How do you Draw Transparent Image using System.Drawing?

Question

I\'m trying to return a transparent GIF from an .aspx page for display within a web page. I am trying to get the image to have transparency, but I just keep getting Black be

Answer 1

Unfortunately, there is no easy way to create a transparent Gif using a Bitmap object. (See this KB article)

You can alternatively use the PNG format that supports transparency with the code you are using.