在双监视器WPF C＃中捕获活动屏幕 [英] Capture active screen in dual monitor WPF C#

问题描述

请帮我从双显示器上找到有源显示器屏幕。



i尝试下面的代码，我可以从中获取显示器屏幕的截图。



但是无法找到哪个是活动屏幕。



类似于alt + prtsc，它提供了有效的屏幕截图。



我尝试了什么：

Hi,

Please help me to find the active monitor screen from dual monitor.

i tried the below code from which i can get the screenshot of both the monitor screen.

But could not able to find which is active screen.

similar to alt+prtsc which gives active screenshot.

What I have tried:

Thread thread = new Thread(() =>
                {
                    // Determine the size of the "virtual screen", which includes all monitors.
                    int screenLeft = SystemInformation.VirtualScreen.Left;
                    int screenTop = SystemInformation.VirtualScreen.Top;
                    int screenWidth = SystemInformation.VirtualScreen.Width;
                    int screenHeight = SystemInformation.VirtualScreen.Height;

                    // Create a bitmap of the appropriate size to receive the screenshot.
                    using (Bitmap bmp = new Bitmap(screenWidth, screenHeight))
                    {
                        // Draw the screenshot into our bitmap.
                        using (Graphics g = Graphics.FromImage(bmp))
                        {
                            g.CopyFromScreen(screenLeft, screenTop, 0, 0, bmp.Size);
                        }

                        // Do something with the Bitmap here, like save it to a file:
                        bmp.Save("D:/temp.png", ImageFormat.Png);
                    }
                });
                thread.SetApartmentState(ApartmentState.STA);
                thread.Start();

推荐答案

阅读： c＃ - 第二个屏幕截图 - Stack Overflow [ ^ ]

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