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ynduanlian
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Win32 SDK的帮助上这样说:The GetFocus function retrieves the handle of the window that has the keyboard focus, if the window is associated with the calling thread's message queue. 但在在下面的程序中:在窗体上放一个Edit组件,procedure TForm1.Button2Click(Sender: TObject);beginshowMessage(IntToStr(Edit1.Handle));end;procedure TForm1.Button2Click(Sender: TObject);beginshowMessage(IntToStr(self.Handle));end;当光标移到Edit中时点按钮执行下面的代码:procedure TForm1.Button1Click(Sender: TObject);beginshowMessage(IntToStr(GetFocus));end;返回的值既非光标所在窗体的句柄,也不是控件Edit1的窗体,GetFocus返回的究竟是什么的句柄?