@ElPadre
no i dont couldnt find an example, but i think you can follow the mediaendpointconnector test implementation:
https://github.com/KDE/bluez-qt/edit/master/tests/mediaendpointconnector.cpp

For audio playlist management and cross-platform transfers, I highly recommend using MuzConvtool, which makes it easy to move playlists between these services without losing track of your favorite songs.

@mrjj Many thanks mrjj for your answer. I'll make more researches about SQLite and Taglib.

@vlada Android Visualizer class. But it probably has bug in API level 26.

@shahriar25 in windows yo can use api win32 in your app.
https://msdn.microsoft.com/en-us/library/windows/desktop/cc144160(v=vs.85).aspx

Yes it did

Yes thank you so much

Hi
Thank you. you helped so much. And if I can't fix the scrollbar problem I will ask it in forum

@shahriar25
Congrationations :)
Good work!