1             if (!SCREEN_STATE)
 2             {
 3                 if (System.Windows.Forms.Screen.AllScreens.Count() > 1)
 4                 {
 5                     System.Windows.Forms.Screen s2 = System.Windows.Forms.Screen.AllScreens[1];
 6                     System.Drawing.Rectangle r2 = s2.WorkingArea;
 7                     bigScreen = new BigScreen();
 8 
 9                     bigScreen.GridMainContent.Children.Clear();
10                     TeamDataPage s = new TeamDataPage();
11                     bigScreen.GridMainContent.Children.Add(s);
12 
13                     bigScreen.Top = r2.Top;
14                     bigScreen.Left = r2.Left;
15                     bigScreen.Width = r2.Width;
16                     bigScreen.Height = r2.Height;
17                     bigScreen.Show();
18                     bigScreen.WindowState = WindowState.Maximized;
19                     btn_BigScreen.Content = "    停止显示   ";
20                     SCREEN_STATE = true;
21                 }
22                 else
23                 {
24                     MessageBox.Show("找不到扩展屏幕!");
25                 }
26             }
27             else
28             {
29                 btn_BigScreen.Content = "    大屏显示   ";
30                 if (bigScreen != null)
31                     bigScreen.Close();
32 
33                 SCREEN_STATE = false;
34             }