Flags (MQLONG)

The initial value of this field is MQRFH_NONE. MQRFH_NONE must be specified.

MQRFH_NONE
No flags.
MQRFH_INTERNAL
The MQRFH2 header contains internally set properties.

MQRFH_INTERNAL is for queue manager use.

The top 16 bits, MQRFH_FLAGS_RESTRICTED_MASK, are reserved for flags the queue manager sets. Flags that a user might set are defined in the bottom 16 bits.