ExtFloodFill in VB.NET

The best way to flood fill is to use ExtFloodFill. Absolutely vital functionality for graphics applications. Trouble is it doesn't lend itself for use with .NET. Your only alternative to ExtFloodFill is to use recursive routines to scan an image and change pixels colors appropriately. This can be quite inefficient and take an unreasonable amount of time to perform. There was quite a good example last month here on PSC and I've seen a good one by Bob Powel. Searching on the intenet for ExtFloodFill and .NET will return many examples of people wanting to use ExtFloodFill but I have yet to see a solution. So here it is.