Creating IStream object in C#

Question

I\'m writing a project and working with another party DLL.

Function from their DLL wants an IStream object to save result, but I can\'t understand how to create an I

Answer 1

Here is a managed implementation from Microsoft now that .Net is more open source:

https://referencesource.microsoft.com/#PresentationFramework/src/Framework/MS/Internal/IO/Packaging/managedIStream.cs