Hi,
please do not use numToChar in version 7.0 and up for image manipulation, use
numToByte or byteToNum
NumToChar is deprecated. It might work but is horribly slow.
along the lines of Mike's example
--------------------------
on mouseUp
local tAlphaData, tTransparent, tHalfTransparent
local tImgData, tCollect, tLength
put the imageData of image 1 into tImgData
-- not needed here but if you want to modify existing AD
put the alphaData of image 1 into tAlphaData
put numToByte(0) into tTransparent
put numToByte(127) into tHalfTransparent
put the width of image 1 * the height of image 1 into tLength
repeat tLength
-- put tTransparent after tCollect
put tHalfTransparent after tCollect
end repeat
-- in LC 9 you have to set imagedata again explicitly
set the imageData of image 1 to tImgData
set the alphaData of image 1 to tCollect
end mouseUp
------------
Kind regards
Bernd
_______________________________________________
use-livecode mailing list
[email protected]
Please visit this url to subscribe, unsubscribe and manage your subscription
preferences:
http://lists.runrev.com/mailman/listinfo/use-livecode
