AW: taking a screenshot fails - video experience needed

[Tiemo Hollmann TB]

Hi Bob,

what do you mean with "their AV software"? the drivers of their video
adapter? Or do you think of any other?
And what do you mean with "feature"? to suppress the ability of making
screenshots in general? Ever heard of something like this?

Tiemo


-----Ursprüngliche Nachricht-----
Von: use-livecode [mailto:use-livecode-bounces at lists.runrev.com] Im Auftrag
von Bob Sneidar via use-livecode
Gesendet: Donnerstag, 20. April 2017 18:11
An: How to use LiveCode <use-livecode at lists.runrev.com>
Cc: Bob Sneidar <bobsneidar at iotecdigital.com>
Betreff: Re: taking a screenshot fails - video experience needed

It may be a feature of their AV software.

Bob S


On Apr 20, 2017, at 05:03 , Tiemo Hollmann TB via use-livecode
<use-livecode at lists.runrev.com<mailto:use-livecode at lists.runrev.com>> wrote:

Hello,

A vital part of my program is taking screenshots (snapshot) from videos,
played in my program (DirectShow videos, LC 8.1.4, Windows 10)

On a customer machine the snapshot doesn't work at all, it takes only a
black screen. For my limited understanding this is related to the video/
screen buffer. I tried both LiveCode options with alwaysBuffer of my
videoPlayer = true/false. Same result, black screen. This issue seems
perhaps not to be only a LiveCode issue because creating a screenshot with
other apps also only get a black screen from the video. In an older version
of my program with QT videos and older machines (up to win 7) I also
experienced this behavior on some rare machines and I found that turning the
hardware acceleration of the video card to off fixed this issue. But since
windows 10 there isn't anymore this option "hardware acceleration" in the
properties of the video adapter, which you could turn off and I didn't found
any comparable option.

Has anybody perhaps any idea, what I could look for changing the video
buffer behavior inside LiveCode or the system?

Thanks

Tiemo

_______________________________________________
use-livecode mailing list
use-livecode at lists.runrev.com
Please visit this url to subscribe, unsubscribe and manage your subscription
preferences:
http://lists.runrev.com/mailman/listinfo/use-livecode