C#窗口拦截键盘事件

有时候需要拦截键盘的事件使程序按照设计者的要求执行。

       protected override void WndProc(ref Message m)          {              const int WM_HOTKEY = 0x0312; // 热键消息                if (m.Msg == WM_HOTKEY)              {                  //最大最小化热键                }             //鼠标左键右键中间滑轮事件时，屏保计时器清零 [9/15/2010 huzhonghua]              const int WM_LBUTTONDOWN = 0x0201;              const int WM_RBUTTONDOWN = 0x0204;              const int WM_MOUSEDOWN = 0x0210;              const int WM_MOUSEWHEEL = 0x020A;              if (m.Msg == WM_MOUSEDOWN || m.Msg == WM_LBUTTONDOWN || m.Msg == WM_RBUTTONDOWN || m.Msg == WM_MOUSEWHEEL)              {                 //所有键盘事件                }              base.WndProc(ref  m);          }