50 lines
1.1 KiB
Go
50 lines
1.1 KiB
Go
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// 9 february 2014
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package main
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import (
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// "syscall"
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"unsafe"
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)
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type MSG struct {
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Hwnd HWND
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Message uint32
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WParam WPARAM
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LParam LPARAM
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Time uint32
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Pt POINT
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}
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var (
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dispatchMessage = user32.NewProc("DispatchMessageW")
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getMessage = user32.NewProc("GetMessageW")
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translateMessage = user32.NewProc("TranslateMessage")
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)
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// TODO handle errors
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func DispatchMessage(lpmsg *MSG) (result LRESULT, err error) {
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r1, _, _ := dispatchMessage.Call(uintptr(unsafe.Pointer(lpmsg)))
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return LRESULT(r1), nil
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}
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var getMessageFail = -1 // because Go doesn't let me
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func GetMessage(hWnd HWND, wMsgFilterMin uint32, wMsgFilterMax uint32) (lpMsg *MSG, quit bool, err error) {
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lpMsg = new(MSG)
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r1, _, err := getMessage.Call(
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uintptr(unsafe.Pointer(lpMsg)),
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uintptr(hWnd),
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uintptr(wMsgFilterMin),
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uintptr(wMsgFilterMax))
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if r1 == uintptr(getMessageFail) { // failure
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return nil, false, err
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}
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return lpMsg, r1 == 0, nil
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}
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// TODO handle errors
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func TranslateMessage(lpMsg *MSG) (translated bool, err error) {
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r1, _, _ := translateMessage.Call(uintptr(unsafe.Pointer(lpMsg)))
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return r1 != 0, nil
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}
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