[Newbies] User Interrupt window

[Ron Teitelbaum]

Notice the colon on the selector. Check instance side of EventSensor for
method.

Ron

On Sat, Dec 9, 2017, 11:46 PM obrienj <obrienj at protonmail.com> wrote:

> Now Squeak complains that installInterruptWatcher is an unknown selector.
>
>
>
> -------- Original Message --------
> Subject: Re: [Newbies] User Interrupt window
>
> Local Time: December 9, 2017 12:48 PM
> UTC Time: December 9, 2017 8:48 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>
>
> 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
>>>> http://lists.squeakfoundation.org/mailman/listinfo/beginners
>>>>
>>>>
>>>
>>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.squeakfoundation.org/pipermail/beginners/attachments/20171210/e584fccd/attachment.html>