DosUnwindException Parameter - phandler

phandler (PEXCEPTIONREGISTRATIONRECORD) - input

A pointer to the exception registration record that describes the exception handler to be unregistered.

This parameter can have one of the following values:

Address

A pointer to the exception registration record where the unwind operation should stop.
0
UNWIND_ALL
An exit unwind operation is performed. This removes all exception handlers from the thread, and ends the thread.
-1
END_OF_CHAIN
All exception handlers for the thread are unwound.

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