color probe (at a point)
Lynch, Jonathan
bnz2 at cdc.gov
Fri Jul 29 14:02:05 EDT 2005
Here is a function that will do this for you:
function pointcolor pPoint
put item 1 of pPoint into tL
put item 2 of pPoint into tT
put tL + 10 into tR
put tT +10 into tB
put tL,tT,tR,tB into tRect
export snapshot from rect tRect to tImage as GIF
put "myImage" & the milliseconds into tMyImage
create invisible image tMyImage
set the width of image tMyImage to 10
set the height of image tMyImage to 10
put tImage into image tMyImage
put the imagedata of image tMyImage into tData
delete image tMyImage
put chartonum(char 2 of tData),chartonum(char 3 of
tData),chartonum(char 4 of tData) into tColor
return tColor
end pointcolor
-----Original Message-----
From: use-revolution-bounces at lists.runrev.com
[mailto:use-revolution-bounces at lists.runrev.com] On Behalf Of Ronald
Swartz
Sent: Friday, July 29, 2005 12:15 PM
To: use-revolution at lists.runrev.com
Subject: color probe (at a point)
How would one determine (or return) the color at a point on the screen,
under script control of course. I would like it to be something like:
get the tcolor at 340,230 (where I just made up the name "tcolor.")
Is there any easy way to do this. I am working on something which
requires me to poll the points in the neighborhood of a screen point
and cannot see anything in revolution which would provide that tool.
Help would be appreciated.
Ron Swartz
tetraron at comcast.net
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