Scott,
Thanks for your reply, this was just the information I was looking for.
I'm sorry if my message wasn't completely clear, maybe I was getting a little ahead of
myself. I'd assumed that the image would have to be drawn somewhere, either offscreen
or in a hidden object, so your comments are corrrect.
As always it seems, in Metacard there is a better way of doing it.
In director 7 I used the (as then undocumented) function getPixel to determine the
colour. The rollover image just had to be present in the cast for this to work.
Seemed to work fine but there may well be limitations that I didn't discover.
For those of you who may be interested, here's an example script:
on mouseWithin me
-- check colour in rollover image against mouse location
theH=the mouseH
theV= the mouseV
myLoc = point(theH,theV)
myRect = sprite(spriteNum).rect
ofH = theH-the left of myRect
ofV = theV- the top of myRect
myCol = getPixel(member myParent.myRoll,ofH,ofV)
if myCol <> oldCol then
-- mouse is over coloured area in rollover
oldCol = myCol
theLine = myCol-251
if theLine < 1 then exit -- some sort of error
member("commentTag").text=member(myParent.myComments).text.line[theLine]
end if
end
Rodney
--
--
Rodney Tamblyn
Educational Media group
Higher Education Development Centre, 75 Union Place
University of Otago, PO Box 56, Dunedin, New Zealand
ph +64 3 479 7580 Fax +64 3 479 8362
http://hedc.otago.ac.nz ~ http://rodney.weblogs.com
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