I've been working on an AD&D2e dungeon master toolkit gui application thingy in FreePascal/Lazarus this week. I'm using the Qt widget set, and documented a few obscure hacky things like loading embedded fonts and qss stylesheets baked into the executable, mapping LCL controls to their Qt equivalent, and accessing the underlying Qt bits of LCL components, etc....
There isn't much info about this on the wiki's (probably because it's hacky AF and not a particularly intended use case) - in any event, have at it:
