Before call other library functions the GiD_PostInit funcion must be called (and GiD_PostDone when finishing its use)

There are two collection of functions: multi-file and single-file

• GiD_f* functions with the 'f' letter, and an extra attribute for the file handler (new interface from library version 2.0)
• GiD_* functions without 'f' letter. There is an implicit single file (old interface)

The HDF5 format (GiD_fOpenPostResultFile) is only available with old single-file style, the multiple-file interface will be implemented in future versions.