[Newbies] User Interrupt window

obrienj obrienj at protonmail.com
Sat Dec 9 19:56:44 UTC 2017


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
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