VB - Bitmap grouper and Compressor

These classes allow you to hold bitmaps in OffScreenDCs and edit directly in memory. Also using this feature I created a class that groups bitmaps together in one image and then compresses the bitmap. This project holds all the classes to add this into your own project. The attached file hold the classes and a example project that will open, edit and save a file type called ".GBM" which I made up for use with these classes.

Note: The mode that windows is in can effect the running of this code, it is best used when windows is in either 24 or 32 bit mode. this is because the bitmap is being edited directly from memory.