MFC-ScreenToClient

win32API POINT point = { 20,50 }; HWND hWnd = GetSafeHwnd(); BOOL b = ::ScreenToClient(hWnd, &point);//屏幕坐标转换为客户区坐标 /* 参数1：HWND hWnd 窗口句柄 参数2：LPPOINT ......