本例模仿ctrl c事件
keybd_event( VK_CONTROL,0x11, 0,0 ); //ctrl键按下
keybd_event( 0x43,0x43,0,0 ); //c键按下 0x43为‘c’键的识别码 keybd_event( 0x43,0x43,KEYEVENTF_KEYUP,0 ); //c键抬起
keybd_event( VK_CONTROL,0x11,KEYEVENTF_KEYUP,0); //ctrl键抬起
