G_CLOSURE_NEEDS_MARSHAL()

#define G_CLOSURE_NEEDS_MARSHAL(closure) (((GClosure*) (closure))->marshal == NULL)

Check if the closure still needs a marshaller. See g_closure_set_marshal().

G_CLOSURE_N_NOTIFIERS()

#define             G_CLOSURE_N_NOTIFIERS(cl)

Get the total number of notifiers connected with the closure cl .

The count includes the meta marshaller, the finalize and invalidate notifiers and the marshal guards. Note that each guard counts as two notifiers. See g_closure_set_meta_marshal(), g_closure_add_finalize_notifier(), g_closure_add_invalidate_notifier() and g_closure_add_marshal_guards().

G_CCLOSURE_SWAP_DATA()

#define G_CCLOSURE_SWAP_DATA(cclosure)	 (((GClosure*) (cclosure))->derivative_flag)

Checks whether the user data of the GCClosure should be passed as the first parameter to the callback. See g_cclosure_new_swap().

G_CALLBACK()

#define G_CALLBACK(f)			 ((GCallback) (f))

Cast a function pointer to a GCallback.

GCallback ()

void
(*GCallback) (void);

The type used for callback functions in structure definitions and function signatures.

This doesn't mean that all callback functions must take no parameters and return void. The required signature of a callback function is determined by the context in which is used (e.g. the signal to which it is connected).

Use G_CALLBACK() to cast the callback function to a GCallback.

GClosureMarshal ()

void
(*GClosureMarshal) (GClosure *closure,
                    GValue *return_value,
                    guint n_param_values,
                    const GValue *param_values,
                    gpointer invocation_hint,
                    gpointer user_data);

The type used for marshaller functions.

GVaClosureMarshal ()

void
(*GVaClosureMarshal) (GClosure *closure,
                      GValue *return_value,
                      gpointer instance,
                      va_list args,
                      gpointer marshal_data,
                      int n_params,
                      GType *param_types);

This is the signature of va_list marshaller functions, an optional marshaller that can be used in some situations to avoid marshalling the signal argument into GValues.

GClosureNotify ()

void
(*GClosureNotify) (gpointer data,
                   GClosure *closure);

The type used for the various notification callbacks which can be registered on closures.

g_cclosure_new ()

GClosure *
g_cclosure_new (GCallback callback_func,
                gpointer user_data,
                GClosureNotify destroy_data);

Creates a new closure which invokes callback_func with user_data as the last parameter.

destroy_data will be called as a finalize notifier on the GClosure.

[skip]

g_cclosure_new_swap ()

GClosure *
g_cclosure_new_swap (GCallback callback_func,
                     gpointer user_data,
                     GClosureNotify destroy_data);

Creates a new closure which invokes callback_func with user_data as the first parameter.

destroy_data will be called as a finalize notifier on the GClosure.

[skip]

g_cclosure_new_object ()

GClosure *
g_cclosure_new_object (GCallback callback_func,
                       GObject *object);

A variant of g_cclosure_new() which uses object as user_data and calls g_object_watch_closure() on object and the created closure. This function is useful when you have a callback closely associated with a GObject, and want the callback to no longer run after the object is is freed.

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g_cclosure_new_object_swap ()

GClosure *
g_cclosure_new_object_swap (GCallback callback_func,
                            GObject *object);

A variant of g_cclosure_new_swap() which uses object as user_data and calls g_object_watch_closure() on object and the created closure. This function is useful when you have a callback closely associated with a GObject, and want the callback to no longer run after the object is is freed.

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g_cclosure_marshal_generic ()

void
g_cclosure_marshal_generic (GClosure *closure,
                            GValue *return_gvalue,
                            guint n_param_values,
                            const GValue *param_values,
                            gpointer invocation_hint,
                            gpointer marshal_data);

A generic marshaller function implemented via libffi.

Normally this function is not passed explicitly to g_signal_new(), but used automatically by GLib when specifying a NULL marshaller.

