HTMLPreviewData Encoding¶

What is new - 8.0¶

With DataFlex 2020 fully moved to Unicode, there is no longer the need to let the HTMLPreviewData return a Base64 encoded string.

To be able to use the DataFlex Reports v8 OCX with DataFlex 19.1 and older, the COM function supports an extra parameter that tells the OCX whether to encode with Base64 or not. This means that the previewer.js from the 19.x library is not compatible with the previewer.js from the 20.0 library. A version check is implemented to warn when an old or newer file is in use.