DESCRIPTIONThis object describes a parameter which holds the name of a class known to the GLib type system. The name of the class is considered to be the common ancestor for valid values. To create a param that allows any type name, specify "undef" for the package name. Beware, however, that although we say ``any type name'', this actually refers to any type registered with Glib; normal Perl packages will not work.
string or undef = $pspec_gtype->get_is_a_typeIf "undef", then any class is allowed.
Since: glib 2.10
COPYRIGHTCopyright (C) 2003-2011 by the gtk2-perl team.
This software is licensed under the LGPL. See Glib for a full notice.