如何采取与单C＃屏幕截图？ [英] How to take a screenshot with Mono C#?

问题描述

我试图用使用代码获得单C＃中的截图，但我得到一个System.NotImplementedException当我打电话的 CopyFromScreen 。我的代码工作与.NET，所以有越来越使​​用单截图的替代方法？

I'm trying to use use code get a screenshot in Mono C# but I'm getting a System.NotImplementedException when I call CopyFromScreen. My code works with .NET, so is there an alternate way of getting a screenshot using Mono?

Bitmap bitmap = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height);
Graphics graphics = Graphics.FromImage(bitmap as Image);
graphics.CopyFromScreen(0, 0, 0, 0, bitmap.Size);
System.IO.MemoryStream memoryStream = new System.IO.MemoryStream();
bitmap.Save(memoryStream, imageFormat);
bitmap.Save(@"\tmp\screenshot.png", ImageFormat.Png);

我使用单声道JIT编译器版本2.4.2.3（Debian的2.4.2.3 + DFSG-2）

I am using Mono JIT compiler version 2.4.2.3 (Debian 2.4.2.3+dfsg-2)

更新：单不能采取截图。伤心。跛。

UPDATE: Mono cannot take screenshots. Sad. Lame.

推荐答案

我想另一种方法是使用GTK＃得到一个屏幕截图。您将需要创建GTK＃支持单项目，之后下面的代码应该执行：

I guess an alternative would be using gtk# to get a screenshot. You would need to create a mono project with GTK# support, after that following code should execute:

Gdk.Window window = Gdk.Global.DefaultRootWindow;
if (window!=null)
{           
    Gdk.Pixbuf pixBuf = new Gdk.Pixbuf(Gdk.Colorspace.Rgb, false, 8, 
                                       window.Screen.Width, window.Screen.Height);          
    pixBuf.GetFromDrawable(window, Gdk.Colormap.System, 0, 0, 0, 0, 
                           window.Screen.Width, window.Screen.Height);          
    pixBuf.ScaleSimple(400, 300, Gdk.InterpType.Bilinear);
    pixBuf.Save("screenshot0.jpeg", "jpeg");
}

您也可以使用P\Invoke并直接调用GTK的功能。

you could also use P\Invoke and call GTK functions directly.

希望这可以帮助，至于

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