How can I pass variables to an OCX which expects (and returns) variables of a specific (usually C-based) datatype like word or double-word as parameters, types that don't exist in VFP ?

Example (get config info about connectionparameters with a Psion handheld) :

DWORD dwError, dwBaud, dwPort;
pPWENG->GetConfiguration(&dwError, &dwBaud, &dwPort);

Or :

DWORD dwError = 0; // Connect at 115200 on port 1
pPWENG->SetConfiguration(&dwError, 115200, 1);