从 WPF 应用程序窗口获取位图? [英] Get a Bitmap from a WPF application window?

问题描述

Winforms System.Windows.Forms.Control 类有一个实例方法DrawToBitmap"，我认为它在各种情况下都非常有用.我想知道是否有从 WPF 应用程序获取 System.Drawing.Bitmap 的等效方法?

The Winforms System.Windows.Forms.Control class has an instance method "DrawToBitmap" which I think is very useful in a variety of circumstances. I'm wondering if there's an equivalent way of getting a System.Drawing.Bitmap from a WPF application?

我意识到我可以做一些 P/Invoke 的东西来获取应用程序窗口，但是我不喜欢这样，因为它不能很好地适应 64 位转换，并且不允许我只渲染子控件，就像 DrawToBitmap 一样.

I realize I could do some P/Invoke stuff to just get the application window, however I don't like this because it doesn't accomodate the 64bit transition very well, and doesn't let me render sub-controls only, as DrawToBitmap does.

谢谢，理查德

推荐答案

Use RenderTargetBitmap as on MSDN

Use RenderTargetBitmap as on MSDN

RenderTargetBitmap bitmap = new RenderTargetBitmap(width, height, 96, 96, PixelFormats.Pbgra32);
bitmap.Render(this.YourVisualControlNameGoesHere); 

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