> On Sep 4, 2015, at 12:30, Dan Friedman wrote:
>
> So, the screen must not be locked, and acceleratedRendering must be off.
> Not sure if you call that a bug or not... but it's working. Hope I don't
> have issues when I try it on Android.
or…
export snapshot from this card to pictVar
Mark,
Ok... I found the combination that works. This assumes you have opened a stack
and acceleratedRendering is enabled:
THIS FAILS (produces a grey image):
lock screen
export snapshot from rect (the rect of this card) to pictVariable as PNG
//do some stuff
unlock screen
THIS FAILS:
export
Mark, Thanks for the help but 'the rect of this card' produced the same
result a grey image. Any other thoughts?
-Dan
> Try doing from rect ... of this card. I think the form you are using is doing
> a screen buffer grab, which doesn't play so well with the OpenGL surface
> accelerated
Try doing from rect ... of this card. I think the form you are using is doing a
screen buffer grab, which doesn't play so well with the OpenGL surface
accelerated rendering uses. The of this card form renders things into an off
screen buffer rather than trying to access the display buffer.
Mark
On either the iPhone simulator or an actual device, if acceleratedRendering is
enabled and I do:
export snapshot from rect (the rect of this card) to pictVariable as PNG
I get a solid grey image. If I never enable acceleratedRendering, then the
image comes out fine. It seems that once
