first commit

2025-08-22 17:42:23 -04:00
commit a6c09a5890
120 changed files with 11443 additions and 0 deletions
--- a/windows/devices/bluetooth/genericattributeprofile/gattcharacteristic.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattcharacteristic.go
@ -0,0 +1,298 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"github.com/saltosystems/winrt-go/windows/devices/bluetooth"
+	"github.com/saltosystems/winrt-go/windows/foundation"
+	"github.com/saltosystems/winrt-go/windows/storage/streams"
+)
+
+const SignatureGattCharacteristic string = "rc(Windows.Devices.Bluetooth.GenericAttributeProfile.GattCharacteristic;{59cb50c1-5934-4f68-a198-eb864fa44e6b})"
+
+type GattCharacteristic struct {
+	ole.IUnknown
+}
+
+func (impl *GattCharacteristic) GetCharacteristicProperties() (GattCharacteristicProperties, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattCharacteristic))
+	defer itf.Release()
+	v := (*iGattCharacteristic)(unsafe.Pointer(itf))
+	return v.GetCharacteristicProperties()
+}
+
+func (impl *GattCharacteristic) GetUuid() (syscall.GUID, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattCharacteristic))
+	defer itf.Release()
+	v := (*iGattCharacteristic)(unsafe.Pointer(itf))
+	return v.GetUuid()
+}
+
+func (impl *GattCharacteristic) ReadValueAsync() (*foundation.IAsyncOperation, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattCharacteristic))
+	defer itf.Release()
+	v := (*iGattCharacteristic)(unsafe.Pointer(itf))
+	return v.ReadValueAsync()
+}
+
+func (impl *GattCharacteristic) ReadValueWithCacheModeAsync(cacheMode bluetooth.BluetoothCacheMode) (*foundation.IAsyncOperation, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattCharacteristic))
+	defer itf.Release()
+	v := (*iGattCharacteristic)(unsafe.Pointer(itf))
+	return v.ReadValueWithCacheModeAsync(cacheMode)
+}
+
+func (impl *GattCharacteristic) WriteValueAsync(value *streams.IBuffer) (*foundation.IAsyncOperation, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattCharacteristic))
+	defer itf.Release()
+	v := (*iGattCharacteristic)(unsafe.Pointer(itf))
+	return v.WriteValueAsync(value)
+}
+
+func (impl *GattCharacteristic) WriteValueWithOptionAsync(value *streams.IBuffer, writeOption GattWriteOption) (*foundation.IAsyncOperation, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattCharacteristic))
+	defer itf.Release()
+	v := (*iGattCharacteristic)(unsafe.Pointer(itf))
+	return v.WriteValueWithOptionAsync(value, writeOption)
+}
+
+func (impl *GattCharacteristic) WriteClientCharacteristicConfigurationDescriptorAsync(clientCharacteristicConfigurationDescriptorValue GattClientCharacteristicConfigurationDescriptorValue) (*foundation.IAsyncOperation, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattCharacteristic))
+	defer itf.Release()
+	v := (*iGattCharacteristic)(unsafe.Pointer(itf))
+	return v.WriteClientCharacteristicConfigurationDescriptorAsync(clientCharacteristicConfigurationDescriptorValue)
+}
+
+func (impl *GattCharacteristic) AddValueChanged(valueChangedHandler *foundation.TypedEventHandler) (foundation.EventRegistrationToken, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattCharacteristic))
+	defer itf.Release()
+	v := (*iGattCharacteristic)(unsafe.Pointer(itf))
+	return v.AddValueChanged(valueChangedHandler)
+}
+
+func (impl *GattCharacteristic) RemoveValueChanged(valueChangedEventCookie foundation.EventRegistrationToken) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattCharacteristic))
+	defer itf.Release()
+	v := (*iGattCharacteristic)(unsafe.Pointer(itf))
+	return v.RemoveValueChanged(valueChangedEventCookie)
+}
+
+const GUIDiGattCharacteristic string = "59cb50c1-5934-4f68-a198-eb864fa44e6b"
+const SignatureiGattCharacteristic string = "{59cb50c1-5934-4f68-a198-eb864fa44e6b}"
+
+type iGattCharacteristic struct {
+	ole.IInspectable
+}
+
+type iGattCharacteristicVtbl struct {
+	ole.IInspectableVtbl
+
+	GetDescriptors                                        uintptr
+	GetCharacteristicProperties                           uintptr
+	GetProtectionLevel                                    uintptr
+	SetProtectionLevel                                    uintptr
+	GetUserDescription                                    uintptr
+	GetUuid                                               uintptr
+	GetAttributeHandle                                    uintptr
+	GetPresentationFormats                                uintptr
+	ReadValueAsync                                        uintptr
+	ReadValueWithCacheModeAsync                           uintptr
+	WriteValueAsync                                       uintptr
+	WriteValueWithOptionAsync                             uintptr
+	ReadClientCharacteristicConfigurationDescriptorAsync  uintptr
+	WriteClientCharacteristicConfigurationDescriptorAsync uintptr
+	AddValueChanged                                       uintptr
+	RemoveValueChanged                                    uintptr
+}
+
+func (v *iGattCharacteristic) VTable() *iGattCharacteristicVtbl {
+	return (*iGattCharacteristicVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattCharacteristic) GetCharacteristicProperties() (GattCharacteristicProperties, error) {
+	var out GattCharacteristicProperties
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetCharacteristicProperties,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattCharacteristicProperties
+	)
+
+	if hr != 0 {
+		return GattCharacteristicPropertiesNone, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattCharacteristic) GetUuid() (syscall.GUID, error) {
+	var out syscall.GUID
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetUuid,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out syscall.GUID
+	)
+
+	if hr != 0 {
+		return syscall.GUID{}, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattCharacteristic) ReadValueAsync() (*foundation.IAsyncOperation, error) {
+	var out *foundation.IAsyncOperation
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().ReadValueAsync,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out foundation.IAsyncOperation
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattCharacteristic) ReadValueWithCacheModeAsync(cacheMode bluetooth.BluetoothCacheMode) (*foundation.IAsyncOperation, error) {
+	var out *foundation.IAsyncOperation
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().ReadValueWithCacheModeAsync,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(cacheMode),            // in bluetooth.BluetoothCacheMode
+		uintptr(unsafe.Pointer(&out)), // out foundation.IAsyncOperation
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattCharacteristic) WriteValueAsync(value *streams.IBuffer) (*foundation.IAsyncOperation, error) {
+	var out *foundation.IAsyncOperation
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().WriteValueAsync,
+		uintptr(unsafe.Pointer(v)),     // this
+		uintptr(unsafe.Pointer(value)), // in streams.IBuffer
+		uintptr(unsafe.Pointer(&out)),  // out foundation.IAsyncOperation
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattCharacteristic) WriteValueWithOptionAsync(value *streams.IBuffer, writeOption GattWriteOption) (*foundation.IAsyncOperation, error) {
+	var out *foundation.IAsyncOperation
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().WriteValueWithOptionAsync,
+		uintptr(unsafe.Pointer(v)),     // this
+		uintptr(unsafe.Pointer(value)), // in streams.IBuffer
+		uintptr(writeOption),           // in GattWriteOption
+		uintptr(unsafe.Pointer(&out)),  // out foundation.IAsyncOperation
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattCharacteristic) WriteClientCharacteristicConfigurationDescriptorAsync(clientCharacteristicConfigurationDescriptorValue GattClientCharacteristicConfigurationDescriptorValue) (*foundation.IAsyncOperation, error) {
+	var out *foundation.IAsyncOperation
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().WriteClientCharacteristicConfigurationDescriptorAsync,
+		uintptr(unsafe.Pointer(v)),                                // this
+		uintptr(clientCharacteristicConfigurationDescriptorValue), // in GattClientCharacteristicConfigurationDescriptorValue
+		uintptr(unsafe.Pointer(&out)),                             // out foundation.IAsyncOperation
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattCharacteristic) AddValueChanged(valueChangedHandler *foundation.TypedEventHandler) (foundation.EventRegistrationToken, error) {
+	var out foundation.EventRegistrationToken
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().AddValueChanged,
+		uintptr(unsafe.Pointer(v)),                   // this
+		uintptr(unsafe.Pointer(valueChangedHandler)), // in foundation.TypedEventHandler
+		uintptr(unsafe.Pointer(&out)),                // out foundation.EventRegistrationToken
+	)
+
+	if hr != 0 {
+		return foundation.EventRegistrationToken{}, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattCharacteristic) RemoveValueChanged(valueChangedEventCookie foundation.EventRegistrationToken) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().RemoveValueChanged,
+		uintptr(unsafe.Pointer(v)),                        // this
+		uintptr(unsafe.Pointer(&valueChangedEventCookie)), // in foundation.EventRegistrationToken
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+const GUIDiGattCharacteristic2 string = "ae1ab578-ec06-4764-b780-9835a1d35d6e"
+const SignatureiGattCharacteristic2 string = "{ae1ab578-ec06-4764-b780-9835a1d35d6e}"
+
+type iGattCharacteristic2 struct {
+	ole.IInspectable
+}
+
+type iGattCharacteristic2Vtbl struct {
+	ole.IInspectableVtbl
+
+	GetService        uintptr
+	GetAllDescriptors uintptr
+}
+
+func (v *iGattCharacteristic2) VTable() *iGattCharacteristic2Vtbl {
+	return (*iGattCharacteristic2Vtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+const GUIDiGattCharacteristic3 string = "3f3c663e-93d4-406b-b817-db81f8ed53b3"
+const SignatureiGattCharacteristic3 string = "{3f3c663e-93d4-406b-b817-db81f8ed53b3}"
+
+type iGattCharacteristic3 struct {
+	ole.IInspectable
+}
+
+type iGattCharacteristic3Vtbl struct {
+	ole.IInspectableVtbl
+
+	GetDescriptorsAsync                                             uintptr
+	GetDescriptorsWithCacheModeAsync                                uintptr
+	GetDescriptorsForUuidAsync                                      uintptr
+	GetDescriptorsForUuidWithCacheModeAsync                         uintptr
+	WriteValueWithResultAsync                                       uintptr
+	WriteValueWithResultAndOptionAsync                              uintptr
+	WriteClientCharacteristicConfigurationDescriptorWithResultAsync uintptr
+}
+
+func (v *iGattCharacteristic3) VTable() *iGattCharacteristic3Vtbl {
+	return (*iGattCharacteristic3Vtbl)(unsafe.Pointer(v.RawVTable))
+}
--- a/windows/devices/bluetooth/genericattributeprofile/gattcharacteristicproperties.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattcharacteristicproperties.go
@ -0,0 +1,24 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+type GattCharacteristicProperties uint32
+
+const SignatureGattCharacteristicProperties string = "enum(Windows.Devices.Bluetooth.GenericAttributeProfile.GattCharacteristicProperties;u4)"
+
+const (
+	GattCharacteristicPropertiesNone                      GattCharacteristicProperties = 0
+	GattCharacteristicPropertiesBroadcast                 GattCharacteristicProperties = 1
+	GattCharacteristicPropertiesRead                      GattCharacteristicProperties = 2
+	GattCharacteristicPropertiesWriteWithoutResponse      GattCharacteristicProperties = 4
+	GattCharacteristicPropertiesWrite                     GattCharacteristicProperties = 8
+	GattCharacteristicPropertiesNotify                    GattCharacteristicProperties = 16
+	GattCharacteristicPropertiesIndicate                  GattCharacteristicProperties = 32
+	GattCharacteristicPropertiesAuthenticatedSignedWrites GattCharacteristicProperties = 64
+	GattCharacteristicPropertiesExtendedProperties        GattCharacteristicProperties = 128
+	GattCharacteristicPropertiesReliableWrites            GattCharacteristicProperties = 256
+	GattCharacteristicPropertiesWritableAuxiliaries       GattCharacteristicProperties = 512
+)
--- a/windows/devices/bluetooth/genericattributeprofile/gattcharacteristicsresult.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattcharacteristicsresult.go
@ -0,0 +1,83 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"github.com/saltosystems/winrt-go/windows/foundation/collections"
+)
+
+const SignatureGattCharacteristicsResult string = "rc(Windows.Devices.Bluetooth.GenericAttributeProfile.GattCharacteristicsResult;{1194945c-b257-4f3e-9db7-f68bc9a9aef2})"
+
+type GattCharacteristicsResult struct {
+	ole.IUnknown
+}
+
+func (impl *GattCharacteristicsResult) GetStatus() (GattCommunicationStatus, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattCharacteristicsResult))
+	defer itf.Release()
+	v := (*iGattCharacteristicsResult)(unsafe.Pointer(itf))
+	return v.GetStatus()
+}
+
+func (impl *GattCharacteristicsResult) GetCharacteristics() (*collections.IVectorView, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattCharacteristicsResult))
+	defer itf.Release()
+	v := (*iGattCharacteristicsResult)(unsafe.Pointer(itf))
+	return v.GetCharacteristics()
+}
+
+const GUIDiGattCharacteristicsResult string = "1194945c-b257-4f3e-9db7-f68bc9a9aef2"
+const SignatureiGattCharacteristicsResult string = "{1194945c-b257-4f3e-9db7-f68bc9a9aef2}"
+
+type iGattCharacteristicsResult struct {
+	ole.IInspectable
+}
+
+type iGattCharacteristicsResultVtbl struct {
+	ole.IInspectableVtbl
+
+	GetStatus          uintptr
+	GetProtocolError   uintptr
+	GetCharacteristics uintptr
+}
+
+func (v *iGattCharacteristicsResult) VTable() *iGattCharacteristicsResultVtbl {
+	return (*iGattCharacteristicsResultVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattCharacteristicsResult) GetStatus() (GattCommunicationStatus, error) {
+	var out GattCommunicationStatus
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetStatus,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattCommunicationStatus
+	)
+
+	if hr != 0 {
+		return GattCommunicationStatusSuccess, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattCharacteristicsResult) GetCharacteristics() (*collections.IVectorView, error) {
+	var out *collections.IVectorView
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetCharacteristics,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out collections.IVectorView
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
--- a/windows/devices/bluetooth/genericattributeprofile/gattclientcharacteristicconfigurationdescriptorvalue.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattclientcharacteristicconfigurationdescriptorvalue.go
@ -0,0 +1,16 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+type GattClientCharacteristicConfigurationDescriptorValue int32
+
+const SignatureGattClientCharacteristicConfigurationDescriptorValue string = "enum(Windows.Devices.Bluetooth.GenericAttributeProfile.GattClientCharacteristicConfigurationDescriptorValue;i4)"
+
+const (
+	GattClientCharacteristicConfigurationDescriptorValueNone     GattClientCharacteristicConfigurationDescriptorValue = 0
+	GattClientCharacteristicConfigurationDescriptorValueNotify   GattClientCharacteristicConfigurationDescriptorValue = 1
+	GattClientCharacteristicConfigurationDescriptorValueIndicate GattClientCharacteristicConfigurationDescriptorValue = 2
+)
--- a/windows/devices/bluetooth/genericattributeprofile/gattclientnotificationresult.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattclientnotificationresult.go
@ -0,0 +1,144 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"github.com/saltosystems/winrt-go/windows/foundation"
+)
+
+const SignatureGattClientNotificationResult string = "rc(Windows.Devices.Bluetooth.GenericAttributeProfile.GattClientNotificationResult;{506d5599-0112-419a-8e3b-ae21afabd2c2})"
+
+type GattClientNotificationResult struct {
+	ole.IUnknown
+}
+
+func (impl *GattClientNotificationResult) GetSubscribedClient() (*GattSubscribedClient, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattClientNotificationResult))
+	defer itf.Release()
+	v := (*iGattClientNotificationResult)(unsafe.Pointer(itf))
+	return v.GetSubscribedClient()
+}
+
+func (impl *GattClientNotificationResult) GetStatus() (GattCommunicationStatus, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattClientNotificationResult))
+	defer itf.Release()
+	v := (*iGattClientNotificationResult)(unsafe.Pointer(itf))
+	return v.GetStatus()
+}
+
+func (impl *GattClientNotificationResult) GetProtocolError() (*foundation.IReference, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattClientNotificationResult))
+	defer itf.Release()
+	v := (*iGattClientNotificationResult)(unsafe.Pointer(itf))
+	return v.GetProtocolError()
+}
+
+func (impl *GattClientNotificationResult) GetBytesSent() (uint16, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattClientNotificationResult2))
+	defer itf.Release()
+	v := (*iGattClientNotificationResult2)(unsafe.Pointer(itf))
+	return v.GetBytesSent()
+}
+
+const GUIDiGattClientNotificationResult string = "506d5599-0112-419a-8e3b-ae21afabd2c2"
+const SignatureiGattClientNotificationResult string = "{506d5599-0112-419a-8e3b-ae21afabd2c2}"
+
+type iGattClientNotificationResult struct {
+	ole.IInspectable
+}
+
+type iGattClientNotificationResultVtbl struct {
+	ole.IInspectableVtbl
+
+	GetSubscribedClient uintptr
+	GetStatus           uintptr
+	GetProtocolError    uintptr
+}
+
+func (v *iGattClientNotificationResult) VTable() *iGattClientNotificationResultVtbl {
+	return (*iGattClientNotificationResultVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattClientNotificationResult) GetSubscribedClient() (*GattSubscribedClient, error) {
+	var out *GattSubscribedClient
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetSubscribedClient,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattSubscribedClient
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattClientNotificationResult) GetStatus() (GattCommunicationStatus, error) {
+	var out GattCommunicationStatus
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetStatus,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattCommunicationStatus
+	)
+
+	if hr != 0 {
+		return GattCommunicationStatusSuccess, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattClientNotificationResult) GetProtocolError() (*foundation.IReference, error) {
+	var out *foundation.IReference
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetProtocolError,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out foundation.IReference
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+const GUIDiGattClientNotificationResult2 string = "8faec497-45e0-497e-9582-29a1fe281ad5"
+const SignatureiGattClientNotificationResult2 string = "{8faec497-45e0-497e-9582-29a1fe281ad5}"
+
+type iGattClientNotificationResult2 struct {
+	ole.IInspectable
+}
+
+type iGattClientNotificationResult2Vtbl struct {
+	ole.IInspectableVtbl
+
+	GetBytesSent uintptr
+}
+
+func (v *iGattClientNotificationResult2) VTable() *iGattClientNotificationResult2Vtbl {
+	return (*iGattClientNotificationResult2Vtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattClientNotificationResult2) GetBytesSent() (uint16, error) {
+	var out uint16
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetBytesSent,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out uint16
+	)
+
+	if hr != 0 {
+		return 0, ole.NewError(hr)
+	}
+
+	return out, nil
+}
--- a/windows/devices/bluetooth/genericattributeprofile/gattcommunicationstatus.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattcommunicationstatus.go
@ -0,0 +1,17 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+type GattCommunicationStatus int32
+
+const SignatureGattCommunicationStatus string = "enum(Windows.Devices.Bluetooth.GenericAttributeProfile.GattCommunicationStatus;i4)"
+
+const (
+	GattCommunicationStatusSuccess       GattCommunicationStatus = 0
+	GattCommunicationStatusUnreachable   GattCommunicationStatus = 1
+	GattCommunicationStatusProtocolError GattCommunicationStatus = 2
+	GattCommunicationStatusAccessDenied  GattCommunicationStatus = 3
+)
--- a/windows/devices/bluetooth/genericattributeprofile/gattdeviceservice.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattdeviceservice.go
@ -0,0 +1,165 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"github.com/saltosystems/winrt-go/windows/devices/bluetooth"
+	"github.com/saltosystems/winrt-go/windows/foundation"
+)
+
+const SignatureGattDeviceService string = "rc(Windows.Devices.Bluetooth.GenericAttributeProfile.GattDeviceService;{ac7b7c05-b33c-47cf-990f-6b8f5577df71})"
+
+type GattDeviceService struct {
+	ole.IUnknown
+}
+
+func (impl *GattDeviceService) GetUuid() (syscall.GUID, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattDeviceService))
+	defer itf.Release()
+	v := (*iGattDeviceService)(unsafe.Pointer(itf))
+	return v.GetUuid()
+}
+
+func (impl *GattDeviceService) Close() error {
+	itf := impl.MustQueryInterface(ole.NewGUID(foundation.GUIDIClosable))
+	defer itf.Release()
+	v := (*foundation.IClosable)(unsafe.Pointer(itf))
+	return v.Close()
+}
+
+func (impl *GattDeviceService) GetCharacteristicsAsync() (*foundation.IAsyncOperation, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattDeviceService3))
+	defer itf.Release()
+	v := (*iGattDeviceService3)(unsafe.Pointer(itf))
+	return v.GetCharacteristicsAsync()
+}
+
+func (impl *GattDeviceService) GetCharacteristicsWithCacheModeAsync(cacheMode bluetooth.BluetoothCacheMode) (*foundation.IAsyncOperation, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattDeviceService3))
+	defer itf.Release()
+	v := (*iGattDeviceService3)(unsafe.Pointer(itf))
+	return v.GetCharacteristicsWithCacheModeAsync(cacheMode)
+}
+
+const GUIDiGattDeviceService string = "ac7b7c05-b33c-47cf-990f-6b8f5577df71"
+const SignatureiGattDeviceService string = "{ac7b7c05-b33c-47cf-990f-6b8f5577df71}"
+
+type iGattDeviceService struct {
+	ole.IInspectable
+}
+
+type iGattDeviceServiceVtbl struct {
+	ole.IInspectableVtbl
+
+	GetCharacteristics  uintptr
+	GetIncludedServices uintptr
+	GetDeviceId         uintptr
+	GetUuid             uintptr
+	GetAttributeHandle  uintptr
+}
+
+func (v *iGattDeviceService) VTable() *iGattDeviceServiceVtbl {
+	return (*iGattDeviceServiceVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattDeviceService) GetUuid() (syscall.GUID, error) {
+	var out syscall.GUID
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetUuid,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out syscall.GUID
+	)
+
+	if hr != 0 {
+		return syscall.GUID{}, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+const GUIDiGattDeviceService2 string = "fc54520b-0b0d-4708-bae0-9ffd9489bc59"
+const SignatureiGattDeviceService2 string = "{fc54520b-0b0d-4708-bae0-9ffd9489bc59}"
+
+type iGattDeviceService2 struct {
+	ole.IInspectable
+}
+
+type iGattDeviceService2Vtbl struct {
+	ole.IInspectableVtbl
+
+	GetDevice              uintptr
+	GetParentServices      uintptr
+	GetAllCharacteristics  uintptr
+	GetAllIncludedServices uintptr
+}
+
+func (v *iGattDeviceService2) VTable() *iGattDeviceService2Vtbl {
+	return (*iGattDeviceService2Vtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+const GUIDiGattDeviceService3 string = "b293a950-0c53-437c-a9b3-5c3210c6e569"
+const SignatureiGattDeviceService3 string = "{b293a950-0c53-437c-a9b3-5c3210c6e569}"
+
+type iGattDeviceService3 struct {
+	ole.IInspectable
+}
+
+type iGattDeviceService3Vtbl struct {
+	ole.IInspectableVtbl
+
+	GetDeviceAccessInformation                   uintptr
+	GetSession                                   uintptr
+	GetSharingMode                               uintptr
+	RequestAccessAsync                           uintptr
+	OpenAsync                                    uintptr
+	GetCharacteristicsAsync                      uintptr
+	GetCharacteristicsWithCacheModeAsync         uintptr
+	GetCharacteristicsForUuidAsync               uintptr
+	GetCharacteristicsForUuidWithCacheModeAsync  uintptr
+	GetIncludedServicesAsync                     uintptr
+	GetIncludedServicesWithCacheModeAsync        uintptr
+	GetIncludedServicesForUuidAsync              uintptr
+	GetIncludedServicesForUuidWithCacheModeAsync uintptr
+}
+
+func (v *iGattDeviceService3) VTable() *iGattDeviceService3Vtbl {
+	return (*iGattDeviceService3Vtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattDeviceService3) GetCharacteristicsAsync() (*foundation.IAsyncOperation, error) {
+	var out *foundation.IAsyncOperation
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetCharacteristicsAsync,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out foundation.IAsyncOperation
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattDeviceService3) GetCharacteristicsWithCacheModeAsync(cacheMode bluetooth.BluetoothCacheMode) (*foundation.IAsyncOperation, error) {
+	var out *foundation.IAsyncOperation
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetCharacteristicsWithCacheModeAsync,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(cacheMode),            // in bluetooth.BluetoothCacheMode
+		uintptr(unsafe.Pointer(&out)), // out foundation.IAsyncOperation
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
--- a/windows/devices/bluetooth/genericattributeprofile/gattdeviceservicesresult.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattdeviceservicesresult.go
@ -0,0 +1,83 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"github.com/saltosystems/winrt-go/windows/foundation/collections"
+)
+
+const SignatureGattDeviceServicesResult string = "rc(Windows.Devices.Bluetooth.GenericAttributeProfile.GattDeviceServicesResult;{171dd3ee-016d-419d-838a-576cf475a3d8})"
+
+type GattDeviceServicesResult struct {
+	ole.IUnknown
+}
+
+func (impl *GattDeviceServicesResult) GetStatus() (GattCommunicationStatus, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattDeviceServicesResult))
+	defer itf.Release()
+	v := (*iGattDeviceServicesResult)(unsafe.Pointer(itf))
+	return v.GetStatus()
+}
+
+func (impl *GattDeviceServicesResult) GetServices() (*collections.IVectorView, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattDeviceServicesResult))
+	defer itf.Release()
+	v := (*iGattDeviceServicesResult)(unsafe.Pointer(itf))
+	return v.GetServices()
+}
+
+const GUIDiGattDeviceServicesResult string = "171dd3ee-016d-419d-838a-576cf475a3d8"
+const SignatureiGattDeviceServicesResult string = "{171dd3ee-016d-419d-838a-576cf475a3d8}"
+
+type iGattDeviceServicesResult struct {
+	ole.IInspectable
+}
+
+type iGattDeviceServicesResultVtbl struct {
+	ole.IInspectableVtbl
+
+	GetStatus        uintptr
+	GetProtocolError uintptr
+	GetServices      uintptr
+}
+
+func (v *iGattDeviceServicesResult) VTable() *iGattDeviceServicesResultVtbl {
+	return (*iGattDeviceServicesResultVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattDeviceServicesResult) GetStatus() (GattCommunicationStatus, error) {
+	var out GattCommunicationStatus
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetStatus,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattCommunicationStatus
+	)
+
+	if hr != 0 {
+		return GattCommunicationStatusSuccess, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattDeviceServicesResult) GetServices() (*collections.IVectorView, error) {
+	var out *collections.IVectorView
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetServices,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out collections.IVectorView
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
--- a/windows/devices/bluetooth/genericattributeprofile/gattlocalcharacteristic.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattlocalcharacteristic.go
@ -0,0 +1,459 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"github.com/saltosystems/winrt-go/windows/foundation"
+	"github.com/saltosystems/winrt-go/windows/foundation/collections"
+	"github.com/saltosystems/winrt-go/windows/storage/streams"
+)
+
