see
How do I check the state of the virtual keys, Caps lock for example?
http://www.syncfusion.com/FAQ/WinForms/FAQ_c46c.asp#q852q
How do I check the state of the virtual keys, Caps lock for example?
http://www.syncfusion.com/FAQ/WinForms/FAQ_c46c.asp#q852q
解决方案 »
免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货