Since: 2.30

g_closure_new_object ()

GClosure *
g_closure_new_object (guint sizeof_closure,
                      GObject *object);

A variant of g_closure_new_simple() which stores object in the data field of the closure and calls g_object_watch_closure() on object and the created closure. This function is mainly useful when implementing new types of closures.

g_closure_ref ()

GClosure *
g_closure_ref (GClosure *closure);

Increments the reference count on a closure to force it staying alive while the caller holds a pointer to it.

g_closure_sink ()

void
g_closure_sink (GClosure *closure);

Takes over the initial ownership of a closure.

Each closure is initially created in a "floating" state, which means that the initial reference count is not owned by any caller.

This function checks to see if the object is still floating, and if so, unsets the floating state and decreases the reference count. If the closure is not floating, g_closure_sink() does nothing.

The reason for the existence of the floating state is to prevent cumbersome code sequences like:

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closure = g_cclosure_new (cb_func, cb_data);
g_source_set_closure (source, closure);
g_closure_unref (closure); // GObject doesn't really need this

Because g_source_set_closure() (and similar functions) take ownership of the initial reference count, if it is unowned, we instead can write:

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g_source_set_closure (source, g_cclosure_new (cb_func, cb_data));

Generally, this function is used together with g_closure_ref(). An example of storing a closure for later notification looks like:

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static GClosure *notify_closure = NULL;
void
foo_notify_set_closure (GClosure *closure)
{
  if (notify_closure)
    g_closure_unref (notify_closure);
  notify_closure = closure;
  if (notify_closure)
    {
      g_closure_ref (notify_closure);
      g_closure_sink (notify_closure);
    }
}

Because g_closure_sink() may decrement the reference count of a closure (if it hasn't been called on closure yet) just like g_closure_unref(), g_closure_ref() should be called prior to this function.

g_closure_unref ()

void
g_closure_unref (GClosure *closure);

Decrements the reference count of a closure after it was previously incremented by the same caller.

If no other callers are using the closure, then the closure will be destroyed and freed.

g_closure_invoke ()

void
g_closure_invoke (GClosure *closure,
                  GValue *return_value,
                  guint n_param_values,
                  const GValue *param_values,
                  gpointer invocation_hint);

Invokes the closure, i.e. executes the callback represented by the closure .

g_closure_invalidate ()

void
g_closure_invalidate (GClosure *closure);

Sets a flag on the closure to indicate that its calling environment has become invalid, and thus causes any future invocations of g_closure_invoke() on this closure to be ignored.

Also, invalidation notifiers installed on the closure will be called at this point. Note that unless you are holding a reference to the closure yourself, the invalidation notifiers may unref the closure and cause it to be destroyed, so if you need to access the closure after calling g_closure_invalidate(), make sure that you've previously called g_closure_ref().

Note that g_closure_invalidate() will also be called when the reference count of a closure drops to zero (unless it has already been invalidated before).

g_closure_add_finalize_notifier ()

void
g_closure_add_finalize_notifier (GClosure *closure,
                                 gpointer notify_data,
                                 GClosureNotify notify_func);

Registers a finalization notifier which will be called when the reference count of closure goes down to 0.

Multiple finalization notifiers on a single closure are invoked in unspecified order. If a single call to g_closure_unref() results in the closure being both invalidated and finalized, then the invalidate notifiers will be run before the finalize notifiers.

[skip]

g_closure_add_invalidate_notifier ()

void
g_closure_add_invalidate_notifier (GClosure *closure,
                                   gpointer notify_data,
                                   GClosureNotify notify_func);

Registers an invalidation notifier which will be called when the closure is invalidated with g_closure_invalidate().

Invalidation notifiers are invoked before finalization notifiers, in an unspecified order.

[skip]

g_closure_remove_finalize_notifier ()

void
g_closure_remove_finalize_notifier (GClosure *closure,
                                    gpointer notify_data,
                                    GClosureNotify notify_func);

Removes a finalization notifier.

Notice that notifiers are automatically removed after they are run.

[skip]

g_closure_remove_invalidate_notifier ()

void
g_closure_remove_invalidate_notifier (GClosure *closure,
                                      gpointer notify_data,
                                      GClosureNotify notify_func);

Removes an invalidation notifier.

