[Newbies] User Interrupt window

Ron Teitelbaum ron at usmedrec.com
Sat Dec 9 18:06:03 UTC 2017

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

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
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