I just asked the same question a couple of days back. :)

On Wednesday 12 November 2003 06:00 pm, David Eklund wrote:
> Apologies if this is documented somewhere, but I haven't been able to
> find it...
>
> When using the CURLOPT_PROGRESSFUNCTION, how often and under what
> criteria does the progress function get called? Is it based on amount of
> data pulled down (eg. for every 10 kb), after a certain amount of time
> (eg. every second), or some other basis?

I think the answer was once per second.

<snip>
>
> Finally, is there any way to change how frequently it gets called? I'm
> guessing the answer is essentially "no," but it can't hurt to ask.

no, You can't.

Thanks,

Wei

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Received on 2003-11-13