how do you edit a large image?

BlitzMax Forums/BlitzMax Programming/how do you edit a large image?

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What i am trying to do is re render thumbnails of alpha textures to a white background (basically replace the alpha channel with white)

If pixmaps dont support alpha, what are the functions for (see help for create pixmap) Bit confusing if u ask me :O

One question, is there a way of creating a 2d array of alpha values from a png? if i can do this i can prehaps re-render them by mixing the color.