Notice that notifiers are automatically removed after they are run.

[skip]

g_closure_new_simple ()

GClosure *
g_closure_new_simple (guint sizeof_closure,
                      gpointer data);

Allocates a struct of the given size and initializes the initial part as a GClosure.

This function is mainly useful when implementing new types of closures:

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typedef struct _MyClosure MyClosure;
struct _MyClosure
{
  GClosure closure;
  // extra data goes here
};

static void
my_closure_finalize (gpointer  notify_data,
                     GClosure *closure)
{
  MyClosure *my_closure = (MyClosure *)closure;

  // free extra data here
}

MyClosure *my_closure_new (gpointer data)
{
  GClosure *closure;
  MyClosure *my_closure;

  closure = g_closure_new_simple (sizeof (MyClosure), data);
  my_closure = (MyClosure *) closure;

  // initialize extra data here

  g_closure_add_finalize_notifier (closure, notify_data,
                                   my_closure_finalize);
  return my_closure;
}

g_closure_set_marshal ()

void
g_closure_set_marshal (GClosure *closure,
                       GClosureMarshal marshal);

Sets the marshaller of closure .

The marshal_data of marshal provides a way for a meta marshaller to provide additional information to the marshaller.

For GObject's C predefined marshallers (the g_cclosure_marshal_*() functions), what it provides is a callback function to use instead of closure->callback .

See also: g_closure_set_meta_marshal()

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g_closure_add_marshal_guards ()

void
g_closure_add_marshal_guards (GClosure *closure,
                              gpointer pre_marshal_data,
                              GClosureNotify pre_marshal_notify,
                              gpointer post_marshal_data,
                              GClosureNotify post_marshal_notify);

Adds a pair of notifiers which get invoked before and after the closure callback, respectively.

This is typically used to protect the extra arguments for the duration of the callback. See g_object_watch_closure() for an example of marshal guards.

[skip]

g_closure_set_meta_marshal ()

void
g_closure_set_meta_marshal (GClosure *closure,
                            gpointer marshal_data,
                            GClosureMarshal meta_marshal);

Sets the meta marshaller of closure .

A meta marshaller wraps the closure 's marshal and modifies the way it is called in some fashion. The most common use of this facility is for C callbacks.

The same marshallers (generated by glib-genmarshal), are used everywhere, but the way that we get the callback function differs. In most cases we want to use the closure 's callback, but in other cases we want to use some different technique to retrieve the callback function.

For example, class closures for signals (see g_signal_type_cclosure_new()) retrieve the callback function from a fixed offset in the class structure. The meta marshaller retrieves the right callback and passes it to the marshaller as the marshal_data argument.

[skip]

g_source_set_closure ()

void
g_source_set_closure (GSource *source,
                      GClosure *closure);

Set the callback for a source as a GClosure.

If the source is not one of the standard GLib types, the closure_callback and closure_marshal fields of the GSourceFuncs structure must have been filled in with pointers to appropriate functions.

g_source_set_dummy_callback ()

void
g_source_set_dummy_callback (GSource *source);

Sets a dummy callback for source . The callback will do nothing, and if the source expects a gboolean return value, it will return TRUE. (If the source expects any other type of return value, it will return a 0/NULL value; whatever g_value_init() initializes a GValue to for that type.)

If the source is not one of the standard GLib types, the closure_callback and closure_marshal fields of the GSourceFuncs structure must have been filled in with pointers to appropriate functions.

g_cclosure_marshal_VOID__VOID ()

void
g_cclosure_marshal_VOID__VOID (GClosure *closure,
                               GValue *return_value,
                               guint n_param_values,
                               const GValue *param_values,
                               gpointer invocation_hint,
                               gpointer marshal_data);

A GClosureMarshal function for use with signals with no arguments.

g_cclosure_marshal_VOID__BOOLEAN ()

void
g_cclosure_marshal_VOID__BOOLEAN (GClosure *closure,
                                  GValue *return_value,
                                  guint n_param_values,
                                  const GValue *param_values,
                                  gpointer invocation_hint,
                                  gpointer marshal_data);

