MQCURMSGS()
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Revision as of 08:01, 4 February 2013 by Yvonne.milne (Talk | contribs)
Contents
Purpose
Return the number of unread messages in the specified queue
Syntax
MQCURMSGS(<expN>)
See Also
MQCLOSE(), MQCREATE(), MQOPEN(), MQRECEIVE(), MQSEND(), MQUNLINK(), XML_DECODE(), XML_ENCODE(), XML_GATHER(), XML_SCATTER()
Description
The MQCURMSGS() function returns the current number of unread messages in the open queue specified by <expN>. The <expN> is the pointer to a queue opened with MQCREATE() or MQOPEN().
The MQCLOSE() function is used to close a queue which has been opened with MQOPEN() or MQCREATE().
Example
// Open up the queue for reading mqdes=mqopen("/myqueue") if (mqdes < 0) messagebox(strerror()+",errno="+alltrim(str(error()))) return endif // do while there are messages do while (mqcurmsgs(mqdes) > 0) // Get each message mstr=mqreceive(mqdes) if (empty(mstr)) messagebox(strerror()+",errno="+alltrim(str(error()))) return endif messagebox(mstr) enddo mqclose(mqdes)