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现有窗口的Windows系统活动是否发生变化?
原标题:Is there Windows system event on active window changed?

桌面应用I m 发展中需要了解在应用过程中有哪些窗口是活跃的。 目前,它每250米处使用<条码>GetForeground Window(user32.dll)。 这种做法并不准确。

是否有任何Windows(WINAPI?)事件,每当活跃的(重点)窗口发生变化时,会发生火灾? 我赞同我的反馈。

感谢。

最佳回答

是的,您可使用。 SetWinEventHookFunction.

hEvent = SetWinEventHook(EVENT_SYSTEM_FOREGROUND , 
    EVENT_SYSTEM_FOREGROUND , NULL, 
    WinEventProcCallback, 0, 0, 
    WINEVENT_OUTOFCONTEXT | WINEVENT_SKIPOWNPROCESS);

.......

VOID CALLBACK WinEventProcCallback ( HWINEVENTHOOK hWinEventHook, DWORD dwEvent, HWND hwnd, LONG idObject, LONG idChild, DWORD dwEventThread, DWORD dwmsEventTime)
{
    /* your code here */
}
问题回答

There s the WM_ACTIVATE message, which is sent to the activated and deactivated windows.





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