5.12 OEIUPACIsLicensed

bool OEIUPACIsLicensed(const char *features = 0, unsigned int *expdate = 0)

Determine 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 of OEIUPAC's functionality.

The ``features'' argument can be used to check for a valid license to OEIUPAC along with that feature. For example, to verify that OEIUPAC can be used from Python:

if (!OEIUPACIsLicensed("python"))
  OEThrow.Warning("OEIUPAC is not licensed for the python feature");

The second argument can be used to get the expiration date of the license. This is an array of size three with the date returned as {day, month, year}. Even if the function returns false due to an expired license, the expdate will show that expiration date. A value of a zeroes implies that no license or date was found.

unsigned int expdate[3];
if (OEIUPACIsLicensed(0, expdate))
{
  OEThrow.Info("License expires: day: %d  month: %d year: %d",
                expdate[0], expdate[1], expdate[2]);
}

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