48 lines
1.2 KiB
Go
48 lines
1.2 KiB
Go
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//go:build windows
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package win
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import (
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"syscall"
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"unsafe"
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"golang.org/x/sys/windows"
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)
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const (
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RPC_E_CHANGED_MODE syscall.Errno = 0x80010106
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)
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func CoInitializeEx(reserved uintptr, coInit uint32) error {
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return windows.CoInitializeEx(reserved, coInit)
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}
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func CoUninitialize() { windows.CoUninitialize() }
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// https://github.com/wine-mirror/wine/blob/master/include/unknwn.idl
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type IUnknownVtbl struct {
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QueryInterface uintptr
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AddRef uintptr
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Release uintptr
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}
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type COMObject struct{}
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//go:uintptrescapes
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func (o *COMObject) Call(trap uintptr, a ...uintptr) (r1, r2 uintptr, lastErr error) {
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switch nargs := uintptr(len(a)); nargs {
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case 0:
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return syscall.Syscall(trap, nargs+1, uintptr(unsafe.Pointer(o)), 0, 0)
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case 1:
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return syscall.Syscall(trap, nargs+1, uintptr(unsafe.Pointer(o)), a[0], 0)
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case 2:
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return syscall.Syscall(trap, nargs+1, uintptr(unsafe.Pointer(o)), a[0], a[1])
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default:
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panic("COM call with too many arguments.")
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}
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}
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//sys CoTaskMemFree(address uintptr) = ole32.CoTaskMemFree
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//sys CoCreateInstance(clsid uintptr, unkOuter unsafe.Pointer, clsContext int32, iid uintptr, address unsafe.Pointer) (ret error) = ole32.CoCreateInstance
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