This is pvbrowser Qt5-Series:

pvbrowser and pvserver are
a system for industrial process visualization.
ProcessViewBrowser is based on Qt http://www.trolltech.com
It is capable of displaying most Qt widgets and some more.
Normally you will not have to modify pvbrowser.
pvserver defines everything that is displayed within
pvbrowser and how interaction is done.
Your task will be to implement your pvserver.
This is done by creating your pvserver with pvdevelop.
pvb is a registrated Trademark of S. Lehrig

Commands:
pvbrowser
pvdevelop