+const SignatureGattLocalCharacteristic string = "rc(Windows.Devices.Bluetooth.GenericAttributeProfile.GattLocalCharacteristic;{aede376d-5412-4d74-92a8-8deb8526829c})"
+
+type GattLocalCharacteristic struct {
+	ole.IUnknown
+}
+
+func (impl *GattLocalCharacteristic) GetUuid() (syscall.GUID, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristic))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristic)(unsafe.Pointer(itf))
+	return v.GetUuid()
+}
+
+func (impl *GattLocalCharacteristic) GetStaticValue() (*streams.IBuffer, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristic))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristic)(unsafe.Pointer(itf))
+	return v.GetStaticValue()
+}
+
+func (impl *GattLocalCharacteristic) GetCharacteristicProperties() (GattCharacteristicProperties, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristic))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristic)(unsafe.Pointer(itf))
+	return v.GetCharacteristicProperties()
+}
+
+func (impl *GattLocalCharacteristic) GetReadProtectionLevel() (GattProtectionLevel, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristic))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristic)(unsafe.Pointer(itf))
+	return v.GetReadProtectionLevel()
+}
+
+func (impl *GattLocalCharacteristic) GetWriteProtectionLevel() (GattProtectionLevel, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristic))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristic)(unsafe.Pointer(itf))
+	return v.GetWriteProtectionLevel()
+}
+
+func (impl *GattLocalCharacteristic) CreateDescriptorAsync(descriptorUuid syscall.GUID, parameters *GattLocalDescriptorParameters) (*foundation.IAsyncOperation, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristic))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristic)(unsafe.Pointer(itf))
+	return v.CreateDescriptorAsync(descriptorUuid, parameters)
+}
+
+func (impl *GattLocalCharacteristic) GetDescriptors() (*collections.IVectorView, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristic))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristic)(unsafe.Pointer(itf))
+	return v.GetDescriptors()
+}
+
+func (impl *GattLocalCharacteristic) GetUserDescription() (string, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristic))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristic)(unsafe.Pointer(itf))
+	return v.GetUserDescription()
+}
+
+func (impl *GattLocalCharacteristic) GetPresentationFormats() (*collections.IVectorView, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristic))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristic)(unsafe.Pointer(itf))
+	return v.GetPresentationFormats()
+}
+
+func (impl *GattLocalCharacteristic) GetSubscribedClients() (*collections.IVectorView, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristic))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristic)(unsafe.Pointer(itf))
+	return v.GetSubscribedClients()
+}
+
+func (impl *GattLocalCharacteristic) AddSubscribedClientsChanged(handler *foundation.TypedEventHandler) (foundation.EventRegistrationToken, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristic))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristic)(unsafe.Pointer(itf))
+	return v.AddSubscribedClientsChanged(handler)
+}
+
+func (impl *GattLocalCharacteristic) RemoveSubscribedClientsChanged(token foundation.EventRegistrationToken) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristic))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristic)(unsafe.Pointer(itf))
+	return v.RemoveSubscribedClientsChanged(token)
+}
+
+func (impl *GattLocalCharacteristic) AddReadRequested(handler *foundation.TypedEventHandler) (foundation.EventRegistrationToken, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristic))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristic)(unsafe.Pointer(itf))
+	return v.AddReadRequested(handler)
+}
+
+func (impl *GattLocalCharacteristic) RemoveReadRequested(token foundation.EventRegistrationToken) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristic))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristic)(unsafe.Pointer(itf))
+	return v.RemoveReadRequested(token)
+}
+
+func (impl *GattLocalCharacteristic) AddWriteRequested(handler *foundation.TypedEventHandler) (foundation.EventRegistrationToken, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristic))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristic)(unsafe.Pointer(itf))
+	return v.AddWriteRequested(handler)
+}
+
+func (impl *GattLocalCharacteristic) RemoveWriteRequested(token foundation.EventRegistrationToken) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristic))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristic)(unsafe.Pointer(itf))
+	return v.RemoveWriteRequested(token)
+}
+
+func (impl *GattLocalCharacteristic) NotifyValueAsync(value *streams.IBuffer) (*foundation.IAsyncOperation, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristic))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristic)(unsafe.Pointer(itf))
+	return v.NotifyValueAsync(value)
+}
+
+func (impl *GattLocalCharacteristic) NotifyValueForSubscribedClientAsync(value *streams.IBuffer, subscribedClient *GattSubscribedClient) (*foundation.IAsyncOperation, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristic))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristic)(unsafe.Pointer(itf))
+	return v.NotifyValueForSubscribedClientAsync(value, subscribedClient)
+}
+
+const GUIDiGattLocalCharacteristic string = "aede376d-5412-4d74-92a8-8deb8526829c"
+const SignatureiGattLocalCharacteristic string = "{aede376d-5412-4d74-92a8-8deb8526829c}"
+
+type iGattLocalCharacteristic struct {
+	ole.IInspectable
+}
+
+type iGattLocalCharacteristicVtbl struct {
+	ole.IInspectableVtbl
+
+	GetUuid                             uintptr
+	GetStaticValue                      uintptr
+	GetCharacteristicProperties         uintptr
+	GetReadProtectionLevel              uintptr
+	GetWriteProtectionLevel             uintptr
+	CreateDescriptorAsync               uintptr
+	GetDescriptors                      uintptr
+	GetUserDescription                  uintptr
+	GetPresentationFormats              uintptr
+	GetSubscribedClients                uintptr
+	AddSubscribedClientsChanged         uintptr
+	RemoveSubscribedClientsChanged      uintptr
+	AddReadRequested                    uintptr
+	RemoveReadRequested                 uintptr
+	AddWriteRequested                   uintptr
+	RemoveWriteRequested                uintptr
+	NotifyValueAsync                    uintptr
+	NotifyValueForSubscribedClientAsync uintptr
+}
+
+func (v *iGattLocalCharacteristic) VTable() *iGattLocalCharacteristicVtbl {
+	return (*iGattLocalCharacteristicVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattLocalCharacteristic) GetUuid() (syscall.GUID, error) {
+	var out syscall.GUID
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetUuid,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out syscall.GUID
+	)
+
+	if hr != 0 {
+		return syscall.GUID{}, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalCharacteristic) GetStaticValue() (*streams.IBuffer, error) {
+	var out *streams.IBuffer
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetStaticValue,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out streams.IBuffer
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalCharacteristic) GetCharacteristicProperties() (GattCharacteristicProperties, error) {
+	var out GattCharacteristicProperties
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetCharacteristicProperties,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattCharacteristicProperties
+	)
+
+	if hr != 0 {
+		return GattCharacteristicPropertiesNone, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalCharacteristic) GetReadProtectionLevel() (GattProtectionLevel, error) {
+	var out GattProtectionLevel
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetReadProtectionLevel,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattProtectionLevel
+	)
+
+	if hr != 0 {
+		return GattProtectionLevelPlain, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalCharacteristic) GetWriteProtectionLevel() (GattProtectionLevel, error) {
+	var out GattProtectionLevel
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetWriteProtectionLevel,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattProtectionLevel
+	)
+
+	if hr != 0 {
+		return GattProtectionLevelPlain, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalCharacteristic) CreateDescriptorAsync(descriptorUuid syscall.GUID, parameters *GattLocalDescriptorParameters) (*foundation.IAsyncOperation, error) {
+	var out *foundation.IAsyncOperation
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().CreateDescriptorAsync,
+		uintptr(unsafe.Pointer(v)),               // this
+		uintptr(unsafe.Pointer(&descriptorUuid)), // in syscall.GUID
+		uintptr(unsafe.Pointer(parameters)),      // in GattLocalDescriptorParameters
+		uintptr(unsafe.Pointer(&out)),            // out foundation.IAsyncOperation
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalCharacteristic) GetDescriptors() (*collections.IVectorView, error) {
+	var out *collections.IVectorView
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetDescriptors,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out collections.IVectorView
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalCharacteristic) GetUserDescription() (string, error) {
+	var outHStr ole.HString
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetUserDescription,
+		uintptr(unsafe.Pointer(v)),        // this
+		uintptr(unsafe.Pointer(&outHStr)), // out string
+	)
+
+	if hr != 0 {
+		return "", ole.NewError(hr)
+	}
+
+	out := outHStr.String()
+	ole.DeleteHString(outHStr)
+	return out, nil
+}
+
+func (v *iGattLocalCharacteristic) GetPresentationFormats() (*collections.IVectorView, error) {
+	var out *collections.IVectorView
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetPresentationFormats,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out collections.IVectorView
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalCharacteristic) GetSubscribedClients() (*collections.IVectorView, error) {
+	var out *collections.IVectorView
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetSubscribedClients,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out collections.IVectorView
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalCharacteristic) AddSubscribedClientsChanged(handler *foundation.TypedEventHandler) (foundation.EventRegistrationToken, error) {
+	var out foundation.EventRegistrationToken
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().AddSubscribedClientsChanged,
+		uintptr(unsafe.Pointer(v)),       // this
+		uintptr(unsafe.Pointer(handler)), // in foundation.TypedEventHandler
+		uintptr(unsafe.Pointer(&out)),    // out foundation.EventRegistrationToken
+	)
+
+	if hr != 0 {
+		return foundation.EventRegistrationToken{}, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalCharacteristic) RemoveSubscribedClientsChanged(token foundation.EventRegistrationToken) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().RemoveSubscribedClientsChanged,
+		uintptr(unsafe.Pointer(v)),      // this
+		uintptr(unsafe.Pointer(&token)), // in foundation.EventRegistrationToken
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattLocalCharacteristic) AddReadRequested(handler *foundation.TypedEventHandler) (foundation.EventRegistrationToken, error) {
+	var out foundation.EventRegistrationToken
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().AddReadRequested,
+		uintptr(unsafe.Pointer(v)),       // this
+		uintptr(unsafe.Pointer(handler)), // in foundation.TypedEventHandler
+		uintptr(unsafe.Pointer(&out)),    // out foundation.EventRegistrationToken
+	)
+
+	if hr != 0 {
+		return foundation.EventRegistrationToken{}, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalCharacteristic) RemoveReadRequested(token foundation.EventRegistrationToken) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().RemoveReadRequested,
+		uintptr(unsafe.Pointer(v)),      // this
+		uintptr(unsafe.Pointer(&token)), // in foundation.EventRegistrationToken
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattLocalCharacteristic) AddWriteRequested(handler *foundation.TypedEventHandler) (foundation.EventRegistrationToken, error) {
+	var out foundation.EventRegistrationToken
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().AddWriteRequested,
+		uintptr(unsafe.Pointer(v)),       // this
+		uintptr(unsafe.Pointer(handler)), // in foundation.TypedEventHandler
+		uintptr(unsafe.Pointer(&out)),    // out foundation.EventRegistrationToken
+	)
+
+	if hr != 0 {
+		return foundation.EventRegistrationToken{}, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalCharacteristic) RemoveWriteRequested(token foundation.EventRegistrationToken) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().RemoveWriteRequested,
+		uintptr(unsafe.Pointer(v)),      // this
+		uintptr(unsafe.Pointer(&token)), // in foundation.EventRegistrationToken
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattLocalCharacteristic) NotifyValueAsync(value *streams.IBuffer) (*foundation.IAsyncOperation, error) {
+	var out *foundation.IAsyncOperation
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().NotifyValueAsync,
+		uintptr(unsafe.Pointer(v)),     // this
+		uintptr(unsafe.Pointer(value)), // in streams.IBuffer
+		uintptr(unsafe.Pointer(&out)),  // out foundation.IAsyncOperation
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalCharacteristic) NotifyValueForSubscribedClientAsync(value *streams.IBuffer, subscribedClient *GattSubscribedClient) (*foundation.IAsyncOperation, error) {
+	var out *foundation.IAsyncOperation
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().NotifyValueForSubscribedClientAsync,
+		uintptr(unsafe.Pointer(v)),                // this
+		uintptr(unsafe.Pointer(value)),            // in streams.IBuffer
