Hi all,
im looking for the fastest way to compare two picture-Files (e.g. bmp or jpg) with Perl. Is there a perl-specific command to realize this or do perl use only the normal operating-systems commands like "comp" or like. I only want to know is the file different or not. So may be the fastest command would be if the command stops immediately the comparison on the first difference and give immediately the result back.
I use Windows XP Pro and first i tried it with the XP- command "comp" (Code: `comp file1 file2`;). But the comp command always ask interactively for furter compare and i didnt find a way to avoid this. But bar of this is there a good perlcommand to do this work?
Thanks for any answer! Best regards michbach.

Ok, ive seen what in my mind is so clearly is in my question so ambiguous! Now here exact what i do. I make a screenshot of a certain desktop area and saved it as an jpg-file with name e.g. tested_1.jpg. After i while (e.g. 1 day) i make a screenshot again of the same desktop area and save it as an jpg-file with name tested_2.jpg. Now i want to know has file1 the same content as file2. So if the content the same nothing has changes on this desktop area! Is the content differnt something must changed on the desktop area. And i looking for the fastest was to do this under Perl. I dont want to bind in C-code or like. I hope i have declard it a littel bit better what i want. At last i wanna say thanks to all responders!

In reply to Fast way to compare two picture-files by michbach

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