A GClosureMarshal function for use with signals with a single boolean argument.

g_cclosure_marshal_VOID__CHAR ()

void
g_cclosure_marshal_VOID__CHAR (GClosure *closure,
                               GValue *return_value,
                               guint n_param_values,
                               const GValue *param_values,
                               gpointer invocation_hint,
                               gpointer marshal_data);

A GClosureMarshal function for use with signals with a single character argument.

g_cclosure_marshal_VOID__UCHAR ()

void
g_cclosure_marshal_VOID__UCHAR (GClosure *closure,
                                GValue *return_value,
                                guint n_param_values,
                                const GValue *param_values,
                                gpointer invocation_hint,
                                gpointer marshal_data);

A GClosureMarshal function for use with signals with a single unsigned character argument.

g_cclosure_marshal_VOID__INT ()

void
g_cclosure_marshal_VOID__INT (GClosure *closure,
                              GValue *return_value,
                              guint n_param_values,
                              const GValue *param_values,
                              gpointer invocation_hint,
                              gpointer marshal_data);

A GClosureMarshal function for use with signals with a single integer argument.

g_cclosure_marshal_VOID__UINT ()

void
g_cclosure_marshal_VOID__UINT (GClosure *closure,
                               GValue *return_value,
                               guint n_param_values,
                               const GValue *param_values,
                               gpointer invocation_hint,
                               gpointer marshal_data);

A GClosureMarshal function for use with signals with with a single unsigned integer argument.

g_cclosure_marshal_VOID__LONG ()

void
g_cclosure_marshal_VOID__LONG (GClosure *closure,
                               GValue *return_value,
                               guint n_param_values,
                               const GValue *param_values,
                               gpointer invocation_hint,
                               gpointer marshal_data);

A GClosureMarshal function for use with signals with with a single long integer argument.

g_cclosure_marshal_VOID__ULONG ()

void
g_cclosure_marshal_VOID__ULONG (GClosure *closure,
                                GValue *return_value,
                                guint n_param_values,
                                const GValue *param_values,
                                gpointer invocation_hint,
                                gpointer marshal_data);

A GClosureMarshal function for use with signals with a single unsigned long integer argument.

g_cclosure_marshal_VOID__ENUM ()

void
g_cclosure_marshal_VOID__ENUM (GClosure *closure,
                               GValue *return_value,
                               guint n_param_values,
                               const GValue *param_values,
                               gpointer invocation_hint,
                               gpointer marshal_data);

A GClosureMarshal function for use with signals with a single argument with an enumerated type.

g_cclosure_marshal_VOID__FLAGS ()

void
g_cclosure_marshal_VOID__FLAGS (GClosure *closure,
                                GValue *return_value,
                                guint n_param_values,
                                const GValue *param_values,
                                gpointer invocation_hint,
                                gpointer marshal_data);

A GClosureMarshal function for use with signals with a single argument with a flags types.

g_cclosure_marshal_VOID__FLOAT ()

void
g_cclosure_marshal_VOID__FLOAT (GClosure *closure,
                                GValue *return_value,
                                guint n_param_values,
                                const GValue *param_values,
                                gpointer invocation_hint,
                                gpointer marshal_data);

A GClosureMarshal function for use with signals with one single-precision floating point argument.

g_cclosure_marshal_VOID__DOUBLE ()

void
g_cclosure_marshal_VOID__DOUBLE (GClosure *closure,
                                 GValue *return_value,
                                 guint n_param_values,
                                 const GValue *param_values,
                                 gpointer invocation_hint,
                                 gpointer marshal_data);

A GClosureMarshal function for use with signals with one double-precision floating point argument.

g_cclosure_marshal_VOID__STRING ()

void
g_cclosure_marshal_VOID__STRING (GClosure *closure,
                                 GValue *return_value,
                                 guint n_param_values,
                                 const GValue *param_values,
                                 gpointer invocation_hint,
                                 gpointer marshal_data);

A GClosureMarshal function for use with signals with a single string argument.

