在 C# 中将 WriteableBitmap 转换为 Bitmap

问题描述

有什么方法可以转换WriteableBitmap 到 C# 中的位图?

Is there any way for converting WriteableBitmap to Bitmap in C# ?

推荐答案

实际上非常简单.下面是一些应该工作的代码.我还没有测试过它，我是从头开始写的.

It's pretty straightforward, actually. Here's some code that should work. I haven't tested it and I'm writing it from the top of my head.

private System.Drawing.Bitmap BitmapFromWriteableBitmap(WriteableBitmap writeBmp)
{
  System.Drawing.Bitmap bmp;
  using (MemoryStream outStream = new MemoryStream())
  {
    BitmapEncoder enc = new BmpBitmapEncoder();
    enc.Frames.Add(BitmapFrame.Create((BitmapSource)writeBmp));
    enc.Save(outStream);
    bmp = new System.Drawing.Bitmap(outStream);
  }
  return bmp;
}

WriteableBitmap 继承自 BitmapSource，可以直接保存到流中.然后，您从此流构建位图.

The WriteableBitmap inherits from a BitmapSource, which can be saved directly to a stream. Then, you build a Bitmap from this stream.

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