| Re: time generated event [message #34687] |
Mon, 07 April 2003 10:21 |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Lauren (lejardi@sandia.gov) writes:
> Thanks. Now the only problem I am having is killing the TIMER event
> after the timer has started to count down. I tried widget_control,
> top, /CLEAR_EVENTS but it does not seem to work. Is there another
> option?
Oh, right, you want to turn it OFF, too. :-)
Typically, we keep some kind of a timer flag in the info
structure. We turn the flag on when we start the timer:
info.timer_flag = 1
IF info.timer_flag THEN Widget_Control, info.tID, Timer=0.5
Then, if we hit the STOP button (or whatever it is that is
suppose to stop the timer) then we do something like this:
info.timer_flag = 0
Widget_Control, info.tID, /Clear_Events
In this way, the next timer event cannot get generated.
Cheers,
David
--
David W. Fanning, Ph.D.
Fanning Software Consulting, Inc.
Phone: 970-221-0438, E-mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155
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| Re: time generated event [message #34689 is a reply to message #34687] |
Mon, 07 April 2003 10:09  |
lejardi
Messages: 3
Registered: April 2003
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Junior Member |
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David Fanning <david@dfanning.com> wrote in message news:<MPG.18f7a5a76cf6ff4989b35@news.frii.com>...
> Lauren (lejardi@sandia.gov) writes:
>
>> I know that events can be generated when a button is pushed or
>> toggled. However, I need an event to be generated after given time
>> interval. Is there anyway to do this in IDL? I need the clock that is
>> counting down to the event to be non-blocking.
>
> You are looking for a TIMER event. See the TIMER keyword
> to WIDGET_CONTROL.
>
> Cheers,
>
> David
Thanks. Now the only problem I am having is killing the TIMER event
after the timer has started to count down. I tried widget_control,
top, /CLEAR_EVENTS but it does not seem to work. Is there another
option?
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| Re: time generated event [message #34702 is a reply to message #34689] |
Fri, 04 April 2003 13:23 |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Lauren (lejardi@sandia.gov) writes:
> I know that events can be generated when a button is pushed or
> toggled. However, I need an event to be generated after given time
> interval. Is there anyway to do this in IDL? I need the clock that is
> counting down to the event to be non-blocking.
You are looking for a TIMER event. See the TIMER keyword
to WIDGET_CONTROL.
Cheers,
David
--
David W. Fanning, Ph.D.
Fanning Software Consulting, Inc.
Phone: 970-221-0438, E-mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155
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