query_action
Description:
[ CCode ( cname = "gtk_widget_class_query_action" ) ]
public class bool query_action (uint index_, out Type owner, out unowned string action_name, out unowned VariantType? parameter_type, out unowned string? property_name)
public class bool query_action (uint index_, out Type owner, out unowned string action_name, out unowned VariantType? parameter_type, out unowned string? property_name)
Returns details about the index_-th action that has been installed for this during class
initialization.
See [method@Gtk.WidgetClass.install_action] for details on how to install actions.
Note that this function will also return actions defined by parent classes. You can identify those by looking at owner.
Parameters:
| this |
a `GtkWidget` class |
| index_ |
position of the action to query |
| owner |
return location for the type where the action was defined |
| action_name |
return location for the action name |
| parameter_type |
return location for the parameter type |
| property_name |
return location for the property name |
Returns:
|
true if the action was found, false if |