g_signal_group_block ()

void
g_signal_group_block (GSignalGroup *self);

Blocks all signal handlers managed by self so they will not be called during any signal emissions. Must be unblocked exactly the same number of times it has been blocked to become active again.

This blocked state will be kept across changes of the target instance.

Since: 2.72

g_signal_group_connect ()

void
g_signal_group_connect (GSignalGroup *self,
                        const gchar *detailed_signal,
                        GCallback c_handler,
                        gpointer data);

Connects c_handler to the signal detailed_signal on the target instance of self .

You cannot connect a signal handler after “target” has been set.

[skip]

Since: 2.72

g_signal_group_connect_after ()

void
g_signal_group_connect_after (GSignalGroup *self,
                              const gchar *detailed_signal,
                              GCallback c_handler,
                              gpointer data);

Connects c_handler to the signal detailed_signal on the target instance of self .

The c_handler will be called after the default handler of the signal.

You cannot connect a signal handler after “target” has been set.

[skip]

Since: 2.72

g_signal_group_connect_data ()

void
g_signal_group_connect_data (GSignalGroup *self,
                             const gchar *detailed_signal,
                             GCallback c_handler,
                             gpointer data,
                             GClosureNotify notify,
                             GConnectFlags flags);

Connects c_handler to the signal detailed_signal on the target instance of self .

You cannot connect a signal handler after “target” has been set.

Since: 2.72

g_signal_group_connect_object ()

void
g_signal_group_connect_object (GSignalGroup *self,
                               const gchar *detailed_signal,
                               GCallback c_handler,
                               gpointer object,
                               GConnectFlags flags);

Connects c_handler to the signal detailed_signal on “target”.

Ensures that the object stays alive during the call to c_handler by temporarily adding a reference count. When the object is destroyed the signal handler will automatically be removed.

You cannot connect a signal handler after “target” has been set.

[skip]

Since: 2.72

g_signal_group_connect_swapped ()

void
g_signal_group_connect_swapped (GSignalGroup *self,
                                const gchar *detailed_signal,
                                GCallback c_handler,
                                gpointer data);

Connects c_handler to the signal detailed_signal on the target instance of self .

The instance on which the signal is emitted and data will be swapped when calling c_handler .

You cannot connect a signal handler after “target” has been set.

Since: 2.72

g_signal_group_connect_closure ()

void
g_signal_group_connect_closure (GSignalGroup *self,
                                const gchar *detailed_signal,
                                GClosure *closure,
                                gboolean after);

Connects closure to the signal detailed_signal on “target”.

You cannot connect a signal handler after “target” has been set.

Since: 2.74

g_signal_group_dup_target ()

gpointer
g_signal_group_dup_target (GSignalGroup *self);

Gets the target instance used when connecting signals.

Since: 2.72

g_signal_group_get_type ()

GType
g_signal_group_get_type (void);

g_signal_group_new ()

GSignalGroup *
g_signal_group_new (GType target_type);

Creates a new GSignalGroup for target instances of target_type .

Since: 2.72

g_signal_group_set_target ()

void
g_signal_group_set_target (GSignalGroup *self,
                           gpointer target);

Sets the target instance used when connecting signals. Any signal that has been registered with g_signal_group_connect_object() or similar functions will be connected to this object.

If the target instance was previously set, signals will be disconnected from that object prior to connecting to target .

Since: 2.72

g_signal_group_unblock ()

void
g_signal_group_unblock (GSignalGroup *self);

Unblocks all signal handlers managed by self so they will be called again during any signal emissions unless it is blocked again. Must be unblocked exactly the same number of times it has been blocked to become active again.

Since: 2.72

GSignalGroup

typedef struct _GSignalGroup GSignalGroup;

GSignalGroup is an opaque structure whose members cannot be accessed directly.

Since: 2.72

The “target” property

  “target”                   GObject *

The target instance used when connecting signals.

Owner: GSignalGroup

Flags: Read / Write

Since: 2.72

The “target-type” property

  “target-type”              GType *

The GType of the target property.

Owner: GSignalGroup

Flags: Read / Write / Construct Only

Allowed values: GObject

Since: 2.72

The “bind” signal

void
user_function (GSignalGroup *self,
               GObject      *instance,
               gpointer      user_data)

This signal is emitted when “target” is set to a new value other than NULL. It is similar to “notify” on target except it will not emit when “target” is NULL and also allows for receiving the GObject without a data-race.

Flags: Run Last

Since: 2.72

The “unbind” signal

void
user_function (GSignalGroup *self,
               gpointer      user_data)

This signal is emitted when the target instance of self is set to a new GObject.

This signal will only be emitted if the previous target of self is non-NULL.

Flags: Run Last

Since: 2.72