[ Version ( since = "2.56" ) ]
public void set_option_context_parameter_string (string? parameter_string)
Sets the parameter string to be used by the commandline handling of this.
This function registers the argument to be passed to OptionContext when the internal OptionContext of this is created.
See OptionContext for more information about parameter_string.
| this |
the Application |
| parameter_string |
a string which is displayed in the first line of `--help` output, after the usage summary `programname [OPTION...]`. |