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.