[openlp-dev] Grabbing projection screen image

nick farrow nickthefarrow at hotmail.com
Sat Dec 8 13:32:22 EST 2018

Thanks Tim., Great facility. How does the device browser know when the page\image has changed?

Also does this work for pots (via libre office)?  I'm guessing it's not image\screen buffer based as  vids are not supported


On 8 Dec 2018 4:33 p.m., Tim and Alison Bentley <Home at trarbentley.net> wrote:

Why not use the web interface which already does this.

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On Sat, 8 Dec 2018 at 16:18, nick farrow <nickthefarrow at hotmail.com<mailto:nickthefarrow at hotmail.com>> wrote:

We used to use easyworship on a win32 machine, and it was quite easy to
find the second screen and grab the rgb data for image rending to the
congregation who had tablets/phones (image on a local web server
rendered to the device browser).

Having just moved to openlp I was after some advice as to the best way
to approach this for a linux/openlp machine?

I was either thinking of capturing the 'live panel' image or trying the
extended screen buffer capture. I know a little python (but years of
experience with c#/c++) so would also welcome some guidance as to the
rough area of the code base to pick up changes in the projected image as
well as the image data itself.

Thanks for reading and even more thanks if you can help!!


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Tim and Alison Bentley
Home at TRARBentley.net

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