>As an aside: how difficult would you expect it to be to write in VC++ a Bootstrap or HTML5 rendering engine for VFP forms and controls including links back to events in the VFP form?

TEXTMERGE? (although TextMerge is actually very slow because it does some weird file based processing behind the scenes).

This is something that you can do in FoxPro (as Web Connection does) and it's not really a performance problem especially for using compiled templates (ie. templates as code) as Web Connection Scripts do. If you're going to interact with FoxPro expressions in the templates any major C++ perf gains I think would be neglible compared with the interaction and internal FoxPro processing. Doing this sort of thing in C++ code also would be a considerably difficult process - there's a lot of nasty string processing that needs to happen to do this right.

What do you think you would get beyond a FoxPro solution? AFAIK I haven't heard of the script or even the template rendering being a bottle neck in big applications. The bottleneck invariably is always long running FoxPro code operations, not the string output generation thanks to the string optimizations Calvin made in VFP 8 and 9.