export snapshot on iOS results in black image file

Chipp Walters chipp at chipp.com
Sun Jul 15 23:53:28 EDT 2012


Here's what worked for me on Android:

   set the jpegQuality to 100
   put specialFolderPath("documents") & "/temp.jpg" into tPath
   export snapshot from group "tempGrp" to file tPath as JPEG

On Sun, Jul 15, 2012 at 10:43 PM, Thomas McGrath III <mcgrath3 at mac.com>wrote:

> Nope, no black regions and I did try the objet version as well as a bunch
> of other varieties I also tried (0,0,200,200) as well. No luck.
>
> -- Tom McGrath III
> http://lazyriver.on-rev.com
> 3mcgrath at comcast.net
>
> On Jul 15, 2012, at 10:35 PM, Scott Rossi wrote:
>
> > Do you have any black regions displayed on your screen?  Because I'm
> pretty
> > sure that, with your current script, you're capturing global screen
> > coordinates, even though you've specified an object's rect.  You either
> need
> > to use the snapshot form that references a specific object, or convert
> your
> > rect to local (stack) coordinates.
> >
> > Regards,
> >
> > Scott Rossi
> > Creative Director
> > Tactile Media, UX Design
> >
> >
> >
> > Recently, Thomas McGrath III wrote:
> >
> >> Has anyone run into an issue where exporting a snapshot on iOS results
> in a
> >> black image file?
> >>
> >> Here is the very simple code I am using:
> >>   put specialFolderPath("documents") into tFolder
> >>   put the rect of image "image" into tRect
> >>   export snapshot from rect tRect to file (tFolder&"/test.jpg") as JPEG
> >>
> >> With document sharing on I get a black image test.jpg in iTunes and
> also if I
> >> try to email it etc. it is still just a black image.
> >>
> >> Thanks
> >>
> >>
> >> -- Tom McGrath III
> >> http://lazyriver.on-rev.com
> >> 3mcgrath at comcast.net
> >>
> >>
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-- 
Chipp Walters
CEO, Altuit, Inc.



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