实现了同时按下鼠标左右键关闭、隐藏窗口的功能,在按下或者弹起系统键，光标自动移动到文件菜单上，本人用Hook屏蔽掉此功能，只是用来学习 -Achieved about the same time press the mouse button closure, hidden window function, press the up or the system key, the cursor automatically move to the File menu, I use this fea