The Registration_IsParamRegistered function checks to see if the specified parameter index is marked as registered. Refer to Microsoft Dynamics GP ParamRegistered Values for the list of parameter ID values.
int Registration_IsParamRegistered( short productID, // The product ID registered int version, // The version of the product char* companyName, // The name of the company char* key[5], // An array of key segments int paramID // The parameter ID to check );
productID [in] The product ID that the registration key is for. version [in] The version of the registration key. companyName [in] The name of the company the product is registered to. key[5] [in] An 5 element array of null-terminated key segment strings. paramID [in] The index of the parameter to check.