Function

GObjectsignal_override_class_handler

Declaration

void
g_signal_override_class_handler (
  const gchar* signal_name,
  GType instance_type,
  GCallback class_handler
)

Description

Overrides the class closure (i.e. the default handler) for the given signal for emissions on instances of instance_type with callback class_handler. instance_type must be derived from the type to which the signal belongs.

See g_signal_chain_from_overridden() and g_signal_chain_from_overridden_handler() for how to chain up to the parent class closure from inside the overridden one.

Available since:	2.18
This function is not directly available to language bindings

Parameters

`signal_name`	`const gchar*`
	The name for the signal.
	The data is owned by the caller of the function.
	The value is a NUL terminated UTF-8 string.
`instance_type`	`GType`
	The instance type on which to override the class handler for the signal.
`class_handler`	`GCallback`
	The handler.