How to Valid Event Handle

From: John (jvasquez_at_spam.getntds.com)
Date: 03/29/04 

Date: Mon, 29 Mar 2004 08:45:51 -0800

PB4.20
Developing a PCI Device Driver. Receive Event handler from Application via
ioctl. Call DuplicateHandler() to obtain a handle that I can use in the IST to
signal the application when the interrupt occurs.
How can the IST verify that the handle is valid? It's possible that the
application has terminated or closed the handle.

JV