>       t;8 = [resHndl&]+_picFrame                        '_picFrame = 2
>       CALL OFFSETRECT(t,-l,-t)
> 
-- snip --

> Question 2)  What is the function of the last line? No part of the
> PICT resource has yet been drawn to a GW or other grafPort. That is,
> there has been no call to SETRECT.  How can the PICT's rect be offset
> if it's not yet realized.  I hope I'm communicating my question
> properly.
> 

The stored coordinates of a PICT don't always start at 0,0 (usually but not 
always). The last line subtracts any non 0 amounts to make sure the coordinates 
start at 0,0 so when you later draw the picture at rect t, it will be where 
you expect it.


Al Staffieri Jr.

AlStaff@...
http://members.aol.com/AlStaff/index.html

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