Vista - Easy to get handle from listbox. How to get listbox from handle?

Hello everyone. This maybe is easy, but I'm stuck.

I'm using visual basic.net. And this is with the enumwindows
function. But that isn't relevant.


If I have a sub that just simply will add an item to a listbox, but
takes the handle to the listbox as a parameter, how can I 'convert'
that handle back to a listbox?

It would look similar to below, except for the line that needs
fixing: lst = new listbox(lstHandle)
Any help? thanks bunches.
DougB

sub main
call addToList(listbox1.handle, "hello")
endsub


sub addToList(lstHandle as intptr, txt as string)
dim lst as listbox
lst = new listbox(lstHandle)
lst.additem (txt)
endsub