int mouse_event(int dwFlags, int dx, int dy, int cButtons, int dwExtraInfo);
1、这里是鼠标左键按下和松开两个事件的组合即一次单击：
mouse_event (MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, 0, 0, 0, 0 )
2、模拟鼠标右键单击事件：
mouse_event (MOUSEEVENTF_RIGHTDOWN | MOUSEEVENTF_RIGHTUP, 0, 0, 0, 0 )
3、两次连续的鼠标左键单击事件 构成一次鼠标双击事件：
mouse_event (MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, 0, 0, 0, 0 )
mouse_event (MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, 0, 0, 0, 0 )
4、使用绝对坐标 MOUSEEVENTF_ABSOLUTE | MOUSEEVENTF_MOVE, 500, 500, 0, 0
需要说明的是，如果没有使用MOUSEEVENTF_ABSOLUTE，函数默认的是相对于鼠标当前位置的点，如果dx，和dy，用0，0表示，这函数认为是当前鼠标所在的点。５、直接设定绝对坐标并单击 mouse_event(MOUSEEVENTF_LEFTDOWN, X * 65536 / 1024, Y * 65536 / 768, 0, 0); mouse_event(MOUSEEVENTF_LEFTUP, X * 65536 / 1024, Y * 65536 / 768, 0, 0); 其中X，Y分别是你要点击的点的横坐标和纵坐标
keybd_event模拟(Win+R):
keybd_event(VK_LWIN,0,0,0);
keybd_event(0x52,0,0,0);//0x52 is the virtual-key of letter 'R'
keybd_event(0x52,0,KEYEVENTF_KEYUP,0);
keybd_event(VK_LWIN,0,KEYEVENTF_KEYUP,0);