Wt

This method will change the state of WCheckBox and mark it as dirty (so no immediate communication to the client). After all event handling is done, Wt will collect all changes from dirty widgets and push them to the client.

So it's basically async then. Just what I needed.
Thanks.

Hi,

Not sure how exactly you define sync vs async in this context, but be sure to read on the mechanism we use for server push. The reference documentation of WApplication::enableUpdates() contains extra information, and some examples also demonstrate the concept (search for enableUpdates() in the examples directory).

Wim.

Thanks for your reply. I'll check these out.
I just want to know how much latency should I expect with 'setChecked()' and other actions, milliseconds? microseconds? or nanoseconds?

Never measured it that accurately, and in reality the answer is 'it depends'. For normal cases (so not applications with unreasonable amounts of widgets), I would expect order of magnitude milliseconds (1-100?), not in the least due to network delay.

Thanks again.

Seems I should test it myself.
I kind of hope it's much less than milliseconds, and 100ms is certainly not acceptable.