使用Windows API,GetForegroundWindow()无论它来自哪个应用程序,都将获得最顶层窗口GetActiveWindow()的句柄,并获取应用程序活动窗口的句柄.Declare您需要的陈述:
Declare Function GetForegroundWindow Lib "user32.dll" () As Long
Declare Function GetActiveWindow Lib "user32.dll" () As Long
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调用任一函数将返回如上所述的窗口句柄.