## Presentation Device Driver Reference for OS/2

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### SplRegister Return Value - rc

rc (ULONG) - returns Return codes.

0 Success

ERROR_INVALID_CATEGORY(117) The protocol converter does not support the extended alert category.

ERROR_INVALID_FLAG_NUMBER(186) The protocol converter did not understand a core alert that was set.

ERROR_INVALID_HANDLE(6) The value pointed to by pulHandle is not a valid spooler alert handle. The value at *pulHandle should be set to 0 (zero) to allocate a new spooler alert handle.

ERROR_INVALID_PARAMETER(87) An invalid buffer given.

ERROR_NOT_SUPPORTED(50) The spooler on the given print server cannot support alert notification.

PMERR_SPL_SPOOLER_NOT_INSTALLED(0x4009) The spooler is not enabled.