C#全局热键设置与窗体热键设置实例

        [DllImport("user32.dll", SetLastError = true)]
        public static extern bool UnregisterHotKey(
            IntPtr hWnd,                //要取消热键的窗口的句柄
            int id                      //要取消热键的ID
            );

        //定义了辅助键的名称（将数字转变为字符以便于记忆，也可去除此枚举而直接使用数值）
        [Flags()]
        public enum KeyModifiers
        {
            None = 0,
            style="border-left-color: rgb(0, 153, 204); border-left-width: 1px; border-left-style: solid; padding: 0px 3px; margin: 3px auto 0px; width: 640px; background-color: rgb(242, 246, 251); clear: both; border-top-color: rgb(0, 153, 204); border-top-width: 1px; border-top-style: solid; border-right-color: rgb(0, 153, 204); border-right-width: 1px; border-right-style: solid;"> 复制代码 private const int WM_HOTKEY = 0x312; //窗口消息-热键
private const int WM_CREATE = 0x1; //窗口消息-创建
private const int WM_DESTROY = 0x2; //窗口消息-销毁
private const int Space = 0x3572; //热键ID
protected override void WndProc(ref Message m)
{
    base.WndProc(ref m);
    switch (m.Msg)
    {
 case WM_HOTKEY: //窗口消息-热键ID
     switch (m.WParam.ToInt32())
     {
  case Space: //热键ID
      MessageBox.Show("我按了Control +Shift +Alt +S");
      break;
  default:
      break;
     }
     break;
 case WM_CREATE: //窗口消息-创建
     AppHotKey.RegKey(Handle, Space, AppHotKey.KeyModifiers.Ctrl | AppHotKey.KeyModifiers.Shift | AppHotKey.KeyModifiers.Alt, Keys.S);
     break;
 case WM_DESTROY: //窗口消息-销毁