Calling GetHandleInformation before any call to CloseHandle

Question

Fact 1: Due to some client-constraints we are unable to use Exception mechanism.

Fact 2: Closing a handle which was already closed raises an Exception.

Without going through the reasons for the mention facts, will calling GetHandleInformation() to detect whether or not the handle is still valid, and only if it is calling CloseHandle() would be a good way of avoiding such an exception?

Don't close it in the first place. Fix your code properly. – David Heffernan Oct 20 '13 at 19:46 — David Heffernan, Oct 20 '13 at 19:46
After closing a handle I usually set the handle to NULL. – Stuart Oct 22 '13 at 00:52 — Stuart, Oct 22 '13 at 00:52

Paul · Accepted Answer · 2013-10-20T17:37:10.943

6

You must not access a closed handle in any way, as it may refer to a different handle due to handle recycling.

handle recycling means that any invalid handle can suddenly become valid again (but refer to an unrelated object).

Raymond Chen - The Old New Thing.

edited Oct 20 '13 at 17:37

answered Oct 20 '13 at 15:19

Paul

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Calling GetHandleInformation before any call to CloseHandle

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