Different audio cards

[mikeoxlarge]

Hi Folks, this may have been answered omewhre already but if it has I cant find it having trawled the forum/docs a few times.

I'm writing a speaker manager (various filters) that needs to be usable on different setups, it will most certainly need asio for latency reasons, I have this working on my system but cant see how I get it to be card independant, for example I have 8 channels out on my sound card yet other cards have much less, is there a way of selecting ins and outs at runtime and not having to predefine it?

regards

Mike