c#捕获窗口最小化和还原的事件

下面的代码演示了当前窗口最小化、还原的时候另一个窗口f2也最小化、还原的功能，参考了http://topic.youkuaiyun.com/t/20020717/09/879937.html 中wistaria的回答

[DllImport("user32.dll", EntryPoint = "SendMessage")] private static extern int SendMessage(IntPtr hWnd, int Msg, int wParam, int lParam); const int WM_SYSCOMMAND = 0x0112; const int SC_MINIMIZE = 0xF020; const int SC_MAXIMIZE = 0xF030; const int SC_RESTORE = 0xF120; protected override void WndProc(ref Message m) { base.WndProc(ref m); if (m.Msg==WM_SYSCOMMAND) { int sc = m.WParam.ToInt32(); if (sc == SC_MINIMIZE || sc == SC_RESTORE) { SendMessage(f2.Handle, m.Msg, sc, 0); } } }