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Import Questions
(03-14-2017, 05:22 PM)Zuberman Wrote: Does using PNGs prevent the black screen issue completely? That is really interesting as it points to a problem in one of the PDF libraries, but users have experienced it using both PDF libraries, which is why I thought the problem was either device specific or in my rendering engine somewhere. I'm looking to switch to a different PDF library, so I'd be curious if that could potentially prevent the black screen issues.

For what it's worth, I have now had 2 instances of the black screen issue using PNGs.  The most recent one was on stage, and came in Act 2 on the closing night of "Beauty and the Beast".  That caused great panic and consternation, but I had gone through rehearsals and 5 previous performances without an issue.

It seems that the problem must be related to a resource shortage.  (Garbage collection delay?)  If I kill the app and restart it every few days, it doesn't happen at all.  Sometimes, I can induce the problem if I scroll quickly forward and backward.  It might be possible to set up an automated test by flipping pages randomly and looking for a big black square in the resulting bitmap.

Messages In This Thread
Import Questions - by timrprobocom - 03-14-2017, 02:39 PM
RE: Import Questions - by Zubersoft - 03-14-2017, 05:22 PM
RE: Import Questions - by timrprobocom - 05-13-2017, 09:09 AM
RE: Import Questions - by timrprobocom - 03-15-2017, 02:54 AM
RE: Import Questions - by lionking - 03-15-2017, 04:33 AM
RE: Import Questions - by Zubersoft - 03-15-2017, 05:11 PM
RE: Import Questions - by Zubersoft - 05-13-2017, 05:25 PM

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