IIRC Blitz uses the freeimage lib for loading images?
An easy fix for you would be to manually read the transparent color info and then set that color as the transparent color when the image is drawn. Make the function once and use it over and over. There is plenty of opensource info on the PNG format that should allow you to do this.
so why ignore the transparent colour information?
Because that is not how DirectDraw works?An easy fix for you would be to manually read the transparent color info and then set that color as the transparent color when the image is drawn. Make the function once and use it over and over. There is plenty of opensource info on the PNG format that should allow you to do this.