Not that I know of however since v16 there has been the GET PICTURE FORMATS 
command:
https://doc.4d.com/4Dv17/4D/17.2/GET-PICTURE-FORMATS.301-4387029.en.html
but that doesn't directly help you for v13 or v15.

So, I thought about it some more and _maybe_ could use PICTURE CODEC LIST and 
CONVERT PICTURE:
https://doc.4d.com/4Dv17/4D/17.2/PICTURE-CODEC-LIST.301-4387018.en.html
https://doc.4d.com/4Dv17/4D/17.2/CONVERT-PICTURE.301-4387025.en.html

So my thinking is...
Take an example picture and apply each codec returned by PICTURE CODEC LIST to 
it in turn. For each converted picture compare it with the original - if it's 
the same then you have identified its codec.

This is only theoretical as the act of converting the picture when the original 
and new codecs are identical may actually change the underlying picture in some 
way anyway thus rendering this idea useless. Maybe worth a try though?

Regards,
 
Narinder Chandi,
ToolBox Systems Ltd.
-- 

-----Original Message-----
From: 4D_Tech <[email protected]> on behalf of 4D Tech Mailing List 
<[email protected]>
Reply-To: 4D Tech Mailing List <[email protected]>
Date: Monday, 19 August 2019 at 22:33
To: 4D Tech Mailing List <[email protected]>
Cc: Chip Scheide <[email protected]>
Subject: PICTs

    In v13, or v15 is there a way to tell is a picture in the library is in 
    PICT, or other format?
    
    Thanks
    Chip
    ---------------
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