A VB StdPicture object can be passed to the SavePicture method in order to save it as
a bitmap file on disk. However, this method will usually save bitmaps at the system colour depth,
and you cannot specify whether you want to save to a different colour depth.
This sample shows how to colour reduce a DIBSection object using
two different techniques and save that to a bitmap file at the correct colour depth.
The Bitmap file format, unlike compressed formats such as PNG and GIF, is straightforward: