Sets or unsets the "action" and "target" attributes of this.
If action
is null then both the "action" and "target" attributes are unset (and
format_string
is ignored along with the positional parameters).
If action
is non-null then the "action" attribute is set. format_string
is
then inspected. If it is non-null then the proper position parameters are collected to create a
Variant instance to use as the target value. If it is null then the
positional parameters are ignored and the "target" attribute is unset.
See also set_action_and_target_value for an equivalent call that directly accepts a Variant. See set_detailed_action for a more convenient version that works with string-typed targets.
See also set_action_and_target_value for a description of the semantics of the action and target attributes.
this |
a MenuItem |
action |
the name of the action for this item |
format_string |
a GVariant format string |
... |
positional parameters, as per |