g_signal_connect_data (
  GObject* instance,
  const gchar* detailed_signal,
  GCallback c_handler,
  gpointer data,
  GClosureNotify destroy_data,
  GConnectFlags connect_flags


Connects a GCallback function to a signal for a particular object. Similar to g_signal_connect(), but allows to provide a GClosureNotify for the data which will be called when the signal handler is disconnected and no longer used. Specify connect_flags if you need ..._after() or ..._swapped() variants of this function.


instance GObject

The instance to connect to.

 The data is owned by the caller of the function.
detailed_signal const gchar*

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

 The data is owned by the caller of the function.
 The value is a NUL terminated UTF-8 string.
c_handler GCallback

The GCallback to connect.

data gpointer

Data to pass to c_handler calls.

 The argument can be NULL.
destroy_data GClosureNotify

A GClosureNotify for data.

 The argument can be NULL.
connect_flags GConnectFlags

A combination of GConnectFlags.

Return value

Returns: gulong

The handler ID (always greater than 0 for successful connections)