Re: Intermittent work in UI thread

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Use WM_TIMER. Every 60,000 ms you process a timer message that starts the process. If
the process is paused, you kill the timer; if it is started again, restart the timer:

UWM_START_WATCHING: SetTimer(60000, IDT_WATCHER, NULL);
UWM_STOP_WATCHING: KillTimer(IDT_WATCHER);
WM_TIMER: for IDT_WATCHER, do DB query processing, updates

Note that no aspect of this thread will touch any window.

IDT_WATCHER is some value you invent to designate the timer
joe

On Mon, 15 Oct 2007 19:43:10 +0100, Pedro Ferreira <none@xxxxxxxx> wrote:

Hi,

I'm trying to create a UI thread to do constant background work, but I'm
having some design problems.

The thread needs to fetch records from a database. do some processing on
each record and, when there are no more records, sleep for 1 minute
before check the database again. The process will be controlled with
thread messages (to start, pause, query...).

My problem is where should I put the processing work. I need it to be
responsive between cycles, where the process waits for 1 minute, so I
can stop it in that period. My only idea is using OnIdle to do the work.
But then, how should I make it real idle when waiting for 1 minute?

Could anyone give some hints on what is the way to go?

Thanks

Pedro Ferreira
Joseph M. Newcomer [MVP]
email: newcomer@xxxxxxxxxxxx
Web: http://www.flounder.com
MVP Tips: http://www.flounder.com/mvp_tips.htm
.

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