k_crysa wrote: I want to be able to fill areas with an undetermined shape As for "undetermined shape", do you have access to the points used to define/enclose the region? If so, you may be able to use the System.Drawing.Drawing2D.GraphicsPath [^] or System.Drawing.Region[^] classes to fill your area. At the bottom of each of these pages is a link to "Members" of each class, so you can see the functions and properties available. I seem to remember there being a simple "Fill()" function, but can't find the reference to it right now. For performance reasons, it's usually best to avoid setting individual pixels if at all possible. I could be wrong, I may be thinking of the FillMode, which might be different that what you're looking for. Anyone know if I'm on the right track here? Hope this helps Dybs