# getSignatureDate method

DateTime? getSignatureDate()

Gets the the BioSeal signature date.

return The BioSeal signature date. throws BiosealException An error has occurred during Bioseal Library execution.

## Implementation

    DateTime? getSignatureDate() {
      DateTime signatureDate = DateTime();
      var err = biosealSDK.id3Bioseal_GetSignatureDate(_pHandle.value, signatureDate.handle);
      if (err == BiosealError.objectDoesNotExist.value) {
        signatureDate.dispose();
        return null;
      }
      if (err != BiosealError.success.value) {
        signatureDate.dispose();
        throw BiosealException(err);
      }
      return signatureDate;
    }