Virtual Method
GioActionGroupactivate_action
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 |
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 |
GVariant |
Parameters to the activation. |
|
The argument can be NULL . | |
The data is owned by the caller of the function. |