+		uintptr(unsafe.Pointer(subscribedClient)), // in GattSubscribedClient
+		uintptr(unsafe.Pointer(&out)),             // out foundation.IAsyncOperation
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
--- a/windows/devices/bluetooth/genericattributeprofile/gattlocalcharacteristicparameters.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattlocalcharacteristicparameters.go
@ -0,0 +1,299 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"github.com/saltosystems/winrt-go/windows/foundation/collections"
+	"github.com/saltosystems/winrt-go/windows/storage/streams"
+)
+
+const SignatureGattLocalCharacteristicParameters string = "rc(Windows.Devices.Bluetooth.GenericAttributeProfile.GattLocalCharacteristicParameters;{faf73db4-4cff-44c7-8445-040e6ead0063})"
+
+type GattLocalCharacteristicParameters struct {
+	ole.IUnknown
+}
+
+func NewGattLocalCharacteristicParameters() (*GattLocalCharacteristicParameters, error) {
+	inspectable, err := ole.RoActivateInstance("Windows.Devices.Bluetooth.GenericAttributeProfile.GattLocalCharacteristicParameters")
+	if err != nil {
+		return nil, err
+	}
+	return (*GattLocalCharacteristicParameters)(unsafe.Pointer(inspectable)), nil
+}
+
+func (impl *GattLocalCharacteristicParameters) SetStaticValue(value *streams.IBuffer) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristicParameters))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristicParameters)(unsafe.Pointer(itf))
+	return v.SetStaticValue(value)
+}
+
+func (impl *GattLocalCharacteristicParameters) GetStaticValue() (*streams.IBuffer, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristicParameters))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristicParameters)(unsafe.Pointer(itf))
+	return v.GetStaticValue()
+}
+
+func (impl *GattLocalCharacteristicParameters) SetCharacteristicProperties(value GattCharacteristicProperties) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristicParameters))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristicParameters)(unsafe.Pointer(itf))
+	return v.SetCharacteristicProperties(value)
+}
+
+func (impl *GattLocalCharacteristicParameters) GetCharacteristicProperties() (GattCharacteristicProperties, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristicParameters))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristicParameters)(unsafe.Pointer(itf))
+	return v.GetCharacteristicProperties()
+}
+
+func (impl *GattLocalCharacteristicParameters) SetReadProtectionLevel(value GattProtectionLevel) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristicParameters))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristicParameters)(unsafe.Pointer(itf))
+	return v.SetReadProtectionLevel(value)
+}
+
+func (impl *GattLocalCharacteristicParameters) GetReadProtectionLevel() (GattProtectionLevel, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristicParameters))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristicParameters)(unsafe.Pointer(itf))
+	return v.GetReadProtectionLevel()
+}
+
+func (impl *GattLocalCharacteristicParameters) SetWriteProtectionLevel(value GattProtectionLevel) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristicParameters))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristicParameters)(unsafe.Pointer(itf))
+	return v.SetWriteProtectionLevel(value)
+}
+
+func (impl *GattLocalCharacteristicParameters) GetWriteProtectionLevel() (GattProtectionLevel, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristicParameters))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristicParameters)(unsafe.Pointer(itf))
+	return v.GetWriteProtectionLevel()
+}
+
+func (impl *GattLocalCharacteristicParameters) SetUserDescription(value string) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristicParameters))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristicParameters)(unsafe.Pointer(itf))
+	return v.SetUserDescription(value)
+}
+
+func (impl *GattLocalCharacteristicParameters) GetUserDescription() (string, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristicParameters))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristicParameters)(unsafe.Pointer(itf))
+	return v.GetUserDescription()
+}
+
+func (impl *GattLocalCharacteristicParameters) GetPresentationFormats() (*collections.IVector, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristicParameters))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristicParameters)(unsafe.Pointer(itf))
+	return v.GetPresentationFormats()
+}
+
+const GUIDiGattLocalCharacteristicParameters string = "faf73db4-4cff-44c7-8445-040e6ead0063"
+const SignatureiGattLocalCharacteristicParameters string = "{faf73db4-4cff-44c7-8445-040e6ead0063}"
+
+type iGattLocalCharacteristicParameters struct {
+	ole.IInspectable
+}
+
+type iGattLocalCharacteristicParametersVtbl struct {
+	ole.IInspectableVtbl
+
+	SetStaticValue              uintptr
+	GetStaticValue              uintptr
+	SetCharacteristicProperties uintptr
+	GetCharacteristicProperties uintptr
+	SetReadProtectionLevel      uintptr
+	GetReadProtectionLevel      uintptr
+	SetWriteProtectionLevel     uintptr
+	GetWriteProtectionLevel     uintptr
+	SetUserDescription          uintptr
+	GetUserDescription          uintptr
+	GetPresentationFormats      uintptr
+}
+
+func (v *iGattLocalCharacteristicParameters) VTable() *iGattLocalCharacteristicParametersVtbl {
+	return (*iGattLocalCharacteristicParametersVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattLocalCharacteristicParameters) SetStaticValue(value *streams.IBuffer) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().SetStaticValue,
+		uintptr(unsafe.Pointer(v)),     // this
+		uintptr(unsafe.Pointer(value)), // in streams.IBuffer
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattLocalCharacteristicParameters) GetStaticValue() (*streams.IBuffer, error) {
+	var out *streams.IBuffer
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetStaticValue,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out streams.IBuffer
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalCharacteristicParameters) SetCharacteristicProperties(value GattCharacteristicProperties) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().SetCharacteristicProperties,
+		uintptr(unsafe.Pointer(v)), // this
+		uintptr(value),             // in GattCharacteristicProperties
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattLocalCharacteristicParameters) GetCharacteristicProperties() (GattCharacteristicProperties, error) {
+	var out GattCharacteristicProperties
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetCharacteristicProperties,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattCharacteristicProperties
+	)
+
+	if hr != 0 {
+		return GattCharacteristicPropertiesNone, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalCharacteristicParameters) SetReadProtectionLevel(value GattProtectionLevel) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().SetReadProtectionLevel,
+		uintptr(unsafe.Pointer(v)), // this
+		uintptr(value),             // in GattProtectionLevel
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattLocalCharacteristicParameters) GetReadProtectionLevel() (GattProtectionLevel, error) {
+	var out GattProtectionLevel
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetReadProtectionLevel,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattProtectionLevel
+	)
+
+	if hr != 0 {
+		return GattProtectionLevelPlain, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalCharacteristicParameters) SetWriteProtectionLevel(value GattProtectionLevel) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().SetWriteProtectionLevel,
+		uintptr(unsafe.Pointer(v)), // this
+		uintptr(value),             // in GattProtectionLevel
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattLocalCharacteristicParameters) GetWriteProtectionLevel() (GattProtectionLevel, error) {
+	var out GattProtectionLevel
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetWriteProtectionLevel,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattProtectionLevel
+	)
+
+	if hr != 0 {
+		return GattProtectionLevelPlain, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalCharacteristicParameters) SetUserDescription(value string) error {
+	valueHStr, err := ole.NewHString(value)
+	if err != nil {
+		return err
+	}
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().SetUserDescription,
+		uintptr(unsafe.Pointer(v)), // this
+		uintptr(valueHStr),         // in string
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattLocalCharacteristicParameters) GetUserDescription() (string, error) {
+	var outHStr ole.HString
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetUserDescription,
+		uintptr(unsafe.Pointer(v)),        // this
+		uintptr(unsafe.Pointer(&outHStr)), // out string
+	)
+
+	if hr != 0 {
+		return "", ole.NewError(hr)
+	}
+
+	out := outHStr.String()
+	ole.DeleteHString(outHStr)
+	return out, nil
+}
+
+func (v *iGattLocalCharacteristicParameters) GetPresentationFormats() (*collections.IVector, error) {
+	var out *collections.IVector
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetPresentationFormats,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out collections.IVector
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
--- a/windows/devices/bluetooth/genericattributeprofile/gattlocalcharacteristicresult.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattlocalcharacteristicresult.go
@ -0,0 +1,82 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"github.com/saltosystems/winrt-go/windows/devices/bluetooth"
+)
+
+const SignatureGattLocalCharacteristicResult string = "rc(Windows.Devices.Bluetooth.GenericAttributeProfile.GattLocalCharacteristicResult;{7975de9b-0170-4397-9666-92f863f12ee6})"
+
+type GattLocalCharacteristicResult struct {
+	ole.IUnknown
+}
+
+func (impl *GattLocalCharacteristicResult) GetCharacteristic() (*GattLocalCharacteristic, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristicResult))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristicResult)(unsafe.Pointer(itf))
+	return v.GetCharacteristic()
+}
+
+func (impl *GattLocalCharacteristicResult) GetError() (bluetooth.BluetoothError, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalCharacteristicResult))
+	defer itf.Release()
+	v := (*iGattLocalCharacteristicResult)(unsafe.Pointer(itf))
+	return v.GetError()
+}
+
+const GUIDiGattLocalCharacteristicResult string = "7975de9b-0170-4397-9666-92f863f12ee6"
+const SignatureiGattLocalCharacteristicResult string = "{7975de9b-0170-4397-9666-92f863f12ee6}"
+
+type iGattLocalCharacteristicResult struct {
+	ole.IInspectable
+}
+
+type iGattLocalCharacteristicResultVtbl struct {
+	ole.IInspectableVtbl
+
+	GetCharacteristic uintptr
+	GetError          uintptr
+}
+
+func (v *iGattLocalCharacteristicResult) VTable() *iGattLocalCharacteristicResultVtbl {
+	return (*iGattLocalCharacteristicResultVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattLocalCharacteristicResult) GetCharacteristic() (*GattLocalCharacteristic, error) {
+	var out *GattLocalCharacteristic
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetCharacteristic,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattLocalCharacteristic
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalCharacteristicResult) GetError() (bluetooth.BluetoothError, error) {
+	var out bluetooth.BluetoothError
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetError,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out bluetooth.BluetoothError
+	)
+
+	if hr != 0 {
+		return bluetooth.BluetoothErrorSuccess, ole.NewError(hr)
+	}
+
+	return out, nil
+}
--- a/windows/devices/bluetooth/genericattributeprofile/gattlocaldescriptorparameters.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattlocaldescriptorparameters.go
@ -0,0 +1,179 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"github.com/saltosystems/winrt-go/windows/storage/streams"
+)
+
+const SignatureGattLocalDescriptorParameters string = "rc(Windows.Devices.Bluetooth.GenericAttributeProfile.GattLocalDescriptorParameters;{5fdede6a-f3c1-4b66-8c4b-e3d2293b40e9})"
+
+type GattLocalDescriptorParameters struct {
+	ole.IUnknown
+}
+
+func NewGattLocalDescriptorParameters() (*GattLocalDescriptorParameters, error) {
+	inspectable, err := ole.RoActivateInstance("Windows.Devices.Bluetooth.GenericAttributeProfile.GattLocalDescriptorParameters")
+	if err != nil {
+		return nil, err
+	}
+	return (*GattLocalDescriptorParameters)(unsafe.Pointer(inspectable)), nil
+}
+
+func (impl *GattLocalDescriptorParameters) SetStaticValue(value *streams.IBuffer) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalDescriptorParameters))
+	defer itf.Release()
+	v := (*iGattLocalDescriptorParameters)(unsafe.Pointer(itf))
+	return v.SetStaticValue(value)
+}
+
+func (impl *GattLocalDescriptorParameters) GetStaticValue() (*streams.IBuffer, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalDescriptorParameters))
+	defer itf.Release()
+	v := (*iGattLocalDescriptorParameters)(unsafe.Pointer(itf))
+	return v.GetStaticValue()
+}
+
+func (impl *GattLocalDescriptorParameters) SetReadProtectionLevel(value GattProtectionLevel) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalDescriptorParameters))
+	defer itf.Release()
+	v := (*iGattLocalDescriptorParameters)(unsafe.Pointer(itf))
+	return v.SetReadProtectionLevel(value)
+}
+
+func (impl *GattLocalDescriptorParameters) GetReadProtectionLevel() (GattProtectionLevel, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalDescriptorParameters))
+	defer itf.Release()
+	v := (*iGattLocalDescriptorParameters)(unsafe.Pointer(itf))
+	return v.GetReadProtectionLevel()
+}
+
+func (impl *GattLocalDescriptorParameters) SetWriteProtectionLevel(value GattProtectionLevel) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalDescriptorParameters))
+	defer itf.Release()
+	v := (*iGattLocalDescriptorParameters)(unsafe.Pointer(itf))
+	return v.SetWriteProtectionLevel(value)
+}
+
