How estimate width & length of unknown pictures?

[jlorenz1 0]

I'm trying to create thumbnails in a GUI with pictures in different width and length? How can I estimate width and length of a picture-file?

Can I do this with Commands of AutoIt or must I use comspec? And if yes, how? Thanks johannes from germany

[Zedna 197]

Search for get_image_size.au3 from Lazycat

[jlorenz1 0]

get_image_size.au3 works excellent - a little step for a programmer, but a big step for the mankind Johannes