WinForm:
int iActulaWidth = Screen.PrimaryScreen.Bounds.Width;
int iActulaHeight = Screen.PrimaryScreen.Bounds.Height ;
WPF下的:
double dWidth = System.Windows.SystemParameters.PrimaryScreenWidth;
double dHeight = System.Windows.SystemParameters.PrimaryScreenHeight;
double dWidth2 = ActualWidth; //获取此元素的呈现宽度。若此元素时全屏的,则可以获得屏幕大小(-_-!!!)
double dHeight2 = ActualHeight; //获取此元素的呈现高度。