image size and depth

Dar Scott dsc at
Sun Aug 8 00:37:02 EDT 2004

On Aug 7, 2004, at 8:21 PM, Chipp Walters wrote:

> To my knowledge, you can't set dpi from within REV. But, as dpi is not 
> related to image resolution, you can perhaps actually set it in the 
> binary data file.

This handler might do what you suggest.  It is completely untested, but 
might give an idea of what should be done.

on setJPEGdpi @jpeg, dpi  -- dpi less than 256
   put numToChar(1) into units -- dots per inch
   put numToChar(0) & numToChar(dpi) into encodedDPI
   get units & encodedDPI & encodedDPI
   put it into char 13 to 17 of jpeg
end setJPEGdpi

Dar Scott

More information about the Use-livecode mailing list