为System.Drawing.Image流C＃ [英] System.Drawing.Image to stream C#

问题描述

我在我的程序有一个为System.Drawing.Image 。该文件是不是在内存中被关押在文件系统上。我需要从它创建一个流。我怎么会去这样做呢？

I have a System.Drawing.Image in my program. The file is not on the file system it is being held in memory. I need to create a stream from it. How would I go about doing this?

推荐答案

请尝试以下操作：

public static Stream ToStream(this Image image, ImageFormat format) {
  var stream = new System.IO.MemoryStream();
  image.Save(stream, format);
  stream.Position = 0;
  return stream;
}

然后你可以使用以下内容：

Then you can use the following:

var stream = myImage.ToStream(ImageFormat.Gif);

替换任何格式适合您的方案GIF。

Replace GIF with whatever format is appropriate for your scenario.

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