Export snapshot question...

Paul Hibbert paul at livecode.org
Sat Nov 7 23:59:45 EST 2015

> On Nov 7, 2015, at 4:46 PM, Paul Dupuis <paul at researchware.com> wrote:
> On 11/7/2015 1:46 PM, Paul Hibbert wrote:
>> Yes this is the expected behaviour. Export snapshot from rect is not be able to take a snapshot of something "off-screen” because it’s not rendered by the display.
>> Export snapshot from rect uses the device's display output to render the image, but if you use Export snapshot of an object (stack, card, group etc.), then the LC engine renders the image, so you can take a snapshot of a stack that is off-screen this way. I hope that makes sense!
> Thank you.
> My problem is that I am using a custom external that places content
> generated by the external in to the stack window (via the windowID of
> the stack that I pass to the external). If I do export snapshot of stack
> xxx, the content placed in the stack window by the external is not
> recognized and included in the resulting image.
> We may have to have the external modified to return an optional image
> that we can place on a stack for printing.

That does sound like a more complex problem. Modifying the external sounds like the best option, unless anybody else has any tricks.


More information about the use-livecode mailing list