I'd like to write a widget to substitute the player with mplayer (see https://www.mplayerhq.hu/design7/info.html )
Mplayer is cross platform, reads quite all formats and very easy to control (see https://www.mplayerhq.hu/DOCS/tech/slave.txt), and moreover on Linux the standard livecode player can't stop.

I started my work on https://github.com/angerangel/playerwidget
My problem is there is no guide on Livecode builder, so I still can't understand all canvas and text stuff at all.
Your valuable help would be for a complete guide on widgets or you can work/fork on github link and edit the lcb file. You can edit the lcb file directly from your browser.