58 lines
1 KiB
Go
58 lines
1 KiB
Go
//go:build windows
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package ole
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import (
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"reflect"
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"syscall"
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"unsafe"
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)
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func reflectQueryInterface(self interface{}, method uintptr, interfaceID *GUID, obj interface{}) (err error) {
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selfValue := reflect.ValueOf(self).Elem()
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objValue := reflect.ValueOf(obj).Elem()
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hr, _, _ := syscall.Syscall(
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method,
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3,
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selfValue.UnsafeAddr(),
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uintptr(unsafe.Pointer(interfaceID)),
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objValue.Addr().Pointer())
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if hr != 0 {
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err = NewError(hr)
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}
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return
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}
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func queryInterface(unk *IUnknown, iid *GUID) (disp *IDispatch, err error) {
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hr, _, _ := syscall.Syscall(
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unk.VTable().QueryInterface,
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3,
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uintptr(unsafe.Pointer(unk)),
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uintptr(unsafe.Pointer(iid)),
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uintptr(unsafe.Pointer(&disp)))
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if hr != 0 {
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err = NewError(hr)
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}
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return
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}
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func addRef(unk *IUnknown) int32 {
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ret, _, _ := syscall.Syscall(
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unk.VTable().AddRef,
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1,
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uintptr(unsafe.Pointer(unk)),
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0,
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0)
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return int32(ret)
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}
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func release(unk *IUnknown) int32 {
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ret, _, _ := syscall.Syscall(
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unk.VTable().Release,
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1,
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uintptr(unsafe.Pointer(unk)),
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0,
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0)
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return int32(ret)
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}
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