26 Jul
2007
26 Jul
'07
3:19 p.m.
Associate each fader with a callback, or alternatively
create a
generic_handler() type callback and use the "path" variable to
differentiate. You could, for example, write a single callback, but
associate multiple messages to the same callback. In the callback,
use "path" to figure out which fader has been specified. It depends
how dynamic your program is. If the number of faders is hard-coded,
it may be simpler to have a callback for each one.
I should have mentioned here that of course you also have a
"user_data" variable available for the callbacks. So you can register
the same callback function for several faders but differentiate them
by sending a different pointer or index in the user_data variable for
each fader.
Steve