Function
GObjectsignal_new_class_handler
since: 2.18
Declaration [src]
guint
g_signal_new_class_handler (
  const gchar* signal_name,
  GType itype,
  GSignalFlags signal_flags,
  GCallback class_handler,
  GSignalAccumulator accumulator,
  gpointer accu_data,
  GSignalCMarshaller c_marshaller,
  GType return_type,
  guint n_params,
  ...
)
Description [src]
Creates a new signal. (This is usually done in the class initializer.)
This is a variant of g_signal_new() that takes a C callback instead
of a class offset for the signal’s class handler. This function
doesn’t need a function pointer exposed in the class structure of
an object definition, instead the function pointer is passed
directly and can be overridden by derived classes with
g_signal_override_class_closure() or
g_signal_override_class_handler() and chained to with
g_signal_chain_from_overridden() or g_signal_chain_from_overridden_handler().
See g_signal_new() for information about signal names.
If c_marshaller is NULL, g_cclosure_marshal_generic() will be used as
the marshaller for this signal.
Available since: 2.18
This function is not directly available to language bindings.
Parameters
- signal_name
- 
            Type: 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. 
- itype
- 
            Type: GTypeThe type this signal pertains to. It will also pertain to types which are derived from this type. 
- signal_flags
- 
            Type: GSignalFlagsA combination of GSignalFlagsspecifying detail of when the default handler is to be invoked. You should at least specifyG_SIGNAL_RUN_FIRSTorG_SIGNAL_RUN_LAST.
- class_handler
- 
            Type: GCallbackA GCallbackwhich acts as class implementation of this signal. Used to invoke a class method generically. PassNULLto not associate a class method with this signal.The argument can be NULL.
- accumulator
- 
            Type: GSignalAccumulatorThe accumulator for this signal; may be NULL.The argument can be NULL.
- accu_data
- 
            Type: gpointerUser data for the accumulator.The argument can be NULL.The data is owned by the caller of the function. 
- c_marshaller
- 
            Type: GSignalCMarshallerThe function to translate arrays of parameter values to signal emissions into C language callback invocations or NULL.The argument can be NULL.
- return_type
- 
            Type: GTypeThe type of return value, or G_TYPE_NONEfor a signal without a return value.
- n_params
- 
            Type: guintThe number of parameter types to follow. 
- ...
- 
            Type: A list of types, one for each parameter.