Convert transparent PNG on import?
Marty Knapp
martyknappster at gmail.com
Tue Feb 3 12:28:05 EST 2015
Thank Bernd, I'll give that a try. Detecting mouseClicks or other mouse
related functions aren't an issue for me in this case - it's that
printing images with transparency on Windows can really come out strange
and in some cases cause printing to fail.
Marty K
> Hi Marty,
>
> would it help if the transparent parts where just a little non-transparent?
> hardly noticeble
>
> You would set all 0 to 1 in alphaData, the rest is unchanged.
>
> -------------------------------------------
> on mouseUp
> put the alphaData of image 1 into tAlpha
> put numToByte(0) into tNull
> put numToByte(1) into tOne
> repeat for each byte anAlpha in tAlpha
> if anAlpha = tNull then
> put tOne after tCollect
> else
> put anAlpha after tCollect
> end if
> end repeat
> set the alphaData of image 1 to tCollect
> end mouseUp
> ---------------------------------------------
>
> this is fairly fast, works also in 7.x.x
>
> Once you change 0 to 1 in alphaData the translucent parts of the png receive
> mouseClicks etc. You must be aware of that.
>
> Kind regards
> Bernd
>
>
>
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