70 lines
2.1 KiB
Go
70 lines
2.1 KiB
Go
//go:build windows
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package win
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import (
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"reflect"
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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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COINIT_MULTITHREADED = windows.COINIT_MULTITHREADED
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COINIT_APARTMENTTHREADED = windows.COINIT_APARTMENTTHREADED
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COINIT_DISABLE_OLE1DDE = windows.COINIT_DISABLE_OLE1DDE
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COINIT_SPEED_OVER_MEMORY = windows.COINIT_SPEED_OVER_MEMORY
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CLSCTX_INPROC_SERVER = windows.CLSCTX_INPROC_SERVER
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CLSCTX_INPROC_HANDLER = windows.CLSCTX_INPROC_HANDLER
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CLSCTX_LOCAL_SERVER = windows.CLSCTX_LOCAL_SERVER
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CLSCTX_REMOTE_SERVER = windows.CLSCTX_REMOTE_SERVER
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CLSCTX_ALL = windows.CLSCTX_INPROC_SERVER | windows.CLSCTX_INPROC_HANDLER | windows.CLSCTX_LOCAL_SERVER | windows.CLSCTX_REMOTE_SERVER
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E_CANCELED = windows.ERROR_CANCELLED | windows.FACILITY_WIN32<<16 | 0x80000000
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RPC_E_CHANGED_MODE = syscall.Errno(windows.RPC_E_CHANGED_MODE)
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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 _IUnknownBase struct{ COMObject }
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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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func (c *_IUnknownBase) Release() {
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vtbl := (*(**_IUnknownVtbl)(unsafe.Pointer(c)))
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c.Call(vtbl.Release)
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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 CoCreateInstance(clsid uintptr, unkOuter *COMObject, clsContext int32, iid uintptr, address unsafe.Pointer) (res error) = ole32.CoCreateInstance
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//sys CoTaskMemFree(address Pointer) = ole32.CoTaskMemFree
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func uuid(s string) uintptr {
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return (*reflect.StringHeader)(unsafe.Pointer(&s)).Data
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}
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