File: gpgme.info,  Node: Header,  Next: Building the Source,  Up: Preparation

2.1 Header
==========

All interfaces (data types and functions) of the library are defined in
the header file ‘gpgme.h’.  You must include this in all programs using
the library, either directly or through some other header file, like
this:

     #include 

   The name space of GPGME is ‘gpgme_*’ for function names and data
types and ‘GPGME_*’ for other symbols.  Symbols internal to GPGME take
the form ‘_gpgme_*’ and ‘_GPGME_*’.

   Because GPGME makes use of the GPG Error library, using GPGME will
also use the ‘GPG_ERR_*’ name space directly, and the ‘gpg_err*’,
‘gpg_str*’, and ‘gpgrt_*’ name space indirectly.