[ CCode ( has_target = false ) ]
public delegate void WidgetActionActivateFunc (Widget widget, string action_name, Variant parameter)
The type of the callback functions used for activating actions installed with install_action.
The parameter must match the parameter_type of the action.
| widget |
the widget to which the action belongs |
| action_name |
the action name |
| parameter |
parameter for activation |