为什么我用了这一句语句点win微标没用啊

void click(int x, int y)
{	mouse_event(MOUSEEVENTF_ABSOLUTE|MOUSEEVENTF_MOVE, x*65535/1980, y*65535/1080, 0, 0);
	
	Sleep(50); 
   	mouse_event(MOUSEEVENTF_LEFTDOWN,0,0,0,0);
	mouse_event(MOUSEEVENTF_LEFTUP,0,0,0,0);
 }

还有这一句咋用啊

pWnd->SendMessage(WM_RBUTTONDOWN,0,(y<<16)|x);