compare bitmaps

[sdlangers]

Hi again,

ok - FINAL bitmap question i promise!!

does anyone know a quick way of comparing two bitmaps (say 10x10) to see if they are the same picture.

i know i can loop through the pixels and check them, but hopefully there is a more efficient way?

thanks

 

[Divil]

If you have to compare them, then checking pixel by pixel is going to have to be how you do it. This doesnt necessarily have to be slow; if you use unsafe code in C# to get at the bitmapdata of both of them it ought to be lightning fast.