[julia-users] ccall, dlopen when dll contains a class

[discentem . nimis]

I am attempting to use ccall with to a function inside a class in a DLL.

The function is "Start", and it is a member of "DSS", in DLL "TestDLL.dll"

dlopen returns a pointer, but how do I reference the CLASS? I have seen the 
example work for ccall:

ccall((:GetKeyState,"User32"), stdcall, Uint16, (Ptr{Uint16},), 20)

but I have tried both below. 

ccall((:Start, "TestDLL.DSS"), stdcall, Uint16, (Ptr{Uint16},), 0)
ccall((:DSS.Start, "TestDLL"), stdcall, Uint16, (ptr{Uint16},), 0)

Thank you!