System.Drawing.Image 流 C#
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System.Drawing.Image to stream C#
提问by Linda
I have a System.Drawing.Imagein 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?
System.Drawing.Image我的程序中有一个。该文件不在其保存在内存中的文件系统上。我需要从中创建一个流。我该怎么做呢？
采纳答案by JaredPar
Try the following:
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;
}
Then you can use the following:
然后您可以使用以下内容：
var stream = myImage.ToStream(ImageFormat.Gif);
Replace GIF with whatever format is appropriate for your scenario.
将 GIF 替换为适合您场景的任何格式。
回答by John Gietzen
Use a memory stream
使用内存流
using(MemoryStream ms = new MemoryStream())
{
image.Save(ms, ...);
return ms.ToArray();
}
