I'm trying to periodically update some text in a prompt widget, but I can't seem to trigger a timer event. The event handler for the target widget is only ever called with draw events, and no timer events. I tried starting the timer in response to a draw event, to make sure that I was giving gx_system_timer_start the right widget, and I still don't get a timer event. Is the timer ID just a number I choose? Or does is it defined somewhere else? Looking in the GUIX docs, it just says: The parameters to this function include a pointer to the calling widget, the timer id (allowing one widget to start many timers), and the initial and reschedule timeout values. It doesn't describe what the timer ID is though.
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