Re: How to Valid Event Handle

From: Michael J. Salamone [eMVP] (mikesa#at#entrek#dot#com)
Date: 03/29/04 

Date: Mon, 29 Mar 2004 09:18:29 -0800

Use DuplicateHandle() itself. It will return FALSE on any error. You could
then call GetLastError() to get a specific error code, which, in the case
you mention, should be ERROR_INVALID_HANDLE. 

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Entrek Software, Inc.
www.entrek.com
"John" <jvasquez@spam.getntds.com> wrote in message
news:edkg601udr2sn8mcqiv41un4d7goglgddh@4ax.com...
> 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