Hooking My Scrollbar to a Scrollbar-less Listbox

I know there's a way to do this, but I can't find the code for it. Does anyone know where I can find the Subclassing code to hook my scrollbar to a listbox, on which I have removed it's scroll bar so that I may use my own. My scrollbar has a variable for percent, if that is needed. I want it to be able to have the user scroll my scrollbar and the listbox scrolls down. Any suggestions?

look at Chris Eastwood (the one and only)
answer for similar question:
http://codeguru.developer.com/bbs/wt...age=&view=&sb=

that's to remove a scroll bar...and he already gave me that. i want to hook a NEW one on, one i made.