求教MFC中用keybd_event方法模拟按键

[kllll1119]

MFC用keybd_event模拟按win+D键（最小化所有窗口），为什么不起作用啊

keybd_event(VK_LWIN, 0, 0 ,0);
keybd_event('D', 0, 0 ,0);
keybd_event('D', 0, KEYEVENTF_KEYUP ,0);
keybd_event(VK_LWIN, 0, KEYEVENTF_KEYUP,0);

[图灵狗]

参考http://www.vckbase.com/index.php/wv/160.html，里面有源代码。

引用 楼主 kllll1119 的回复:

MFC用keybd_event模拟按win+D键（最小化所有窗口），为什么不起作用啊 keybd_event(VK_LWIN, 0, 0 ,0); keybd_event('D', 0, 0 ,0); keybd_event('D', 0, KEYEVENTF_KEYUP ,0); keybd_event(VK_LWIN, 0, KEYEVENTF_KEYUP,0);

[大道曙光]

MSDN: Windows NT/2000/XP/Vista:This function has been superseded. Use SendInput instead. 也就是说，不推荐使用这个旧函数。考虑使用SendInput代替。 至于SendInput的用法，查一下MSDN就行了。

[赵4老师]

DOWN和UP不配对？ http://www.autohotkey.com

[大道曙光]

#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <tchar.h>

void EmulateLWinDV1(void)
{
    UINT uVSCOfLWin = MapVirtualKey(VK_LWIN, MAPVK_VK_TO_VSC_EX);
    UINT uVSCOfD    = MapVirtualKey('D', MAPVK_VK_TO_VSC_EX);

    // LWin down
    keybd_event(VK_LWIN, uVSCOfLWin, 
        KEYEVENTF_EXTENDEDKEY | 0, 0);
    // 'D' down
    keybd_event('D', uVSCOfD, 
        KEYEVENTF_EXTENDEDKEY | 0, 0);
    // 'D' up
    keybd_event('D', uVSCOfD, 
        KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);
    // LWin up
    keybd_event(VK_LWIN, uVSCOfLWin, 
        KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);
}

void EmulateLWinDV2(void)
{
    INPUT keyPress;

    keyPress.type = INPUT_KEYBOARD;
    keyPress.ki.time = 0;
    keyPress.ki.dwExtraInfo = GetMessageExtraInfo();

    /// down
    keyPress.ki.dwFlags = 0;
    // LWin down
    keyPress.ki.wVk = VK_LWIN;
    SendInput(1, &keyPress, sizeof(keyPress));
    // 'D' down
    keyPress.ki.wVk = 'D';
    SendInput(1, &keyPress, sizeof(keyPress));
    
    /// up
    keyPress.ki.dwFlags = KEYEVENTF_KEYUP;
    // 'D' up
    SendInput(1, &keyPress, sizeof(keyPress));
    // LWin up
    keyPress.ki.wVk = VK_LWIN;
    SendInput(1, &keyPress, sizeof(keyPress));
}

int _tmain(int argc, _TCHAR **argv)
{
#if 0
    EmulateLWinDV1();
#else
    EmulateLWinDV2();
#endif
    return 0;
}
而且SendInput可以让你把一系列按键操作放到一个数组中，然后调用一次SendInput发送出去。