80 lines
1.8 KiB
Go
80 lines
1.8 KiB
Go
// Code generated by winrt-go-gen. DO NOT EDIT.
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//go:build windows
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//nolint:all
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package streams
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import (
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"syscall"
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"unsafe"
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"github.com/go-ole/go-ole"
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)
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const SignatureBuffer string = "rc(Windows.Storage.Streams.Buffer;{905a0fe0-bc53-11df-8c49-001e4fc686da})"
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type Buffer struct {
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ole.IUnknown
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}
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func (impl *Buffer) GetCapacity() (uint32, error) {
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itf := impl.MustQueryInterface(ole.NewGUID(GUIDIBuffer))
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defer itf.Release()
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v := (*IBuffer)(unsafe.Pointer(itf))
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return v.GetCapacity()
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}
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func (impl *Buffer) GetLength() (uint32, error) {
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itf := impl.MustQueryInterface(ole.NewGUID(GUIDIBuffer))
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defer itf.Release()
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v := (*IBuffer)(unsafe.Pointer(itf))
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return v.GetLength()
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}
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func (impl *Buffer) SetLength(value uint32) error {
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itf := impl.MustQueryInterface(ole.NewGUID(GUIDIBuffer))
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defer itf.Release()
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v := (*IBuffer)(unsafe.Pointer(itf))
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return v.SetLength(value)
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}
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const GUIDiBufferFactory string = "71af914d-c10f-484b-bc50-14bc623b3a27"
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const SignatureiBufferFactory string = "{71af914d-c10f-484b-bc50-14bc623b3a27}"
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type iBufferFactory struct {
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ole.IInspectable
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}
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type iBufferFactoryVtbl struct {
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ole.IInspectableVtbl
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BufferCreate uintptr
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}
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func (v *iBufferFactory) VTable() *iBufferFactoryVtbl {
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return (*iBufferFactoryVtbl)(unsafe.Pointer(v.RawVTable))
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}
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func BufferCreate(capacity uint32) (*Buffer, error) {
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inspectable, err := ole.RoGetActivationFactory("Windows.Storage.Streams.Buffer", ole.NewGUID(GUIDiBufferFactory))
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if err != nil {
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return nil, err
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}
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v := (*iBufferFactory)(unsafe.Pointer(inspectable))
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var out *Buffer
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hr, _, _ := syscall.SyscallN(
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v.VTable().BufferCreate,
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uintptr(unsafe.Pointer(v)), // this
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uintptr(capacity), // in uint32
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uintptr(unsafe.Pointer(&out)), // out Buffer
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)
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if hr != 0 {
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return nil, ole.NewError(hr)
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}
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return out, nil
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}
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