# getData method

Uint8List getData()

Gets the image buffer data.

return Data of the image buffer object. throws DocumentException An error has occurred during Document Library execution.

## Implementation

    Uint8List getData() {
      Pointer<UnsignedChar> pData = nullptr;
      Pointer<Int> pDataSize = calloc();
      pDataSize[0] = -1;
      try {
        var err = documentSDK.id3DocumentImageBuffer_GetData(_pHandle.value, pData, pDataSize);
        if (err == DocumentError.insufficientBuffer.value) {
          pData = calloc.allocate(pDataSize.value);
          err = documentSDK.id3DocumentImageBuffer_GetData(_pHandle.value, pData, pDataSize);
        }
        if (err != DocumentError.success.value) {
          throw DocumentException(err);
        }
        final vData = Uint8List.fromList(pData.cast<Uint8>().asTypedList(pDataSize.value));
        return vData;
      } finally {
        calloc.free(pData);
        calloc.free(pDataSize);
      }
    }