SMH_REGISTER Return Value - rc

rc (ULONG)

Return codes indicating success or the type of failure:

NO_ERROR

Function performed.
ERROR_INVALID_FUNCTION
Invalid function requested.
ERROR_INVALID_FLAG
Invalid input-flag value.
ERROR_INVALID_HNDLR_NAME
Invalid stream-handler name.
ERROR_HNDLR_REGISTERED
Stream handler is already registered.
ERROR_TOO_MANY_HANDLERS
Too many stream handlers have been registered with the Sync/Stream Manager.
ERROR_INVALID_BLOCK
Invalid pointer.

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