first commit

windows/storage/streams/datareader.go

@@ -0,0 +1,65 @@
+// Code generated by winrt-go-gen. DO NOT EDIT.
+
+//go:build windows
+
+//nolint:all
+package streams
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+)
+
+const SignatureDataReader string = "rc(Windows.Storage.Streams.DataReader;{e2b50029-b4c1-4314-a4b8-fb813a2f275e})"
+
+type DataReader struct {
+	ole.IUnknown
+}
+
+func (impl *DataReader) ReadBytes(valueSize uint32) ([]uint8, error) {
+	itf := impl.MustQueryInterface(ole.NewGUID(GUIDIDataReader))
+	defer itf.Release()
+	v := (*IDataReader)(unsafe.Pointer(itf))
+	return v.ReadBytes(valueSize)
+}
+
+const GUIDiDataReaderStatics string = "11fcbfc8-f93a-471b-b121-f379e349313c"
+const SignatureiDataReaderStatics string = "{11fcbfc8-f93a-471b-b121-f379e349313c}"
+
+type iDataReaderStatics struct {
+	ole.IInspectable
+}
+
+type iDataReaderStaticsVtbl struct {
+	ole.IInspectableVtbl
+
+	DataReaderFromBuffer uintptr
+}
+
+func (v *iDataReaderStatics) VTable() *iDataReaderStaticsVtbl {
+	return (*iDataReaderStaticsVtbl)(unsafe.Pointer(v.RawVTable))
+}
+
+func DataReaderFromBuffer(buffer *IBuffer) (*DataReader, error) {
+	inspectable, err := ole.RoGetActivationFactory("Windows.Storage.Streams.DataReader", ole.NewGUID(GUIDiDataReaderStatics))
+	if err != nil {
+		return nil, err
+	}
+	v := (*iDataReaderStatics)(unsafe.Pointer(inspectable))
+
+	var out *DataReader
+	hr, _, _ := syscall.SyscallN(
+		v.VTable().DataReaderFromBuffer,
+		uintptr(unsafe.Pointer(v)),      // this
+		uintptr(unsafe.Pointer(buffer)), // in IBuffer
+		uintptr(unsafe.Pointer(&out)),   // out DataReader
+	)
+
+	if hr != 0 {
+		return nil, ole.NewError(hr)
+	}
+
+	return out, nil
+}