It would be very nice if KDevelop supports the Zeal/Dash offline API documentation browser

There are a large numbers of docsets for C / C++ / Boost / Wxwidgets / QT / etc.

Zeal supports dash-plugin:// protocol, and installs handlers automatically on Linux and Windows. On OS X that protocol is handled by Dash. Zeal and Dash share the same set of documentation, just target different platforms.

Thanks in advanced.

Reference:
http://zealdocs.org/
https://kapeli.com/dash_plugins

We had a patch for that recently, https://phabricator.kde.org/D3424
It's not finished though, it has a few things which need to be taken care of. But I like the idea as well.

It would be more useful to create a dash:/ kioslave which outputs HTML, everyone would benefit then.