+func (impl *GattLocalDescriptorParameters) GetWriteProtectionLevel() (GattProtectionLevel, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalDescriptorParameters))
+	defer itf.Release()
+	v := (*iGattLocalDescriptorParameters)(unsafe.Pointer(itf))
+	return v.GetWriteProtectionLevel()
+}
+
+const GUIDiGattLocalDescriptorParameters string = "5fdede6a-f3c1-4b66-8c4b-e3d2293b40e9"
+const SignatureiGattLocalDescriptorParameters string = "{5fdede6a-f3c1-4b66-8c4b-e3d2293b40e9}"
+
+type iGattLocalDescriptorParameters struct {
+	ole.IInspectable
+}
+
+type iGattLocalDescriptorParametersVtbl struct {
+	ole.IInspectableVtbl
+
+	SetStaticValue          uintptr
+	GetStaticValue          uintptr
+	SetReadProtectionLevel  uintptr
+	GetReadProtectionLevel  uintptr
+	SetWriteProtectionLevel uintptr
+	GetWriteProtectionLevel uintptr
+}
+
+func (v *iGattLocalDescriptorParameters) VTable() *iGattLocalDescriptorParametersVtbl {
+	return (*iGattLocalDescriptorParametersVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattLocalDescriptorParameters) SetStaticValue(value *streams.IBuffer) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().SetStaticValue,
+		uintptr(unsafe.Pointer(v)),     // this
+		uintptr(unsafe.Pointer(value)), // in streams.IBuffer
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattLocalDescriptorParameters) GetStaticValue() (*streams.IBuffer, error) {
+	var out *streams.IBuffer
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetStaticValue,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out streams.IBuffer
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalDescriptorParameters) SetReadProtectionLevel(value GattProtectionLevel) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().SetReadProtectionLevel,
+		uintptr(unsafe.Pointer(v)), // this
+		uintptr(value),             // in GattProtectionLevel
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattLocalDescriptorParameters) GetReadProtectionLevel() (GattProtectionLevel, error) {
+	var out GattProtectionLevel
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetReadProtectionLevel,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattProtectionLevel
+	)
+
+	if hr != 0 {
+		return GattProtectionLevelPlain, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalDescriptorParameters) SetWriteProtectionLevel(value GattProtectionLevel) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().SetWriteProtectionLevel,
+		uintptr(unsafe.Pointer(v)), // this
+		uintptr(value),             // in GattProtectionLevel
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattLocalDescriptorParameters) GetWriteProtectionLevel() (GattProtectionLevel, error) {
+	var out GattProtectionLevel
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetWriteProtectionLevel,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattProtectionLevel
+	)
+
+	if hr != 0 {
+		return GattProtectionLevelPlain, ole.NewError(hr)
+	}
+
+	return out, nil
+}
--- a/windows/devices/bluetooth/genericattributeprofile/gattlocalservice.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattlocalservice.go
@ -0,0 +1,108 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"github.com/saltosystems/winrt-go/windows/foundation"
+	"github.com/saltosystems/winrt-go/windows/foundation/collections"
+)
+
+const SignatureGattLocalService string = "rc(Windows.Devices.Bluetooth.GenericAttributeProfile.GattLocalService;{f513e258-f7f7-4902-b803-57fcc7d6fe83})"
+
+type GattLocalService struct {
+	ole.IUnknown
+}
+
+func (impl *GattLocalService) GetUuid() (syscall.GUID, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalService))
+	defer itf.Release()
+	v := (*iGattLocalService)(unsafe.Pointer(itf))
+	return v.GetUuid()
+}
+
+func (impl *GattLocalService) CreateCharacteristicAsync(characteristicUuid syscall.GUID, parameters *GattLocalCharacteristicParameters) (*foundation.IAsyncOperation, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalService))
+	defer itf.Release()
+	v := (*iGattLocalService)(unsafe.Pointer(itf))
+	return v.CreateCharacteristicAsync(characteristicUuid, parameters)
+}
+
+func (impl *GattLocalService) GetCharacteristics() (*collections.IVectorView, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattLocalService))
+	defer itf.Release()
+	v := (*iGattLocalService)(unsafe.Pointer(itf))
+	return v.GetCharacteristics()
+}
+
+const GUIDiGattLocalService string = "f513e258-f7f7-4902-b803-57fcc7d6fe83"
+const SignatureiGattLocalService string = "{f513e258-f7f7-4902-b803-57fcc7d6fe83}"
+
+type iGattLocalService struct {
+	ole.IInspectable
+}
+
+type iGattLocalServiceVtbl struct {
+	ole.IInspectableVtbl
+
+	GetUuid                   uintptr
+	CreateCharacteristicAsync uintptr
+	GetCharacteristics        uintptr
+}
+
+func (v *iGattLocalService) VTable() *iGattLocalServiceVtbl {
+	return (*iGattLocalServiceVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattLocalService) GetUuid() (syscall.GUID, error) {
+	var out syscall.GUID
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetUuid,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out syscall.GUID
+	)
+
+	if hr != 0 {
+		return syscall.GUID{}, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalService) CreateCharacteristicAsync(characteristicUuid syscall.GUID, parameters *GattLocalCharacteristicParameters) (*foundation.IAsyncOperation, error) {
+	var out *foundation.IAsyncOperation
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().CreateCharacteristicAsync,
+		uintptr(unsafe.Pointer(v)),                   // this
+		uintptr(unsafe.Pointer(&characteristicUuid)), // in syscall.GUID
+		uintptr(unsafe.Pointer(parameters)),          // in GattLocalCharacteristicParameters
+		uintptr(unsafe.Pointer(&out)),                // out foundation.IAsyncOperation
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattLocalService) GetCharacteristics() (*collections.IVectorView, error) {
+	var out *collections.IVectorView
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetCharacteristics,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out collections.IVectorView
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
--- a/windows/devices/bluetooth/genericattributeprofile/gattprotectionlevel.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattprotectionlevel.go
@ -0,0 +1,17 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+type GattProtectionLevel int32
+
+const SignatureGattProtectionLevel string = "enum(Windows.Devices.Bluetooth.GenericAttributeProfile.GattProtectionLevel;i4)"
+
+const (
+	GattProtectionLevelPlain                               GattProtectionLevel = 0
+	GattProtectionLevelAuthenticationRequired              GattProtectionLevel = 1
+	GattProtectionLevelEncryptionRequired                  GattProtectionLevel = 2
+	GattProtectionLevelEncryptionAndAuthenticationRequired GattProtectionLevel = 3
+)
--- a/windows/devices/bluetooth/genericattributeprofile/gattreadrequest.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattreadrequest.go
@ -0,0 +1,196 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"github.com/saltosystems/winrt-go/windows/foundation"
+	"github.com/saltosystems/winrt-go/windows/storage/streams"
+)
+
+const SignatureGattReadRequest string = "rc(Windows.Devices.Bluetooth.GenericAttributeProfile.GattReadRequest;{f1dd6535-6acd-42a6-a4bb-d789dae0043e})"
+
+type GattReadRequest struct {
+	ole.IUnknown
+}
+
+func (impl *GattReadRequest) GetOffset() (uint32, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattReadRequest))
+	defer itf.Release()
+	v := (*iGattReadRequest)(unsafe.Pointer(itf))
+	return v.GetOffset()
+}
+
+func (impl *GattReadRequest) GetLength() (uint32, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattReadRequest))
+	defer itf.Release()
+	v := (*iGattReadRequest)(unsafe.Pointer(itf))
+	return v.GetLength()
+}
+
+func (impl *GattReadRequest) GetState() (GattRequestState, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattReadRequest))
+	defer itf.Release()
+	v := (*iGattReadRequest)(unsafe.Pointer(itf))
+	return v.GetState()
+}
+
+func (impl *GattReadRequest) AddStateChanged(handler *foundation.TypedEventHandler) (foundation.EventRegistrationToken, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattReadRequest))
+	defer itf.Release()
+	v := (*iGattReadRequest)(unsafe.Pointer(itf))
+	return v.AddStateChanged(handler)
+}
+
+func (impl *GattReadRequest) RemoveStateChanged(token foundation.EventRegistrationToken) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattReadRequest))
+	defer itf.Release()
+	v := (*iGattReadRequest)(unsafe.Pointer(itf))
+	return v.RemoveStateChanged(token)
+}
+
+func (impl *GattReadRequest) RespondWithValue(value *streams.IBuffer) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattReadRequest))
+	defer itf.Release()
+	v := (*iGattReadRequest)(unsafe.Pointer(itf))
+	return v.RespondWithValue(value)
+}
+
+func (impl *GattReadRequest) RespondWithProtocolError(protocolError uint8) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattReadRequest))
+	defer itf.Release()
+	v := (*iGattReadRequest)(unsafe.Pointer(itf))
+	return v.RespondWithProtocolError(protocolError)
+}
+
+const GUIDiGattReadRequest string = "f1dd6535-6acd-42a6-a4bb-d789dae0043e"
+const SignatureiGattReadRequest string = "{f1dd6535-6acd-42a6-a4bb-d789dae0043e}"
+
+type iGattReadRequest struct {
+	ole.IInspectable
+}
+
+type iGattReadRequestVtbl struct {
+	ole.IInspectableVtbl
+
+	GetOffset                uintptr
+	GetLength                uintptr
+	GetState                 uintptr
+	AddStateChanged          uintptr
+	RemoveStateChanged       uintptr
+	RespondWithValue         uintptr
+	RespondWithProtocolError uintptr
+}
+
+func (v *iGattReadRequest) VTable() *iGattReadRequestVtbl {
+	return (*iGattReadRequestVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattReadRequest) GetOffset() (uint32, error) {
+	var out uint32
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetOffset,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out uint32
+	)
+
+	if hr != 0 {
+		return 0, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattReadRequest) GetLength() (uint32, error) {
+	var out uint32
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetLength,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out uint32
+	)
+
+	if hr != 0 {
+		return 0, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattReadRequest) GetState() (GattRequestState, error) {
+	var out GattRequestState
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetState,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattRequestState
+	)
+
+	if hr != 0 {
+		return GattRequestStatePending, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattReadRequest) AddStateChanged(handler *foundation.TypedEventHandler) (foundation.EventRegistrationToken, error) {
+	var out foundation.EventRegistrationToken
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().AddStateChanged,
+		uintptr(unsafe.Pointer(v)),       // this
+		uintptr(unsafe.Pointer(handler)), // in foundation.TypedEventHandler
+		uintptr(unsafe.Pointer(&out)),    // out foundation.EventRegistrationToken
+	)
+
+	if hr != 0 {
+		return foundation.EventRegistrationToken{}, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattReadRequest) RemoveStateChanged(token foundation.EventRegistrationToken) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().RemoveStateChanged,
+		uintptr(unsafe.Pointer(v)),      // this
+		uintptr(unsafe.Pointer(&token)), // in foundation.EventRegistrationToken
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattReadRequest) RespondWithValue(value *streams.IBuffer) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().RespondWithValue,
+		uintptr(unsafe.Pointer(v)),     // this
+		uintptr(unsafe.Pointer(value)), // in streams.IBuffer
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattReadRequest) RespondWithProtocolError(protocolError uint8) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().RespondWithProtocolError,
+		uintptr(unsafe.Pointer(v)), // this
+		uintptr(protocolError),     // in uint8
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
--- a/windows/devices/bluetooth/genericattributeprofile/gattreadrequestedeventargs.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattreadrequestedeventargs.go
@ -0,0 +1,105 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"github.com/saltosystems/winrt-go/windows/foundation"
+)
+
+const SignatureGattReadRequestedEventArgs string = "rc(Windows.Devices.Bluetooth.GenericAttributeProfile.GattReadRequestedEventArgs;{93497243-f39c-484b-8ab6-996ba486cfa3})"
+
+type GattReadRequestedEventArgs struct {
+	ole.IUnknown
+}
+
+func (impl *GattReadRequestedEventArgs) GetSession() (*GattSession, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattReadRequestedEventArgs))
+	defer itf.Release()
+	v := (*iGattReadRequestedEventArgs)(unsafe.Pointer(itf))
+	return v.GetSession()
+}
+
+func (impl *GattReadRequestedEventArgs) GetDeferral() (*foundation.Deferral, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattReadRequestedEventArgs))
+	defer itf.Release()
+	v := (*iGattReadRequestedEventArgs)(unsafe.Pointer(itf))
+	return v.GetDeferral()
+}
+
+func (impl *GattReadRequestedEventArgs) GetRequestAsync() (*foundation.IAsyncOperation, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattReadRequestedEventArgs))
+	defer itf.Release()
+	v := (*iGattReadRequestedEventArgs)(unsafe.Pointer(itf))
+	return v.GetRequestAsync()
+}
+
+const GUIDiGattReadRequestedEventArgs string = "93497243-f39c-484b-8ab6-996ba486cfa3"
+const SignatureiGattReadRequestedEventArgs string = "{93497243-f39c-484b-8ab6-996ba486cfa3}"
+
+type iGattReadRequestedEventArgs struct {
+	ole.IInspectable
+}
+
+type iGattReadRequestedEventArgsVtbl struct {
+	ole.IInspectableVtbl
+
+	GetSession      uintptr
+	GetDeferral     uintptr
+	GetRequestAsync uintptr
+}
+
+func (v *iGattReadRequestedEventArgs) VTable() *iGattReadRequestedEventArgsVtbl {
+	return (*iGattReadRequestedEventArgsVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattReadRequestedEventArgs) GetSession() (*GattSession, error) {
+	var out *GattSession
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetSession,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattSession
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattReadRequestedEventArgs) GetDeferral() (*foundation.Deferral, error) {
+	var out *foundation.Deferral
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetDeferral,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out foundation.Deferral
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattReadRequestedEventArgs) GetRequestAsync() (*foundation.IAsyncOperation, error) {
+	var out *foundation.IAsyncOperation
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetRequestAsync,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out foundation.IAsyncOperation
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
--- a/windows/devices/bluetooth/genericattributeprofile/gattreadresult.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattreadresult.go
@ -0,0 +1,99 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"github.com/saltosystems/winrt-go/windows/storage/streams"
+)
+
+const SignatureGattReadResult string = "rc(Windows.Devices.Bluetooth.GenericAttributeProfile.GattReadResult;{63a66f08-1aea-4c4c-a50f-97bae474b348})"
+
+type GattReadResult struct {
+	ole.IUnknown
+}
+
+func (impl *GattReadResult) GetStatus() (GattCommunicationStatus, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattReadResult))
+	defer itf.Release()
+	v := (*iGattReadResult)(unsafe.Pointer(itf))
+	return v.GetStatus()
+}
+
+func (impl *GattReadResult) GetValue() (*streams.IBuffer, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattReadResult))
+	defer itf.Release()
+	v := (*iGattReadResult)(unsafe.Pointer(itf))
+	return v.GetValue()
+}
+
+const GUIDiGattReadResult string = "63a66f08-1aea-4c4c-a50f-97bae474b348"
+const SignatureiGattReadResult string = "{63a66f08-1aea-4c4c-a50f-97bae474b348}"
+
+type iGattReadResult struct {
+	ole.IInspectable
+}
+
+type iGattReadResultVtbl struct {
+	ole.IInspectableVtbl
+
+	GetStatus uintptr
+	GetValue  uintptr
+}
+
+func (v *iGattReadResult) VTable() *iGattReadResultVtbl {
+	return (*iGattReadResultVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattReadResult) GetStatus() (GattCommunicationStatus, error) {
+	var out GattCommunicationStatus
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetStatus,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattCommunicationStatus
+	)
+
+	if hr != 0 {
+		return GattCommunicationStatusSuccess, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattReadResult) GetValue() (*streams.IBuffer, error) {
+	var out *streams.IBuffer
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetValue,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out streams.IBuffer
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+const GUIDiGattReadResult2 string = "a10f50a0-fb43-48af-baaa-638a5c6329fe"
+const SignatureiGattReadResult2 string = "{a10f50a0-fb43-48af-baaa-638a5c6329fe}"
+
+type iGattReadResult2 struct {
+	ole.IInspectable
+}
+
+type iGattReadResult2Vtbl struct {
+	ole.IInspectableVtbl
+
+	GetProtocolError uintptr
+}
+
+func (v *iGattReadResult2) VTable() *iGattReadResult2Vtbl {
+	return (*iGattReadResult2Vtbl)(unsafe.Pointer(v.RawVTable))
+}
--- a/windows/devices/bluetooth/genericattributeprofile/gattrequeststate.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattrequeststate.go
@ -0,0 +1,16 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+type GattRequestState int32
+
+const SignatureGattRequestState string = "enum(Windows.Devices.Bluetooth.GenericAttributeProfile.GattRequestState;i4)"
+
+const (
+	GattRequestStatePending   GattRequestState = 0
+	GattRequestStateCompleted GattRequestState = 1
+	GattRequestStateCanceled  GattRequestState = 2
+)
--- a/windows/devices/bluetooth/genericattributeprofile/gattserviceprovider.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattserviceprovider.go
@ -0,0 +1,231 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"github.com/saltosystems/winrt-go/windows/foundation"
+)
+
+const SignatureGattServiceProvider string = "rc(Windows.Devices.Bluetooth.GenericAttributeProfile.GattServiceProvider;{7822b3cd-2889-4f86-a051-3f0aed1c2760})"
+
+type GattServiceProvider struct {
+	ole.IUnknown
+}
+
+func (impl *GattServiceProvider) GetService() (*GattLocalService, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattServiceProvider))
+	defer itf.Release()
+	v := (*iGattServiceProvider)(unsafe.Pointer(itf))
+	return v.GetService()
+}
+
+func (impl *GattServiceProvider) GetAdvertisementStatus() (GattServiceProviderAdvertisementStatus, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattServiceProvider))
+	defer itf.Release()
+	v := (*iGattServiceProvider)(unsafe.Pointer(itf))
+	return v.GetAdvertisementStatus()
+}
+
+func (impl *GattServiceProvider) AddAdvertisementStatusChanged(handler *foundation.TypedEventHandler) (foundation.EventRegistrationToken, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattServiceProvider))
+	defer itf.Release()
+	v := (*iGattServiceProvider)(unsafe.Pointer(itf))
+	return v.AddAdvertisementStatusChanged(handler)
+}
+
+func (impl *GattServiceProvider) RemoveAdvertisementStatusChanged(token foundation.EventRegistrationToken) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattServiceProvider))
+	defer itf.Release()
+	v := (*iGattServiceProvider)(unsafe.Pointer(itf))
+	return v.RemoveAdvertisementStatusChanged(token)
+}
+
+func (impl *GattServiceProvider) StartAdvertising() error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattServiceProvider))
+	defer itf.Release()
+	v := (*iGattServiceProvider)(unsafe.Pointer(itf))
+	return v.StartAdvertising()
+}
+
+func (impl *GattServiceProvider) StartAdvertisingWithParameters(parameters *GattServiceProviderAdvertisingParameters) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattServiceProvider))
+	defer itf.Release()
+	v := (*iGattServiceProvider)(unsafe.Pointer(itf))
+	return v.StartAdvertisingWithParameters(parameters)
+}
+
+func (impl *GattServiceProvider) StopAdvertising() error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattServiceProvider))
+	defer itf.Release()
+	v := (*iGattServiceProvider)(unsafe.Pointer(itf))
+	return v.StopAdvertising()
+}
+
+const GUIDiGattServiceProvider string = "7822b3cd-2889-4f86-a051-3f0aed1c2760"
+const SignatureiGattServiceProvider string = "{7822b3cd-2889-4f86-a051-3f0aed1c2760}"
+
+type iGattServiceProvider struct {
+	ole.IInspectable
+}
+
+type iGattServiceProviderVtbl struct {
+	ole.IInspectableVtbl
+
+	GetService                       uintptr
+	GetAdvertisementStatus           uintptr
+	AddAdvertisementStatusChanged    uintptr
+	RemoveAdvertisementStatusChanged uintptr
+	StartAdvertising                 uintptr
+	StartAdvertisingWithParameters   uintptr
+	StopAdvertising                  uintptr
+}
+
+func (v *iGattServiceProvider) VTable() *iGattServiceProviderVtbl {
+	return (*iGattServiceProviderVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattServiceProvider) GetService() (*GattLocalService, error) {
+	var out *GattLocalService
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetService,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattLocalService
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattServiceProvider) GetAdvertisementStatus() (GattServiceProviderAdvertisementStatus, error) {
+	var out GattServiceProviderAdvertisementStatus
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetAdvertisementStatus,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattServiceProviderAdvertisementStatus
+	)
+
+	if hr != 0 {
+		return GattServiceProviderAdvertisementStatusCreated, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattServiceProvider) AddAdvertisementStatusChanged(handler *foundation.TypedEventHandler) (foundation.EventRegistrationToken, error) {
+	var out foundation.EventRegistrationToken
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().AddAdvertisementStatusChanged,
+		uintptr(unsafe.Pointer(v)),       // this
+		uintptr(unsafe.Pointer(handler)), // in foundation.TypedEventHandler
+		uintptr(unsafe.Pointer(&out)),    // out foundation.EventRegistrationToken
+	)
+
+	if hr != 0 {
+		return foundation.EventRegistrationToken{}, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattServiceProvider) RemoveAdvertisementStatusChanged(token foundation.EventRegistrationToken) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().RemoveAdvertisementStatusChanged,
+		uintptr(unsafe.Pointer(v)),      // this
+		uintptr(unsafe.Pointer(&token)), // in foundation.EventRegistrationToken
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattServiceProvider) StartAdvertising() error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().StartAdvertising,
+		uintptr(unsafe.Pointer(v)), // this
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattServiceProvider) StartAdvertisingWithParameters(parameters *GattServiceProviderAdvertisingParameters) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().StartAdvertisingWithParameters,
+		uintptr(unsafe.Pointer(v)),          // this
+		uintptr(unsafe.Pointer(parameters)), // in GattServiceProviderAdvertisingParameters
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattServiceProvider) StopAdvertising() error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().StopAdvertising,
+		uintptr(unsafe.Pointer(v)), // this
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+const GUIDiGattServiceProviderStatics string = "31794063-5256-4054-a4f4-7bbe7755a57e"
+const SignatureiGattServiceProviderStatics string = "{31794063-5256-4054-a4f4-7bbe7755a57e}"
+
+type iGattServiceProviderStatics struct {
+	ole.IInspectable
+}
+
+type iGattServiceProviderStaticsVtbl struct {
+	ole.IInspectableVtbl
+
+	GattServiceProviderCreateAsync uintptr
+}
+
+func (v *iGattServiceProviderStatics) VTable() *iGattServiceProviderStaticsVtbl {
+	return (*iGattServiceProviderStaticsVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func GattServiceProviderCreateAsync(serviceUuid syscall.GUID) (*foundation.IAsyncOperation, error) {
+	inspectable, err := ole.RoGetActivationFactory("Windows.Devices.Bluetooth.GenericAttributeProfile.GattServiceProvider", ole.NewGUID(GUIDiGattServiceProviderStatics))
+	if err != nil {
+		return nil, err
+	}
+	v := (*iGattServiceProviderStatics)(unsafe.Pointer(inspectable))
+
+	var out *foundation.IAsyncOperation
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GattServiceProviderCreateAsync,
+		uintptr(unsafe.Pointer(v)),            // this
+		uintptr(unsafe.Pointer(&serviceUuid)), // in syscall.GUID
+		uintptr(unsafe.Pointer(&out)),         // out foundation.IAsyncOperation
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
--- a/windows/devices/bluetooth/genericattributeprofile/gattserviceprovideradvertisementstatus.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattserviceprovideradvertisementstatus.go
@ -0,0 +1,18 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+type GattServiceProviderAdvertisementStatus int32
+
+const SignatureGattServiceProviderAdvertisementStatus string = "enum(Windows.Devices.Bluetooth.GenericAttributeProfile.GattServiceProviderAdvertisementStatus;i4)"
+
+const (
+	GattServiceProviderAdvertisementStatusCreated                            GattServiceProviderAdvertisementStatus = 0
+	GattServiceProviderAdvertisementStatusStopped                            GattServiceProviderAdvertisementStatus = 1
+	GattServiceProviderAdvertisementStatusStarted                            GattServiceProviderAdvertisementStatus = 2
+	GattServiceProviderAdvertisementStatusAborted                            GattServiceProviderAdvertisementStatus = 3
+	GattServiceProviderAdvertisementStatusStartedWithoutAllAdvertisementData GattServiceProviderAdvertisementStatus = 4
+)
--- a/windows/devices/bluetooth/genericattributeprofile/gattserviceprovideradvertisingparameters.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattserviceprovideradvertisingparameters.go
@ -0,0 +1,195 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"github.com/saltosystems/winrt-go/windows/storage/streams"
+)
+
+const SignatureGattServiceProviderAdvertisingParameters string = "rc(Windows.Devices.Bluetooth.GenericAttributeProfile.GattServiceProviderAdvertisingParameters;{e2ce31ab-6315-4c22-9bd7-781dbc3d8d82})"
+
+type GattServiceProviderAdvertisingParameters struct {
+	ole.IUnknown
+}
+
+func NewGattServiceProviderAdvertisingParameters() (*GattServiceProviderAdvertisingParameters, error) {
+	inspectable, err := ole.RoActivateInstance("Windows.Devices.Bluetooth.GenericAttributeProfile.GattServiceProviderAdvertisingParameters")
+	if err != nil {
+		return nil, err
+	}
+	return (*GattServiceProviderAdvertisingParameters)(unsafe.Pointer(inspectable)), nil
+}
+
+func (impl *GattServiceProviderAdvertisingParameters) SetIsConnectable(value bool) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattServiceProviderAdvertisingParameters))
+	defer itf.Release()
+	v := (*iGattServiceProviderAdvertisingParameters)(unsafe.Pointer(itf))
+	return v.SetIsConnectable(value)
+}
+
+func (impl *GattServiceProviderAdvertisingParameters) GetIsConnectable() (bool, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattServiceProviderAdvertisingParameters))
+	defer itf.Release()
+	v := (*iGattServiceProviderAdvertisingParameters)(unsafe.Pointer(itf))
+	return v.GetIsConnectable()
+}
+
+func (impl *GattServiceProviderAdvertisingParameters) SetIsDiscoverable(value bool) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattServiceProviderAdvertisingParameters))
+	defer itf.Release()
+	v := (*iGattServiceProviderAdvertisingParameters)(unsafe.Pointer(itf))
+	return v.SetIsDiscoverable(value)
+}
+
+func (impl *GattServiceProviderAdvertisingParameters) GetIsDiscoverable() (bool, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattServiceProviderAdvertisingParameters))
