VerifyLicenseKeyDelegate

References
public delegate VerifyLicenseKeyDelegate
Called by Rhino to verify a license key. For details, see http://developer.rhino3d.com/guides/rhinocommon/rhinocommon-zoo-plugins/
ValidateResult VerifyLicenseKeyDelegate(string licenseKey, string validationCode, DateTime validationCodeInstallDate, bool gracePeriodExpired, out LicenseData licenseData)
licenseKey (string)A license key string. Will be null if user clicks Evaluate.
validationCode (string)An optional validation code, passed on a second call to ValidateProductKeyDelegate if the first call set LicenseData.RequiresOnlineValidation to true
validationCodeInstallDate (DateTime)The date the validation code was saved
gracePeriodExpired (bool)Whether the validation grace period has passed
licenseData (out LicenseData)Output parameter where your delegate can set return data, such as error messages to display to the user.