Starting with QTVCP - need a little help.

Hi all,
I need a little help, it's about QTVCP surfaces. I'll take QtDragon as an example. The graphical user interface is created with the QtDesigner, the file is called qtdragon.ui. This includes the handler file qtdragon_handler.py
What I have not yet understood is how these two files work together? How are the functions in qtdragon_handler.py called? Are there any documents or help where I can read and understand this? Is there a kind of “framework” of the handler file that you can build on?
I know there are a lot of questions. It's not easy to get started with QTVCP.
Thank you very much.
Peter

 

Have you seen this?
linuxcnc.org/docs/devel/html/gui/qtvcp.html

Hi Chris,
yes, it is now. I'm going to start a few experiments now. Thank you very much for your tip!

Peter