Function Macro

GObjectsignal_connect

Declaration

#define g_signal_connect (
  instance,
  detailed_signal,
  c_handler,
  data
)

Description

Connects a GCallback function to a signal for a particular object.

The handler will be called synchronously, before the default handler of the signal. g_signal_emit() will not return control until all handlers are called.

See memory management of signal handlers for details on how to handle the return value and memory management of data.

This function cannot fail. If the given signal doesn’t exist, a critical warning is emitted.

This function is not directly available to language bindings.

Parameters

instance

Type: -

The instance to connect to.

detailed_signal

Type: -

A string of the form “signal-name::detail”.

c_handler

Type: -

The GCallback to connect.

data

Type: -

Data to pass to c_handler calls.