[Newbies] User Interrupt window

[Ron Teitelbaum]

I see.  You are right.  It's an instance var but there is no accessor for
it.

You will need to add an accessor for it to override the emergency
evaluator.

EventSensor >> interruptSemaphore
    "return the interruptSemaphore. Used for overriding the emergency
evaluator on MyClass"
    ^interruptSemaphore

Then it should work.

All the best,

Ron Teitelbaum

On Sat, Dec 9, 2017 at 3:38 PM, obrienj <obrienj at protonmail.com> wrote:

> 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.
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Beginners mailing list
>>> Beginners at lists.squeakfoundation.org
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>>>
>>>
>>
>
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