Adds a string to be displayed in --help output before the list of options. This is typically a summary of the program functionality.
Note that the summary is translated (see g_option_context_set_translate_func() and g_option_context_set_translation_domain()).
a string to be shown in --help output before the list of options, or %NULL
2.12
See Implementation
Adds a string to be displayed in --help output before the list of options. This is typically a summary of the program functionality.
Note that the summary is translated (see g_option_context_set_translate_func() and g_option_context_set_translation_domain()).