Method

GIRepositoryArgInfois_optional

since: 2.80

Declaration 

gboolean
gi_arg_info_is_optional (
  GIArgInfo* info
)

Description

Obtain if the argument is optional.

For ‘out’ arguments this means that you can pass NULL in order to ignore the result.

Available since: 2.80

Return value

Type: gboolean

TRUE if it is an optional argument.