Virtual Method
GioActionGroupactivate_action
since: 2.28
Declaration
void
activate_action (
GActionGroup* action_group,
const gchar* action_name,
GVariant* parameter
)
Description
Activate the named action within action_group.
If the action is expecting a parameter, then the correct type of
parameter must be given as parameter. If the action is expecting no
parameters then parameter must be NULL. See g_action_group_get_action_parameter_type().
If the GActionGroup implementation supports asynchronous remote
activation over D-Bus, this call may return before the relevant
D-Bus traffic has been sent, or any replies have been received. In
order to block on such asynchronous activation calls,
g_dbus_connection_flush() should be called prior to the code, which
depends on the result of the action activation. Without flushing
the D-Bus connection, there is no guarantee that the action would
have been activated.
The following code which runs in a remote app instance, shows an
example of a “quit” action being activated on the primary app
instance over D-Bus. Here g_dbus_connection_flush() is called
before exit(). Without g_dbus_connection_flush(), the “quit” action
may fail to be activated on the primary instance.
// call "quit" action on primary instance
g_action_group_activate_action (G_ACTION_GROUP (app), "quit", NULL);
// make sure the action is activated now
g_dbus_connection_flush (...);
g_debug ("application has been terminated. exiting.");
exit (0);
Available since: 2.28
Parameters
action_name-
Type:
const gchar*The name of the action to activate.
The data is owned by the caller of the function. The value is a NUL terminated UTF-8 string. parameter-
Type:
GVariantParameters to the activation.
The argument can be NULL.The data is owned by the caller of the function.