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@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@usmedrec.com
To: obrienj <obrienj@protonmail.com>
A friendly place to get answers to even the most basic questions about Squeak. <beginners@lists.squeakfoundation.org>

You can use Sensor instead.

All the best,

Ron Teitelbaum

On Sat, Dec 9, 2017 at 2:56 PM, obrienj <obrienj@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@usmedrec.com
To: obrienj <obrienj@protonmail.com>, A friendly place to get answers to even the most basic questions about Squeak. <beginners@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@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@lists.squeakfoundation.org
http://lists.squeakfoundation.org/mailman/listinfo/beginners