Winform 设置快捷键退出

winform 设置按Esc键退出窗体

重写ProcessCmdKey方法处理Esc键盘内容，代码如下：

protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
{
	int WM_KEYDOWN = 256;
    int WM_SYSKEYDOWN = 260;
    if (msg.Msg == WM_KEYDOWN | msg.Msg == WM_SYSKEYDOWN)
    {
        switch (keyData)
        {
        	case Keys.Escape:
            this.Close();//esc关闭窗体
            break;
        }
    }
    return false;
}