Install libglibmm-2.4-doc by entering the following commands in the terminal:
sudo apt update sudo apt install libglibmm-2.4-doc
Description:
C++ wrapper for the GLib toolkit (documentation)
GLib is a low-level general-purpose library used mainly by GTK+/GNOME applications, but is useful for other programs as well. glibmm is the C++ wrapper for GLib. . This package contains reference documentation and examples.
Homepage: http://www.gtkmm.org/
Version: 2.56.0-1
Section: doc