Thunking (32->16)

I have read several simular examples on the Internet about Thunking
(search for LoadLibrary16 on InfoSeek or HotBot).  Problem:  none of
these examples show any solutions (on mentions a solution's existance)
for passing pointers or long integers.  

One thing I did notice... there are more examples in Delphi than C.  Go
figure.

Brendan