I want to be able to quikely run through all the pixels in an image/canvas so I can change them, or do whatever I want, and at the moment, all I do is:
for x:=0 to 50 do begin
for y:=0 to 50 do begin
...but this goes very slowly. Is there a faster method? I don't know if this is very hard, but will raise the points if it is worth it.