C# 获取屏幕分辨率

System.Windows.Forms.Screen screen = Screen.PrimaryScreen;      
    System.Drawing.Rectangle rct = screen.Bounds;      
    this.label1.Text = rct.Height.ToString();//高度      
    this.label2.Tex t= rct.Width.ToString();//宽度

WPF：

double   height   =   SystemParameters.PrimaryScreenHeight;
double   width   =   SystemParameters.PrimaryScreenWidth;