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.

pTargetIP (PVOID) - input

A pointer to where DosUnwindException branches after calling all applicable handlers.

pERepRec (PEXCEPTIONREPORTRECORD) - input

An optional pointer to an exception record.

Set this field to 0 if it is not used.

• LONG) - input
  Optional Parameters.

  DosUnwindException can take up to 5 optional parameters containing variables to preserve on the stack. Each parameter, such as a LONG or a ULONG, must be 4 bytes in size.

  ulrc (APIRET) - returns

  Return code.

  DosUnwindException returns one of the following values:

  • NO_ERROR 1
    ERROR_INVALID_FUNCTION
    For a full list of error codes, see Control Program Programming Reference.

  ---

  [Back: DosUnwindException Return Value - ulrc]
  [Next: DosUnwindException - Remarks]