子窗体怎么点击按钮触发父窗体的MouseDown事件

[asdjkjk123456]

RT，子窗体点击按钮时，就已经触发了MouseDown，其实我想重新在父窗体上触发MouseDown该怎么做，就是还得按一下鼠标才触发事件，谢谢！

[sdl2005lyx]

用API函数：

 [DllImport("user32.dll", EntryPoint = "FindWindowEx")]
  public static extern IntPtr FindWindowEx(IntPtr hWnd1, int hWnd2, string lpsz1, string lpsz2);


[DllImport("user32.dll", EntryPoint = "SendMessage")]
  public static extern int SendMessage(
  IntPtr hwnd,
  int wMsg,
  int wParam,
  int lParam
  );

[寒江易雪_王孙]

LZ你的结贴率

[cfvgodot]

委托实现

http://topic.csdn.net/u/20110331/17/08451c7b-d9af-4a94-882c-84e81dab2efc.html