Hello:<br> I am looking to write just a simple drawing program that would load an image, and then allow me to draw and erase on top of it. I looked at the scribble example and it has basically everything I need except the ability to erase any marks I've made over the source image. What would be the best way to erase any drawn lines I've created over the image? I tried setting the image to ARGB and then switching the pen to (0,0,0,0) but that draws nothing (I was hoping it would draw 0,0,0,0 instead of adding color*alpha). Is there a way to use the source image as my pen color (basically painting with a texture)? Thanks for any help!<br>
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