C# WinFrom分屏显示
2020/2/12
WinForm 的实现办法：
利用WinForm中的Screen类，即可比较方便地实现多窗体分别在多个屏幕上显示。
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获取当前系统连接的屏幕数量： Screen.AllScreens.Count();
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获取当前屏幕的名称：string CurrentScreenName = Screen.FromControl(this).DeviceName;
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获取当前屏幕对象：Screen CurrentScreen = Screen.FromControl(this);
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获取当前鼠标所在的屏幕：Screen CurrentScreen = Screen.FromPoint(new Point(Cursor.Position.X, Cursor.Position.Y));
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让窗体在第2个屏幕上显示：
this.Left = ((Screen.AllScreens[1].Bounds.Width - this.Width) / 2);
this.Top = ((Screen.AllScreens[1].Bounds.Height - this.Height) / 2);
把任何窗体显示在任何屏幕的方法：
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protected void Form1_OnLoad(...) {
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showOnMonitor(1);
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}
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private void showOnMonitor(int showOnMonitor)
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{
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Screen[] sc;
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sc = Screen.AllScreens;
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if (showOnMonitor >= sc.Length) {
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showOnMonitor = 0;
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}
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this.StartPosition = FormStartPosition.Manual;
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this.Location = new Point(sc[showOnMonitor].Bounds.Left, sc[showOnMonitor].Bounds.Top);
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this.WindowState = FormWindowState.Normal;
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this.WindowState = FormWindowState.Maximized;
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}
对WPF窗体来说，只要简单的更改即可：
首先要添加对 System.Windows.Forms 和 System.Drawing 的引用
简单的参考代码如下：
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protected override void OnStartup(StartupEventArgs e)
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{
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base.OnStartup(e);
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Window1 w1 = new Window1();
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Window2 w2 = new Window2();
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Screen s1 = Screen.AllScreens[0];
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Screen s2 = Screen.AllScreens[1];
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Rectangle r1 = s1.WorkingArea;
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Rectangle r2 = s2.WorkingArea;
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w1.Top = r1.Top;
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w1.Left = r1.Left;
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w2.Top = r2.Top;
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w2.Left = r2.Left;
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w1.Show();
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w2.Show();
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w2.Owner = w1;
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}
注意：一定应该在窗体加载前，判断所要显示的屏幕是否存在，否则会报错！