OPOS control to new hardware

[Pino9999999]

Hi,

I'd like to create an OPOS control for a machine that offers cash-changer functionality.
I program in VC++ / Visual Studio and I'd like to know how to create the OPOS object that interacts with the hardware, i.e. which wizard to call?
ATL COM AppWizard or MFC ActiveX ControlWizard?
and which options do I have to select for the object to be generated correctly?
If you have any suggestions and/or code samples of any kind, it would be greatly appreciated.
It's probably a stupid question with a very simple answer, but I just don't seem to be able to figure it out :-].

Thank you in advance for your help,
/Pino

 

[gfcassociates]

you need to know all the embeded hardware codes