possible to catch PC power button interrupt in qnx4?

As the subject… does anyone know if there is an easy way to catch the interrupt that is generated when a modern PCs power button is depressed (ACPI type interrupts). Anyone done this before or know of some code that will handle this?

I think Rick did some experimental work with ACPI, do a seach on www.qnxzone.com. But note that this site is not maintained anymore and is badly broken.