Confused about $data=undef in API documentation

[Joseph Thames <beartham gmail com>]

Hello,

I am confused about your use of $data="" in the Glib documentation, as in:

unsigned = $instance->signal_connect ($detailed_signal, $callback, $data="">

• $detailed_signal (string)

• $callback (subroutine)

• $data (scalar) arbitrary data to be passed to each invocation of callback

Does this simply mean that undef (NULL) is the default value of the $data parameter, or does it mean that passing unique user_data to a callback is not yet supported in this API?

I am trying to figure out a way to employ a common callback function for an "unlimited" number of menu items (determined at run-time) by passing unique user_data for each signal.

This does not seem to be supported by the $builder->connect_signals method, which can only pass the same user_data to a group of unique callback functions.

Thanks in advance,

beartham



-- 
Joseph 'Bear' Thames
Meta Science Foundation
(505) 977-9024 - Cell Phone
beartham gmail com