Install libdbusmenu-qt5-doc by entering the following commands in the terminal:
sudo apt update sudo apt install libdbusmenu-qt5-doc
Description:
Qt implementation of the DBusMenu protocol (documentation)
This library provides a Qt implementation of the DBusMenu protocol. . The DBusMenu protocol makes it possible for applications to export and import their menus over D-Bus. . This package provides API documentation in HTML format.
Homepage: https://launchpad.net/libdbusmenu-qt
Version: 0.9.3+16.04.20160218-1ubuntu1
Section: universe/doc