Strange playback in gtk4 window

[tomacaster]

Hi, I am writing a simple video player using libvlcpp (libvlc 3.0.20) and gtkmm4. Unfortunately, I stopped at the very beginning. When I pass the window handle (in the gtk4 get_surface method) the playback is strange, as if no frame is cleared. Stranger still, when I record the screen using some default screen grabber with gnome (ubuntu 24.04) it looks normal. Can anyone tell me what I am doing wrong? Videos and source code are available on my github (branch edge):

https://github.com/tomacaster/GBaric/tr ... _resources

[Rémi Denis-Courmont]

Your window is transparent, which is rarely a good idea for video playback.

[tomacaster]

thank you for the answear, but window is not transparent, it has generic solid color. Secondly, video should have black background, when I'm using Gnome's (or ubuntu) screen recording tool, video looks fine. Maybe you have any other suggestions what could causing that playback?

I'm pasting screenshots from screen recorder



and what I actually see




EDIT: I've pasted screens from github, you should click left mouse button and open it in new tab