Install libgpgmepp-doc by entering the following commands in the terminal:
sudo apt update sudo apt install libgpgmepp-doc
Description:
C++ and Qt bindings for GPGME (documentation for developers)
GpgME++ (aka GpgMEpp) is a C++ wrapper (or C++ bindings) for the GnuPG project's GPGME (GnuPG Made Easy) library. . QGpgME is a library that provides GPGME integration with QEventLoop and some Qt datatypes (e.g. QByteArray). . This package contains documentation for developers describing how to use these packages.
Homepage: https://www.gnupg.org/related_software/gpgme/
Version: 1.10.0-1ubuntu1
Section: doc