# getValue method

Uint8List getValue()

Gets the A byte array that contains the value of the certificate extension.

return A byte array that contains the value of the certificate extension. throws BiosealException An error has occurred during Bioseal Library execution.

## Implementation

    Uint8List getValue() {
      Pointer<UnsignedChar> pValue = nullptr;
      Pointer<Int> pValueSize = calloc();
      pValueSize[0] = -1;
      try {
        var err = biosealSDK.id3BiosealCertificateExtension_GetValue(_pHandle.value, pValue, pValueSize);
        if (err == BiosealError.insufficientBuffer.value) {
          pValue = calloc.allocate(pValueSize.value);
          err = biosealSDK.id3BiosealCertificateExtension_GetValue(_pHandle.value, pValue, pValueSize);
        }
        if (err != BiosealError.success.value) {
          throw BiosealException(err);
        }
        final vValue = Uint8List.fromList(pValue.cast<Uint8>().asTypedList(pValueSize.value));
        return vValue;
      } finally {
        calloc.free(pValue);
        calloc.free(pValueSize);
      }
    }