Address of the argv parameter of main(), or NULL. Any options understood by GTK+ are stripped before return.
a string which is displayed in the first line of --help output, after programname [OPTION...]
a NULL-terminated array of GOptionEntrys describing the options of your program
a translation domain to use for translating the --help output for the options in entries and the parameter_string with gettext(), or NULL
TRUE if the commandline arguments (if any) were valid and if the windowing system has been successfully initialized, FALSE otherwise
GException on failure.
2.6
This function does the same work as gtk_init_check(). Additionally, it allows you to add your own commandline options, and it automatically generates nicely formatted --help output. Note that your program will be terminated after writing out the help output.