g_cclosure_marshal_VOID__PARAM ()

void
g_cclosure_marshal_VOID__PARAM (GClosure *closure,
                                GValue *return_value,
                                guint n_param_values,
                                const GValue *param_values,
                                gpointer invocation_hint,
                                gpointer marshal_data);

A GClosureMarshal function for use with signals with a single argument of type GParamSpec.

g_cclosure_marshal_VOID__BOXED ()

void
g_cclosure_marshal_VOID__BOXED (GClosure *closure,
                                GValue *return_value,
                                guint n_param_values,
                                const GValue *param_values,
                                gpointer invocation_hint,
                                gpointer marshal_data);

A GClosureMarshal function for use with signals with a single argument which is any boxed pointer type.

g_cclosure_marshal_VOID__POINTER ()

void
g_cclosure_marshal_VOID__POINTER (GClosure *closure,
                                  GValue *return_value,
                                  guint n_param_values,
                                  const GValue *param_values,
                                  gpointer invocation_hint,
                                  gpointer marshal_data);

A GClosureMarshal function for use with signals with a single raw pointer argument type.

If it is possible, it is better to use one of the more specific functions such as g_cclosure_marshal_VOID__OBJECT() or g_cclosure_marshal_VOID__OBJECT().

g_cclosure_marshal_VOID__OBJECT ()

void
g_cclosure_marshal_VOID__OBJECT (GClosure *closure,
                                 GValue *return_value,
                                 guint n_param_values,
                                 const GValue *param_values,
                                 gpointer invocation_hint,
                                 gpointer marshal_data);

A GClosureMarshal function for use with signals with a single GObject argument.

g_cclosure_marshal_VOID__VARIANT ()

void
g_cclosure_marshal_VOID__VARIANT (GClosure *closure,
                                  GValue *return_value,
                                  guint n_param_values,
                                  const GValue *param_values,
                                  gpointer invocation_hint,
                                  gpointer marshal_data);

A GClosureMarshal function for use with signals with a single GVariant argument.

Since: 2.26

g_cclosure_marshal_STRING__OBJECT_POINTER ()

void
g_cclosure_marshal_STRING__OBJECT_POINTER
                               (GClosure *closure,
                                GValue *return_value,
                                guint n_param_values,
                                const GValue *param_values,
                                gpointer invocation_hint,
                                gpointer marshal_data);

A GClosureMarshal function for use with signals with handlers that take a GObject and a pointer and produce a string. It is highly unlikely that your signal handler fits this description.

g_cclosure_marshal_VOID__UINT_POINTER ()

void
g_cclosure_marshal_VOID__UINT_POINTER (GClosure *closure,
                                       GValue *return_value,
                                       guint n_param_values,
                                       const GValue *param_values,
                                       gpointer invocation_hint,
                                       gpointer marshal_data);

A GClosureMarshal function for use with signals with an unsigned int and a pointer as arguments.

g_cclosure_marshal_BOOLEAN__FLAGS ()

void
g_cclosure_marshal_BOOLEAN__FLAGS (GClosure *closure,
                                   GValue *return_value,
                                   guint n_param_values,
                                   const GValue *param_values,
                                   gpointer invocation_hint,
                                   gpointer marshal_data);

A GClosureMarshal function for use with signals with handlers that take a flags type as an argument and return a boolean. If you have such a signal, you will probably also need to use an accumulator, such as g_signal_accumulator_true_handled().

g_cclosure_marshal_BOOLEAN__BOXED_BOXED ()

void
g_cclosure_marshal_BOOLEAN__BOXED_BOXED
                               (GClosure *closure,
                                GValue *return_value,
                                guint n_param_values,
                                const GValue *param_values,
                                gpointer invocation_hint,
                                gpointer marshal_data);

A GClosureMarshal function for use with signals with handlers that take two boxed pointers as arguments and return a boolean. If you have such a signal, you will probably also need to use an accumulator, such as g_signal_accumulator_true_handled().

g_cclosure_marshal_generic_va ()

void
g_cclosure_marshal_generic_va (GClosure *closure,
                               GValue *return_value,
                               gpointer instance,
                               va_list args_list,
                               gpointer marshal_data,
                               int n_params,
                               GType *param_types);

A generic GVaClosureMarshal function implemented via libffi.

