Save MetaFile to Stream and back again

问题

I need to store a MetaFile into a Stream and create a new Metafile with the same stream.

I have the following code but it throws an excetpion:

string tempPath = Path.GetTempFileName();
MyMetaFile.Save(tempPath);
var stream = new MemoryStream(File.ReadAllBytes(tempPath));
File.Delete(tempPath);
var newMetafile = new Metafile(stream);  // here the exception

The exception message says: ExternalException: A generic error occured in GDI+.

I tried also to use the method Image.Save(stream, ImageFormat.Emf) but it throws an exception too.

How can I fix this problem?

来源：https://stackoverflow.com/questions/22426019/save-metafile-to-stream-and-back-again