Exception handlers can return one of the following values:
XCPT_CONTINUE_SEARCH (0x00000000)
Indicates that
the exception has not been handled. The system responds by passing the exception
to the previously installed handler in the thread's chain of exception handlers.
XCPT_CONTINUE_EXECUTION (0xFFFFFFFF)
Indicates
that the exception has been handled. OS/2 responds by dismissing the exception,
restoring the context of the thread, and continuing the execution of the
thread.