Since: 2.30

g_cclosure_marshal_VOID__VOIDv ()

void
g_cclosure_marshal_VOID__VOIDv (GClosure *closure,
                                GValue *return_value,
                                gpointer instance,
                                va_list args,
                                gpointer marshal_data,
                                int n_params,
                                GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_VOID__VOID().

g_cclosure_marshal_VOID__BOOLEANv ()

void
g_cclosure_marshal_VOID__BOOLEANv (GClosure *closure,
                                   GValue *return_value,
                                   gpointer instance,
                                   va_list args,
                                   gpointer marshal_data,
                                   int n_params,
                                   GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_VOID__BOOLEAN().

g_cclosure_marshal_VOID__CHARv ()

void
g_cclosure_marshal_VOID__CHARv (GClosure *closure,
                                GValue *return_value,
                                gpointer instance,
                                va_list args,
                                gpointer marshal_data,
                                int n_params,
                                GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_VOID__CHAR().

g_cclosure_marshal_VOID__UCHARv ()

void
g_cclosure_marshal_VOID__UCHARv (GClosure *closure,
                                 GValue *return_value,
                                 gpointer instance,
                                 va_list args,
                                 gpointer marshal_data,
                                 int n_params,
                                 GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_VOID__UCHAR().

g_cclosure_marshal_VOID__INTv ()

void
g_cclosure_marshal_VOID__INTv (GClosure *closure,
                               GValue *return_value,
                               gpointer instance,
                               va_list args,
                               gpointer marshal_data,
                               int n_params,
                               GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_VOID__INT().

g_cclosure_marshal_VOID__UINTv ()

void
g_cclosure_marshal_VOID__UINTv (GClosure *closure,
                                GValue *return_value,
                                gpointer instance,
                                va_list args,
                                gpointer marshal_data,
                                int n_params,
                                GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_VOID__UINT().

g_cclosure_marshal_VOID__LONGv ()

void
g_cclosure_marshal_VOID__LONGv (GClosure *closure,
                                GValue *return_value,
                                gpointer instance,
                                va_list args,
                                gpointer marshal_data,
                                int n_params,
                                GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_VOID__LONG().

g_cclosure_marshal_VOID__ULONGv ()

void
g_cclosure_marshal_VOID__ULONGv (GClosure *closure,
                                 GValue *return_value,
                                 gpointer instance,
                                 va_list args,
                                 gpointer marshal_data,
                                 int n_params,
                                 GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_VOID__ULONG().

g_cclosure_marshal_VOID__ENUMv ()

void
g_cclosure_marshal_VOID__ENUMv (GClosure *closure,
                                GValue *return_value,
                                gpointer instance,
                                va_list args,
                                gpointer marshal_data,
                                int n_params,
                                GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_VOID__ENUM().

g_cclosure_marshal_VOID__FLAGSv ()

void
g_cclosure_marshal_VOID__FLAGSv (GClosure *closure,
                                 GValue *return_value,
                                 gpointer instance,
                                 va_list args,
                                 gpointer marshal_data,
                                 int n_params,
                                 GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_VOID__FLAGS().

g_cclosure_marshal_VOID__FLOATv ()

void
g_cclosure_marshal_VOID__FLOATv (GClosure *closure,
                                 GValue *return_value,
                                 gpointer instance,
                                 va_list args,
                                 gpointer marshal_data,
                                 int n_params,
                                 GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_VOID__FLOAT().

g_cclosure_marshal_VOID__DOUBLEv ()

void
g_cclosure_marshal_VOID__DOUBLEv (GClosure *closure,
                                  GValue *return_value,
                                  gpointer instance,
                                  va_list args,
                                  gpointer marshal_data,
                                  int n_params,
                                  GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_VOID__DOUBLE().

g_cclosure_marshal_VOID__STRINGv ()

void
g_cclosure_marshal_VOID__STRINGv (GClosure *closure,
                                  GValue *return_value,
                                  gpointer instance,
                                  va_list args,
                                  gpointer marshal_data,
                                  int n_params,
                                  GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_VOID__STRING().