+	defer itf.Release()
+	v := (*iGattServiceProviderAdvertisingParameters)(unsafe.Pointer(itf))
+	return v.GetIsDiscoverable()
+}
+
+func (impl *GattServiceProviderAdvertisingParameters) SetServiceData(value *streams.IBuffer) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattServiceProviderAdvertisingParameters2))
+	defer itf.Release()
+	v := (*iGattServiceProviderAdvertisingParameters2)(unsafe.Pointer(itf))
+	return v.SetServiceData(value)
+}
+
+func (impl *GattServiceProviderAdvertisingParameters) GetServiceData() (*streams.IBuffer, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattServiceProviderAdvertisingParameters2))
+	defer itf.Release()
+	v := (*iGattServiceProviderAdvertisingParameters2)(unsafe.Pointer(itf))
+	return v.GetServiceData()
+}
+
+const GUIDiGattServiceProviderAdvertisingParameters string = "e2ce31ab-6315-4c22-9bd7-781dbc3d8d82"
+const SignatureiGattServiceProviderAdvertisingParameters string = "{e2ce31ab-6315-4c22-9bd7-781dbc3d8d82}"
+
+type iGattServiceProviderAdvertisingParameters struct {
+	ole.IInspectable
+}
+
+type iGattServiceProviderAdvertisingParametersVtbl struct {
+	ole.IInspectableVtbl
+
+	SetIsConnectable  uintptr
+	GetIsConnectable  uintptr
+	SetIsDiscoverable uintptr
+	GetIsDiscoverable uintptr
+}
+
+func (v *iGattServiceProviderAdvertisingParameters) VTable() *iGattServiceProviderAdvertisingParametersVtbl {
+	return (*iGattServiceProviderAdvertisingParametersVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattServiceProviderAdvertisingParameters) SetIsConnectable(value bool) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().SetIsConnectable,
+		uintptr(unsafe.Pointer(v)),                // this
+		uintptr(*(*byte)(unsafe.Pointer(&value))), // in bool
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattServiceProviderAdvertisingParameters) GetIsConnectable() (bool, error) {
+	var out bool
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetIsConnectable,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out bool
+	)
+
+	if hr != 0 {
+		return false, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattServiceProviderAdvertisingParameters) SetIsDiscoverable(value bool) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().SetIsDiscoverable,
+		uintptr(unsafe.Pointer(v)),                // this
+		uintptr(*(*byte)(unsafe.Pointer(&value))), // in bool
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattServiceProviderAdvertisingParameters) GetIsDiscoverable() (bool, error) {
+	var out bool
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetIsDiscoverable,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out bool
+	)
+
+	if hr != 0 {
+		return false, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+const GUIDiGattServiceProviderAdvertisingParameters2 string = "ff68468d-ca92-4434-9743-0e90988ad879"
+const SignatureiGattServiceProviderAdvertisingParameters2 string = "{ff68468d-ca92-4434-9743-0e90988ad879}"
+
+type iGattServiceProviderAdvertisingParameters2 struct {
+	ole.IInspectable
+}
+
+type iGattServiceProviderAdvertisingParameters2Vtbl struct {
+	ole.IInspectableVtbl
+
+	SetServiceData uintptr
+	GetServiceData uintptr
+}
+
+func (v *iGattServiceProviderAdvertisingParameters2) VTable() *iGattServiceProviderAdvertisingParameters2Vtbl {
+	return (*iGattServiceProviderAdvertisingParameters2Vtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattServiceProviderAdvertisingParameters2) SetServiceData(value *streams.IBuffer) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().SetServiceData,
+		uintptr(unsafe.Pointer(v)),     // this
+		uintptr(unsafe.Pointer(value)), // in streams.IBuffer
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattServiceProviderAdvertisingParameters2) GetServiceData() (*streams.IBuffer, error) {
+	var out *streams.IBuffer
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetServiceData,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out streams.IBuffer
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
--- a/windows/devices/bluetooth/genericattributeprofile/gattserviceproviderresult.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattserviceproviderresult.go
@ -0,0 +1,82 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"github.com/saltosystems/winrt-go/windows/devices/bluetooth"
+)
+
+const SignatureGattServiceProviderResult string = "rc(Windows.Devices.Bluetooth.GenericAttributeProfile.GattServiceProviderResult;{764696d8-c53e-428c-8a48-67afe02c3ae6})"
+
+type GattServiceProviderResult struct {
+	ole.IUnknown
+}
+
+func (impl *GattServiceProviderResult) GetError() (bluetooth.BluetoothError, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattServiceProviderResult))
+	defer itf.Release()
+	v := (*iGattServiceProviderResult)(unsafe.Pointer(itf))
+	return v.GetError()
+}
+
+func (impl *GattServiceProviderResult) GetServiceProvider() (*GattServiceProvider, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattServiceProviderResult))
+	defer itf.Release()
+	v := (*iGattServiceProviderResult)(unsafe.Pointer(itf))
+	return v.GetServiceProvider()
+}
+
+const GUIDiGattServiceProviderResult string = "764696d8-c53e-428c-8a48-67afe02c3ae6"
+const SignatureiGattServiceProviderResult string = "{764696d8-c53e-428c-8a48-67afe02c3ae6}"
+
+type iGattServiceProviderResult struct {
+	ole.IInspectable
+}
+
+type iGattServiceProviderResultVtbl struct {
+	ole.IInspectableVtbl
+
+	GetError           uintptr
+	GetServiceProvider uintptr
+}
+
+func (v *iGattServiceProviderResult) VTable() *iGattServiceProviderResultVtbl {
+	return (*iGattServiceProviderResultVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattServiceProviderResult) GetError() (bluetooth.BluetoothError, error) {
+	var out bluetooth.BluetoothError
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetError,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out bluetooth.BluetoothError
+	)
+
+	if hr != 0 {
+		return bluetooth.BluetoothErrorSuccess, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattServiceProviderResult) GetServiceProvider() (*GattServiceProvider, error) {
+	var out *GattServiceProvider
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetServiceProvider,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattServiceProvider
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
--- a/windows/devices/bluetooth/genericattributeprofile/gattsession.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattsession.go
@ -0,0 +1,224 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"github.com/saltosystems/winrt-go/windows/devices/bluetooth"
+	"github.com/saltosystems/winrt-go/windows/foundation"
+)
+
+const SignatureGattSession string = "rc(Windows.Devices.Bluetooth.GenericAttributeProfile.GattSession;{d23b5143-e04e-4c24-999c-9c256f9856b1})"
+
+type GattSession struct {
+	ole.IUnknown
+}
+
+func (impl *GattSession) GetCanMaintainConnection() (bool, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattSession))
+	defer itf.Release()
+	v := (*iGattSession)(unsafe.Pointer(itf))
+	return v.GetCanMaintainConnection()
+}
+
+func (impl *GattSession) SetMaintainConnection(value bool) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattSession))
+	defer itf.Release()
+	v := (*iGattSession)(unsafe.Pointer(itf))
+	return v.SetMaintainConnection(value)
+}
+
+func (impl *GattSession) GetMaintainConnection() (bool, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattSession))
+	defer itf.Release()
+	v := (*iGattSession)(unsafe.Pointer(itf))
+	return v.GetMaintainConnection()
+}
+
+func (impl *GattSession) GetMaxPduSize() (uint16, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattSession))
+	defer itf.Release()
+	v := (*iGattSession)(unsafe.Pointer(itf))
+	return v.GetMaxPduSize()
+}
+
+func (impl *GattSession) AddMaxPduSizeChanged(handler *foundation.TypedEventHandler) (foundation.EventRegistrationToken, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattSession))
+	defer itf.Release()
+	v := (*iGattSession)(unsafe.Pointer(itf))
+	return v.AddMaxPduSizeChanged(handler)
+}
+
+func (impl *GattSession) RemoveMaxPduSizeChanged(token foundation.EventRegistrationToken) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattSession))
+	defer itf.Release()
+	v := (*iGattSession)(unsafe.Pointer(itf))
+	return v.RemoveMaxPduSizeChanged(token)
+}
+
+func (impl *GattSession) Close() error {
+	itf := impl.MustQueryInterface(ole.NewGUID(foundation.GUIDIClosable))
+	defer itf.Release()
+	v := (*foundation.IClosable)(unsafe.Pointer(itf))
+	return v.Close()
+}
+
+const GUIDiGattSession string = "d23b5143-e04e-4c24-999c-9c256f9856b1"
+const SignatureiGattSession string = "{d23b5143-e04e-4c24-999c-9c256f9856b1}"
+
+type iGattSession struct {
+	ole.IInspectable
+}
+
+type iGattSessionVtbl struct {
+	ole.IInspectableVtbl
+
+	GetDeviceId                uintptr
+	GetCanMaintainConnection   uintptr
+	SetMaintainConnection      uintptr
+	GetMaintainConnection      uintptr
+	GetMaxPduSize              uintptr
+	GetSessionStatus           uintptr
+	AddMaxPduSizeChanged       uintptr
+	RemoveMaxPduSizeChanged    uintptr
+	AddSessionStatusChanged    uintptr
+	RemoveSessionStatusChanged uintptr
+}
+
+func (v *iGattSession) VTable() *iGattSessionVtbl {
+	return (*iGattSessionVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattSession) GetCanMaintainConnection() (bool, error) {
+	var out bool
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetCanMaintainConnection,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out bool
+	)
+
+	if hr != 0 {
+		return false, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattSession) SetMaintainConnection(value bool) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().SetMaintainConnection,
+		uintptr(unsafe.Pointer(v)),                // this
+		uintptr(*(*byte)(unsafe.Pointer(&value))), // in bool
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattSession) GetMaintainConnection() (bool, error) {
+	var out bool
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetMaintainConnection,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out bool
+	)
+
+	if hr != 0 {
+		return false, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattSession) GetMaxPduSize() (uint16, error) {
+	var out uint16
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetMaxPduSize,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out uint16
+	)
+
+	if hr != 0 {
+		return 0, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattSession) AddMaxPduSizeChanged(handler *foundation.TypedEventHandler) (foundation.EventRegistrationToken, error) {
+	var out foundation.EventRegistrationToken
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().AddMaxPduSizeChanged,
+		uintptr(unsafe.Pointer(v)),       // this
+		uintptr(unsafe.Pointer(handler)), // in foundation.TypedEventHandler
+		uintptr(unsafe.Pointer(&out)),    // out foundation.EventRegistrationToken
+	)
+
+	if hr != 0 {
+		return foundation.EventRegistrationToken{}, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattSession) RemoveMaxPduSizeChanged(token foundation.EventRegistrationToken) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().RemoveMaxPduSizeChanged,
+		uintptr(unsafe.Pointer(v)),      // this
+		uintptr(unsafe.Pointer(&token)), // in foundation.EventRegistrationToken
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+const GUIDiGattSessionStatics string = "2e65b95c-539f-4db7-82a8-73bdbbf73ebf"
+const SignatureiGattSessionStatics string = "{2e65b95c-539f-4db7-82a8-73bdbbf73ebf}"
+
+type iGattSessionStatics struct {
+	ole.IInspectable
+}
+
+type iGattSessionStaticsVtbl struct {
+	ole.IInspectableVtbl
+
+	GattSessionFromDeviceIdAsync uintptr
+}
+
+func (v *iGattSessionStatics) VTable() *iGattSessionStaticsVtbl {
+	return (*iGattSessionStaticsVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func GattSessionFromDeviceIdAsync(deviceId *bluetooth.BluetoothDeviceId) (*foundation.IAsyncOperation, error) {
+	inspectable, err := ole.RoGetActivationFactory("Windows.Devices.Bluetooth.GenericAttributeProfile.GattSession", ole.NewGUID(GUIDiGattSessionStatics))
+	if err != nil {
+		return nil, err
+	}
+	v := (*iGattSessionStatics)(unsafe.Pointer(inspectable))
+
+	var out *foundation.IAsyncOperation
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GattSessionFromDeviceIdAsync,
+		uintptr(unsafe.Pointer(v)),        // this
+		uintptr(unsafe.Pointer(deviceId)), // in bluetooth.BluetoothDeviceId
+		uintptr(unsafe.Pointer(&out)),     // out foundation.IAsyncOperation
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
--- a/windows/devices/bluetooth/genericattributeprofile/gattsubscribedclient.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattsubscribedclient.go
@ -0,0 +1,128 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"github.com/saltosystems/winrt-go/windows/foundation"
+)
+
+const SignatureGattSubscribedClient string = "rc(Windows.Devices.Bluetooth.GenericAttributeProfile.GattSubscribedClient;{736e9001-15a4-4ec2-9248-e3f20d463be9})"
+
+type GattSubscribedClient struct {
+	ole.IUnknown
+}
+
+func (impl *GattSubscribedClient) GetSession() (*GattSession, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattSubscribedClient))
+	defer itf.Release()
+	v := (*iGattSubscribedClient)(unsafe.Pointer(itf))
+	return v.GetSession()
+}
+
+func (impl *GattSubscribedClient) GetMaxNotificationSize() (uint16, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattSubscribedClient))
+	defer itf.Release()
+	v := (*iGattSubscribedClient)(unsafe.Pointer(itf))
+	return v.GetMaxNotificationSize()
+}
+
+func (impl *GattSubscribedClient) AddMaxNotificationSizeChanged(handler *foundation.TypedEventHandler) (foundation.EventRegistrationToken, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattSubscribedClient))
+	defer itf.Release()
+	v := (*iGattSubscribedClient)(unsafe.Pointer(itf))
+	return v.AddMaxNotificationSizeChanged(handler)
+}
+
+func (impl *GattSubscribedClient) RemoveMaxNotificationSizeChanged(token foundation.EventRegistrationToken) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattSubscribedClient))
