wxTimer never times out sometimes

[Jeffrey Barish]

Robin Dunn wrote:

> Jeffrey Barish wrote:
>> Jeffrey Barish wrote:
>> 
>>>> Have you tried .Stop() then .Start()?
>>>>
>>>> - Josiah
>>> I did not try it because the documentation says that "If the timer was
>>> already running, it will be stopped by this method [start] before
>>> restarting it."  However, if you think that it might make a difference,
>>> I
>>> will try it.  At this point, I have nothing else to try, so any
>>> suggestion is welcome.
>> 
>> It's official: This sensible suggestion did not fix the problem.
>> 
>> As this is the only serious problem I have remaining in my application
>> and as I am stumped, I thought that a peek at some of the code might
>> trigger additional thoughts.
>> 
>> The function that I use to trigger the timer is this:
>> 
>>     def _startTimer(self):
>>         '''Utility function for starting the timer and activating the
>>         indicator.'''
>>         self.timer.Start(10000, True)
>>         self.ind_p.setInd()
>> 
>> The timeout event is bound to this:
>> 
>>     def doTimer(self, event):
>>         '''The timer timed out.'''
>>         print 'Timeout'
>>         self.ind_p.clrInd()
>> 
>> The _startTimer utility routine is the only place where the timer Start
>> is
>> called.  What I observe is that the indicator goes on but it never goes
>> off
>> and I never get a message from the print statement.  The fact that the
>> indicator went on tells me that the timer must have started, yet I never
>> make it to the event handler.  The binding never changes.  It is created
>> with this:
>> 
>>         self.Bind(wx.EVT_TIMER, self.doTimer, self.timer)
>> 
>> where self is the main panel.
>> 
>> Also, once the timer fails once, I can't find any way to trigger it
>> again. I keep thinking that it will trigger if I do the things that
>> normally trigger it and when it times out it will belatedly clear the
>> indicator and
>> print the message.  However, nothing I do has this effect.
>> 
>> I just stuck
>> 
>>             if self.timer.IsRunning():
>>                 print 'Started timer'
>>             else:
>>                 print 'Failed to start timer'
>> 
>> at the end of _startTimer.  It will be interesting to see whether the
>> timer thinks that it is running when the indicator fails to clear.
>> 
>> I don't have event.Skip() at the end of doTimer.  Could that be the
>> problem?
> 
> It shouldn't cause any problems.  The default handler doesn't do anything.
> 
> You didn't show the code that creates the timer object.
> 

        self.timer = wx.Timer(self, wx.ID_ANY)

where self is the main panel.
-- 
Jeffrey Barish