g_cclosure_marshal_VOID__PARAMv ()

void
g_cclosure_marshal_VOID__PARAMv (GClosure *closure,
                                 GValue *return_value,
                                 gpointer instance,
                                 va_list args,
                                 gpointer marshal_data,
                                 int n_params,
                                 GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_VOID__PARAM().

g_cclosure_marshal_VOID__BOXEDv ()

void
g_cclosure_marshal_VOID__BOXEDv (GClosure *closure,
                                 GValue *return_value,
                                 gpointer instance,
                                 va_list args,
                                 gpointer marshal_data,
                                 int n_params,
                                 GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_VOID__BOXED().

g_cclosure_marshal_VOID__POINTERv ()

void
g_cclosure_marshal_VOID__POINTERv (GClosure *closure,
                                   GValue *return_value,
                                   gpointer instance,
                                   va_list args,
                                   gpointer marshal_data,
                                   int n_params,
                                   GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_VOID__POINTER().

g_cclosure_marshal_VOID__OBJECTv ()

void
g_cclosure_marshal_VOID__OBJECTv (GClosure *closure,
                                  GValue *return_value,
                                  gpointer instance,
                                  va_list args,
                                  gpointer marshal_data,
                                  int n_params,
                                  GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_VOID__OBJECT().

g_cclosure_marshal_VOID__VARIANTv ()

void
g_cclosure_marshal_VOID__VARIANTv (GClosure *closure,
                                   GValue *return_value,
                                   gpointer instance,
                                   va_list args,
                                   gpointer marshal_data,
                                   int n_params,
                                   GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_VOID__VARIANT().

g_cclosure_marshal_STRING__OBJECT_POINTERv ()

void
g_cclosure_marshal_STRING__OBJECT_POINTERv
                               (GClosure *closure,
                                GValue *return_value,
                                gpointer instance,
                                va_list args,
                                gpointer marshal_data,
                                int n_params,
                                GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_STRING__OBJECT_POINTER().

g_cclosure_marshal_VOID__UINT_POINTERv ()

void
g_cclosure_marshal_VOID__UINT_POINTERv
                               (GClosure *closure,
                                GValue *return_value,
                                gpointer instance,
                                va_list args,
                                gpointer marshal_data,
                                int n_params,
                                GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_VOID__UINT_POINTER().

g_cclosure_marshal_BOOLEAN__FLAGSv ()

void
g_cclosure_marshal_BOOLEAN__FLAGSv (GClosure *closure,
                                    GValue *return_value,
                                    gpointer instance,
                                    va_list args,
                                    gpointer marshal_data,
                                    int n_params,
                                    GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_BOOLEAN__FLAGS().

g_cclosure_marshal_BOOLEAN__BOXED_BOXEDv ()

void
g_cclosure_marshal_BOOLEAN__BOXED_BOXEDv
                               (GClosure *closure,
                                GValue *return_value,
                                gpointer instance,
                                va_list args,
                                gpointer marshal_data,
                                int n_params,
                                GType *param_types);

The GVaClosureMarshal equivalent to g_cclosure_marshal_BOOLEAN__BOXED_BOXED().

struct GClosure

struct GClosure {
  guint in_marshal : 1;  /* (atomic) */
  guint is_invalid : 1;  /* (atomic) */
};

A GClosure represents a callback supplied by the programmer.

G_TYPE_CLOSURE

#define G_TYPE_CLOSURE (g_closure_get_type ())

The GType for GClosure.

struct GCClosure

struct GCClosure {
  GClosure closure;
  gpointer callback;
};

A GCClosure is a specialization of GClosure for C function callbacks.

g_cclosure_marshal_BOOL__FLAGS

#define             g_cclosure_marshal_BOOL__FLAGS

An old alias for g_cclosure_marshal_BOOLEAN__FLAGS().

g_cclosure_marshal_BOOL__BOXED_BOXED

#define             g_cclosure_marshal_BOOL__BOXED_BOXED

An old alias for g_cclosure_marshal_BOOLEAN__BOXED_BOXED().