+	defer itf.Release()
+	v := (*iGattSubscribedClient)(unsafe.Pointer(itf))
+	return v.RemoveMaxNotificationSizeChanged(token)
+}
+
+const GUIDiGattSubscribedClient string = "736e9001-15a4-4ec2-9248-e3f20d463be9"
+const SignatureiGattSubscribedClient string = "{736e9001-15a4-4ec2-9248-e3f20d463be9}"
+
+type iGattSubscribedClient struct {
+	ole.IInspectable
+}
+
+type iGattSubscribedClientVtbl struct {
+	ole.IInspectableVtbl
+
+	GetSession                       uintptr
+	GetMaxNotificationSize           uintptr
+	AddMaxNotificationSizeChanged    uintptr
+	RemoveMaxNotificationSizeChanged uintptr
+}
+
+func (v *iGattSubscribedClient) VTable() *iGattSubscribedClientVtbl {
+	return (*iGattSubscribedClientVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattSubscribedClient) GetSession() (*GattSession, error) {
+	var out *GattSession
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetSession,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattSession
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattSubscribedClient) GetMaxNotificationSize() (uint16, error) {
+	var out uint16
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetMaxNotificationSize,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out uint16
+	)
+
+	if hr != 0 {
+		return 0, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattSubscribedClient) AddMaxNotificationSizeChanged(handler *foundation.TypedEventHandler) (foundation.EventRegistrationToken, error) {
+	var out foundation.EventRegistrationToken
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().AddMaxNotificationSizeChanged,
+		uintptr(unsafe.Pointer(v)),       // this
+		uintptr(unsafe.Pointer(handler)), // in foundation.TypedEventHandler
+		uintptr(unsafe.Pointer(&out)),    // out foundation.EventRegistrationToken
+	)
+
+	if hr != 0 {
+		return foundation.EventRegistrationToken{}, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattSubscribedClient) RemoveMaxNotificationSizeChanged(token foundation.EventRegistrationToken) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().RemoveMaxNotificationSizeChanged,
+		uintptr(unsafe.Pointer(v)),      // this
+		uintptr(unsafe.Pointer(&token)), // in foundation.EventRegistrationToken
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
--- a/windows/devices/bluetooth/genericattributeprofile/gattvaluechangedeventargs.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattvaluechangedeventargs.go
@ -0,0 +1,83 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"github.com/saltosystems/winrt-go/windows/foundation"
+	"github.com/saltosystems/winrt-go/windows/storage/streams"
+)
+
+const SignatureGattValueChangedEventArgs string = "rc(Windows.Devices.Bluetooth.GenericAttributeProfile.GattValueChangedEventArgs;{d21bdb54-06e3-4ed8-a263-acfac8ba7313})"
+
+type GattValueChangedEventArgs struct {
+	ole.IUnknown
+}
+
+func (impl *GattValueChangedEventArgs) GetCharacteristicValue() (*streams.IBuffer, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattValueChangedEventArgs))
+	defer itf.Release()
+	v := (*iGattValueChangedEventArgs)(unsafe.Pointer(itf))
+	return v.GetCharacteristicValue()
+}
+
+func (impl *GattValueChangedEventArgs) GetTimestamp() (foundation.DateTime, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattValueChangedEventArgs))
+	defer itf.Release()
+	v := (*iGattValueChangedEventArgs)(unsafe.Pointer(itf))
+	return v.GetTimestamp()
+}
+
+const GUIDiGattValueChangedEventArgs string = "d21bdb54-06e3-4ed8-a263-acfac8ba7313"
+const SignatureiGattValueChangedEventArgs string = "{d21bdb54-06e3-4ed8-a263-acfac8ba7313}"
+
+type iGattValueChangedEventArgs struct {
+	ole.IInspectable
+}
+
+type iGattValueChangedEventArgsVtbl struct {
+	ole.IInspectableVtbl
+
+	GetCharacteristicValue uintptr
+	GetTimestamp           uintptr
+}
+
+func (v *iGattValueChangedEventArgs) VTable() *iGattValueChangedEventArgsVtbl {
+	return (*iGattValueChangedEventArgsVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattValueChangedEventArgs) GetCharacteristicValue() (*streams.IBuffer, error) {
+	var out *streams.IBuffer
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetCharacteristicValue,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out streams.IBuffer
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattValueChangedEventArgs) GetTimestamp() (foundation.DateTime, error) {
+	var out foundation.DateTime
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetTimestamp,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out foundation.DateTime
+	)
+
+	if hr != 0 {
+		return foundation.DateTime{}, ole.NewError(hr)
+	}
+
+	return out, nil
+}
--- a/windows/devices/bluetooth/genericattributeprofile/gattwriteoption.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattwriteoption.go
@ -0,0 +1,15 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+type GattWriteOption int32
+
+const SignatureGattWriteOption string = "enum(Windows.Devices.Bluetooth.GenericAttributeProfile.GattWriteOption;i4)"
+
+const (
+	GattWriteOptionWriteWithResponse    GattWriteOption = 0
+	GattWriteOptionWriteWithoutResponse GattWriteOption = 1
+)
--- a/windows/devices/bluetooth/genericattributeprofile/gattwriterequest.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattwriterequest.go
@ -0,0 +1,218 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"github.com/saltosystems/winrt-go/windows/foundation"
+	"github.com/saltosystems/winrt-go/windows/storage/streams"
+)
+
+const SignatureGattWriteRequest string = "rc(Windows.Devices.Bluetooth.GenericAttributeProfile.GattWriteRequest;{aeb6a9ed-de2f-4fc2-a9a8-94ea7844f13d})"
+
+type GattWriteRequest struct {
+	ole.IUnknown
+}
+
+func (impl *GattWriteRequest) GetValue() (*streams.IBuffer, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattWriteRequest))
+	defer itf.Release()
+	v := (*iGattWriteRequest)(unsafe.Pointer(itf))
+	return v.GetValue()
+}
+
+func (impl *GattWriteRequest) GetOffset() (uint32, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattWriteRequest))
+	defer itf.Release()
+	v := (*iGattWriteRequest)(unsafe.Pointer(itf))
+	return v.GetOffset()
+}
+
+func (impl *GattWriteRequest) GetOption() (GattWriteOption, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattWriteRequest))
+	defer itf.Release()
+	v := (*iGattWriteRequest)(unsafe.Pointer(itf))
+	return v.GetOption()
+}
+
+func (impl *GattWriteRequest) GetState() (GattRequestState, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattWriteRequest))
+	defer itf.Release()
+	v := (*iGattWriteRequest)(unsafe.Pointer(itf))
+	return v.GetState()
+}
+
+func (impl *GattWriteRequest) AddStateChanged(handler *foundation.TypedEventHandler) (foundation.EventRegistrationToken, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattWriteRequest))
+	defer itf.Release()
+	v := (*iGattWriteRequest)(unsafe.Pointer(itf))
+	return v.AddStateChanged(handler)
+}
+
+func (impl *GattWriteRequest) RemoveStateChanged(token foundation.EventRegistrationToken) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattWriteRequest))
+	defer itf.Release()
+	v := (*iGattWriteRequest)(unsafe.Pointer(itf))
+	return v.RemoveStateChanged(token)
+}
+
+func (impl *GattWriteRequest) Respond() error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattWriteRequest))
+	defer itf.Release()
+	v := (*iGattWriteRequest)(unsafe.Pointer(itf))
+	return v.Respond()
+}
+
+func (impl *GattWriteRequest) RespondWithProtocolError(protocolError uint8) error {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattWriteRequest))
+	defer itf.Release()
+	v := (*iGattWriteRequest)(unsafe.Pointer(itf))
+	return v.RespondWithProtocolError(protocolError)
+}
+
+const GUIDiGattWriteRequest string = "aeb6a9ed-de2f-4fc2-a9a8-94ea7844f13d"
+const SignatureiGattWriteRequest string = "{aeb6a9ed-de2f-4fc2-a9a8-94ea7844f13d}"
+
+type iGattWriteRequest struct {
+	ole.IInspectable
+}
+
+type iGattWriteRequestVtbl struct {
+	ole.IInspectableVtbl
+
+	GetValue                 uintptr
+	GetOffset                uintptr
+	GetOption                uintptr
+	GetState                 uintptr
+	AddStateChanged          uintptr
+	RemoveStateChanged       uintptr
+	Respond                  uintptr
+	RespondWithProtocolError uintptr
+}
+
+func (v *iGattWriteRequest) VTable() *iGattWriteRequestVtbl {
+	return (*iGattWriteRequestVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattWriteRequest) GetValue() (*streams.IBuffer, error) {
+	var out *streams.IBuffer
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetValue,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out streams.IBuffer
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattWriteRequest) GetOffset() (uint32, error) {
+	var out uint32
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetOffset,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out uint32
+	)
+
+	if hr != 0 {
+		return 0, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattWriteRequest) GetOption() (GattWriteOption, error) {
+	var out GattWriteOption
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetOption,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattWriteOption
+	)
+
+	if hr != 0 {
+		return GattWriteOptionWriteWithResponse, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattWriteRequest) GetState() (GattRequestState, error) {
+	var out GattRequestState
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetState,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattRequestState
+	)
+
+	if hr != 0 {
+		return GattRequestStatePending, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattWriteRequest) AddStateChanged(handler *foundation.TypedEventHandler) (foundation.EventRegistrationToken, error) {
+	var out foundation.EventRegistrationToken
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().AddStateChanged,
+		uintptr(unsafe.Pointer(v)),       // this
+		uintptr(unsafe.Pointer(handler)), // in foundation.TypedEventHandler
+		uintptr(unsafe.Pointer(&out)),    // out foundation.EventRegistrationToken
+	)
+
+	if hr != 0 {
+		return foundation.EventRegistrationToken{}, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattWriteRequest) RemoveStateChanged(token foundation.EventRegistrationToken) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().RemoveStateChanged,
+		uintptr(unsafe.Pointer(v)),      // this
+		uintptr(unsafe.Pointer(&token)), // in foundation.EventRegistrationToken
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattWriteRequest) Respond() error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().Respond,
+		uintptr(unsafe.Pointer(v)), // this
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
+
+func (v *iGattWriteRequest) RespondWithProtocolError(protocolError uint8) error {
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().RespondWithProtocolError,
+		uintptr(unsafe.Pointer(v)), // this
+		uintptr(protocolError),     // in uint8
+	)
+
+	if hr != 0 {
+		return ole.NewError(hr)
+	}
+
+	return nil
+}
--- a/windows/devices/bluetooth/genericattributeprofile/gattwriterequestedeventargs.go
+++ b/windows/devices/bluetooth/genericattributeprofile/gattwriterequestedeventargs.go
@ -0,0 +1,105 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package genericattributeprofile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"github.com/saltosystems/winrt-go/windows/foundation"
+)
+
+const SignatureGattWriteRequestedEventArgs string = "rc(Windows.Devices.Bluetooth.GenericAttributeProfile.GattWriteRequestedEventArgs;{2dec8bbe-a73a-471a-94d5-037deadd0806})"
+
+type GattWriteRequestedEventArgs struct {
+	ole.IUnknown
+}
+
+func (impl *GattWriteRequestedEventArgs) GetSession() (*GattSession, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattWriteRequestedEventArgs))
+	defer itf.Release()
+	v := (*iGattWriteRequestedEventArgs)(unsafe.Pointer(itf))
+	return v.GetSession()
+}
+
+func (impl *GattWriteRequestedEventArgs) GetDeferral() (*foundation.Deferral, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattWriteRequestedEventArgs))
+	defer itf.Release()
+	v := (*iGattWriteRequestedEventArgs)(unsafe.Pointer(itf))
+	return v.GetDeferral()
+}
+
+func (impl *GattWriteRequestedEventArgs) GetRequestAsync() (*foundation.IAsyncOperation, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDiGattWriteRequestedEventArgs))
+	defer itf.Release()
+	v := (*iGattWriteRequestedEventArgs)(unsafe.Pointer(itf))
+	return v.GetRequestAsync()
+}
+
+const GUIDiGattWriteRequestedEventArgs string = "2dec8bbe-a73a-471a-94d5-037deadd0806"
+const SignatureiGattWriteRequestedEventArgs string = "{2dec8bbe-a73a-471a-94d5-037deadd0806}"
+
+type iGattWriteRequestedEventArgs struct {
+	ole.IInspectable
+}
+
+type iGattWriteRequestedEventArgsVtbl struct {
+	ole.IInspectableVtbl
+
+	GetSession      uintptr
+	GetDeferral     uintptr
+	GetRequestAsync uintptr
+}
+
+func (v *iGattWriteRequestedEventArgs) VTable() *iGattWriteRequestedEventArgsVtbl {
+	return (*iGattWriteRequestedEventArgsVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func (v *iGattWriteRequestedEventArgs) GetSession() (*GattSession, error) {
+	var out *GattSession
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetSession,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out GattSession
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattWriteRequestedEventArgs) GetDeferral() (*foundation.Deferral, error) {
+	var out *foundation.Deferral
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetDeferral,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out foundation.Deferral
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}
+
+func (v *iGattWriteRequestedEventArgs) GetRequestAsync() (*foundation.IAsyncOperation, error) {
+	var out *foundation.IAsyncOperation
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().GetRequestAsync,
+		uintptr(unsafe.Pointer(v)),    // this
+		uintptr(unsafe.Pointer(&out)), // out foundation.IAsyncOperation
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}