Christian,

>Hello,
>
>I'm trying to figure out the width (in pixels or whatever) of a gif file.
>Is there a way to do this?
>
>Thanks for your help in advance.

Try this:

* works for GIF87a
procedure showGifDimensions
lparameters lcFileName

	x = filetostr(lcFileName)

	? "width: ",asc(substr(x, 8,1))*256 + asc(substr(x,7,1))
	? "height: ",asc(substr(x, 10,1))*256 + asc(substr(x,9,1))

endproc

See http://www.dcs.ed.ac.uk/home/mxr/gfx/2d/GIF87a.txt for file specs for GIF87a.

http://www.dcs.ed.ac.uk/home/mxr/gfx/2d-hi.html, look at specs for GIF89a to modify above code to handle both file types...


HTH,