从C#代码以编程方式控制扩展监视器 [英] control extended monitor programatically from c# code

问题描述

请控制我的扩展显示器，并在主显示器上显示两个不同的应用程序，在外部显示器上显示另一个应用程序，我该如何使用c#代码执行此操作，我需要在主显示器上显示特定的窗口，并在主显示器上显示另一个窗口在Advanced

Please I need to control my extended monitor and to show two different application one on main and another on the external monitor, how can i do it using c# code I need to show specific window on the main , and another one on the extended thank you in advanced

推荐答案

您好，谢谢.
这是将表单移动到第一个非主屏幕上的扩展方法.
它返回一个 Nullable< bool> ，以告知表单是否已移动，未移动或是否发生错误.

Hi there.

This is an extension method to move a form onto the first non-primary screen.
It returns a Nullable<bool> to tell whether the form have been moved, not moved or an error did occur.

namespace System.Windows.Forms
{
    public static class FormExtensions
    {
        public static bool? SetScreenToFirstNonPrimary(this Form self)
        {
            try
            {
                // Retrieves the collection of available screens (monitors)
                var aScreens = Screen.AllScreens;
                // If count is not greater than 1 then exit
                if (aScreens.Length <= 1)
                    return false; // screen kept original

                // Saves current screen reference
                var screenOld = Screen.FromControl(self);
                foreach (var screen in aScreens)
                {
                    // Skips primary and current screen
                    if (screen.Primary || screen.Equals(screenOld))
                        continue;
    
                    var boundsScreen = screen.Bounds;
    
                    var oldState = self.WindowState;
                    // If form is currently maximized ...
                    if (oldState == FormWindowState.Maximized)
                    {
                        self.WindowState = FormWindowState.Normal;
                        self.StartPosition = FormStartPosition.Manual;
                        self.Location = boundsScreen.Location;
                        self.WindowState = FormWindowState.Maximized;
                    }
                    else
                    {
                        self.StartPosition = FormStartPosition.Manual;
                        // Center into new screen
			var sizeGaps = boundsScreen.Size - self.Size;
			var x = boundsScreen.Left + (sizeGaps.Width / 2);
			var y = boundsScreen.Top + (sizeGaps.Height / 2);
                        self.Location = new Point(x, y);
                    }

                    return true; // screen has been changed
                }
        
                return false; // screen kept original
            }
            catch (Exception ex)
            {
                // process exception ex
                // ...

                return null; // error occurred
            }
        }
    }
}

您可以在 InitializeComponent(); 之后作为
从窗体的构造函数调用它

You can call it from the form''s constructor just after InitializeComponent(); as

this.SetScreenToFirstNonPrimary();

这篇关于从C#代码以编程方式控制扩展监视器的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！