Sets the target of an actionable widget.
This is a convenience function that calls Variant for format_string and uses the result
to call set_action_target_value.
If you are setting a string-valued target and want to set the action name at the same time, you can use gtk_actionable_set_detailed_action_name ().
| this |
a Actionable widget |
| format_string |
a GVariant format string |
| ... |
arguments appropriate for |