Gets the current group name for notebook. Note that this funtion can emphasis not be used together with gtk_notebook_set_group() or gtk_notebook_set_group_id(). Since 2.24
the group name, or NULL if none is set. [transfer none]
See Implementation
Gets the current group name for notebook. Note that this funtion can emphasis not be used together with gtk_notebook_set_group() or gtk_notebook_set_group_id(). Since 2.24