I don't think it's DRM since the OP also said, " Up to now, this issue happens only at 2 customers, on all other Win 10 machines, taking a video screenshot works fine."
I'll place my 2 cent bet on the video card. Look for a common thread like - the fails happening on Nvidia, ATI, or built-in graphics controllers. ~Roger On Jul 11, 2017 7:12 AM, "Paul Dupuis via use-livecode" < use-livecode@lists.runrev.com> wrote: > My guess is that it could be Digital Rights Management related? > > If you can screenshot a DRM protected video then, in principle, you > could screenshot every frame and encode the frames back into a DRM-free > version of the video. Do you know what the videos that had the problem > were? > > > On 7/11/2017 3:20 AM, Tiemo Hollmann TB via use-livecode wrote: > > Hello, > > > > LC 8.1.4, Windows 10 > > > > I am using the standard LC videoPayer (directShow) to play H.264 mp4 > videos. > > One essential feature of my program is, that the user can take > screenshots > > from the video, edit and save them. > > > > Today I got the second customer call with a Win 10 machine, who can't > take > > screenshots from my LC videos. The video screen is just black on the > taken > > screenshot. This issue does not only happen with the build in LiveCode > > screenshot feature, but also, if they take a screenshot with the windows > > print key or other screenshot tools. > > > > Up to now, this issue happens only at 2 customers, on all other Win 10 > > machines, taking a video screenshot works fine. The alwaysBuffer of the > > videoPlayer is set to false (setting it to true, I don't see any video > > playing) I also checked to disable the Kaspersky AV on the client > computer > > (Kaspersky has a feature to prevent screenshots), but without success. > Btw. > > the old version of my program with the quicktime player works fine on > these > > machines. > > > > I googled a lot, but didn't found any related issues in the net, so I > > assume, it must be related to the LiveCode implementation of the > directShow > > videoPlayer. But in combination with any special hardware or software > > setting on these two computers. > > > > Has anybody already experienced similar issues or has any shot in the > dark, > > what system options, drivers, other tools in combination with LiveCode > could > > have an influence on taking a screenshot? > > > > Any idea, what I could check for is welcome > > > > Tiemo > > > > > > > > > > > > _______________________________________________ > > use-livecode mailing list > > use-livecode@lists.runrev.com > > Please visit this url to subscribe, unsubscribe and manage your > subscription preferences: > > http://lists.runrev.com/mailman/listinfo/use-livecode > > > > > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your > subscription preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode > _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
