Method

GeglBuffersignal_connect

Declaration [src] 

glong
gegl_buffer_signal_connect (
  GeglBuffer* buffer,
  const char* detailed_signal,
  GCallback c_handler,
  gpointer data
)

Description [src]

This function should be used instead of g_signal_connect when connecting to the GeglBuffer::changed signal handler, GeglBuffer contains additional machinery to avoid the overhead of changes when no signal handler have been connected, if regular g_signal_connect is used; then no signals will be emitted.

Parameters

detailed_signal

Type: const char*

Only “changed” expected for now.

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

Type: GCallback

C function callback.

data

Type: gpointer

User data:

The argument can be NULL.
The data is owned by the caller of the function.

Return value

Type: glong

An handle like g_signal_connect.