bool OEMedChemIsLicensed(const char *feature=0,
                                   unsigned int *expdate=0)

Determines whether a valid license file is present. This function may be called without a legitimate run-time license to determine whether it is safe to call any OEMedChem, OESystem or OEPlatform functionality.

The ‘features’ argument can be used to check for a valid license to OEMedChem along with that feature.