activate_action_variant
Description:
Looks up the action in the action groups associated with this and its ancestors, and activates it.
If the action is in an action group added with [method@Gtk.Widget.insert_action_group], the name is expected to be prefixed with
the prefix that was used when the group was inserted.
The arguments must match the actions expected parameter type, as returned by `g_action_get_parameter_type()`.
Parameters:
| this |
a `GtkWidget` |
| name |
the name of the action to activate |
| args |
parameters to use |
Returns:
|
true if the action was activated, false if the action does not exist. |