Thanks a lot!
the manual said:
"For speed reasons this function is not safeguarded. Exceeding the bmap size (for instance by redefining d3d_texlimit) will lead to an engine crash."
that's what I meant, sorry.
But I don't think that'll be a problem for me, because I'll know the pixel size.
and your code goes around that problem with the pic size as well, cause you check the bmap's size...:)

I'll try this method and let you know what I come up with!