[Newbies] User Interrupt window

obrienj obrienj at protonmail.com
Sat Dec 9 20:38:21 UTC 2017


Tried that but Sensor doesn't know interruptSemaphore

> -------- Original Message --------
> Subject: Re: [Newbies] User Interrupt window
> Local Time: December 9, 2017 12:35 PM
> UTC Time: December 9, 2017 8:35 PM
> From: ron at usmedrec.com
> To: obrienj <obrienj at protonmail.com>
> A friendly place to get answers to even the most basic questions about Squeak. <beginners at lists.squeakfoundation.org>
>
> You can use Sensor instead.
>
> All the best,
>
> Ron Teitelbaum
>
> On Sat, Dec 9, 2017 at 2:56 PM, obrienj <obrienj at protonmail.com> wrote:
>
>> Squeak complains that it doesn't know InputSensor.
>>
>>> -------- Original Message --------
>>> Subject: Re: [Newbies] User Interrupt window
>>> Local Time: December 9, 2017 10:06 AM
>>> UTC Time: December 9, 2017 6:06 PM
>>> From: ron at usmedrec.com
>>> To: obrienj <obrienj at protonmail.com>, A friendly place to get answers to even the most basic questions about Squeak. <beginners at lists.squeakfoundation.org>
>>>
>>> Hi OBrien J
>>>
>>> One way to do this is to install a new interruptWatcher on Sensor.
>>>
>>> On the class you want to handle the message do something like
>>>
>>> Sensor installInterruptWatcher:[self userInterruptWatcher].
>>>
>>> Yourclass >> userInterruptWatcher
>>> "Wait for user interrupts and open a notifier on the active process when one occurs."
>>> | interruptSemaphore |
>>> interruptSemaphore := InputSensor interruptSemaphore.
>>> [true] whileTrue: [
>>> interruptSemaphore wait.
>>> self signal: #userInterrupt.
>>> ].
>>>
>>> Then implement your handler with something like onUserInterrupt to respond to the signal.  Or you could just call a method in your class to handle the interrupt.
>>>
>>> Hope that helps!
>>>
>>> All the best,
>>>
>>> Ron Teitelbaum
>>>
>>> On Sat, Dec 9, 2017 at 12:09 PM, obrienj <obrienj at protonmail.com> wrote:
>>>
>>>> Is there a way to intercept the 'User Interrupt'  window that pops up when the user types the interrupt key and replace it with a customized dialog window? I've used on: do: to intercept Error messages but can't seem to do the same with EventSensor messages.
>>>>
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>>>> Beginners at lists.squeakfoundation.org
>>>> http://lists.squeakfoundation.org/mailman/listinfo/beginners
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