The MQ_DEPTH BIF returns the number of messages in the queue. The queue must be opened with an MQOO_INQUIRE option.
Arguments
No | Type | Required | Description | Min | Max | Min | Max |
|---|---|---|---|---|---|---|---|
1 | A | Required | Connection Handle. | 4 | 4 | ||
2 | A | Required | Queue Handle. | 4 | 4 |
Return Values
No | Type | Required | Description | Min | Max | Min | Max |
|---|---|---|---|---|---|---|---|
1 | A | Required | Status. | 20 | 20 | ||
2 | A | Required | Message. | 1 | 256 | ||
3 | P | Required | Message Depth. | 9 | 9 | 0 | 0 |