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<h1 class="topictitle1">Message queues</h1>
<div><p>If you set CCSID processing on, system-supplied display files and
printer files that display or print messages convert the CCSID of the message
queue to the CCSID of the job before displaying or printing the messages.</p>
<p>To print and display the messages correctly, your job CCSID setting must
be the same as the code page portion of your device CHRID setting.</p>
<p>All messages that existed on a message queue that was created
in a release before V3R1 of the operating system are assigned CCSID 65535
on the first use of that message.</p>
<div class="section"><h4 class="sectiontitle">Determine the CCSID of a message queue</h4><p>To determine
the CCSID of a message queue, follow these steps:</p>
<ol><li>Type <pre>DSPMSG MSGQ(MYLIB/MYMSGQ) ASTLVL(*BASIC)</pre>
where
MYLIB is the library in which the message queue is stored and MYMSGQ is the
name of the message queue.</li>
<li>Press F22 (Display list details).</li>
</ol>
<div class="note"><span class="notetitle">Note:</span> You can also use the Retrieve Message Queue Attributes (QMHRMQAT)
application programming interface (API) to determine the CCSID of a message
queue.</div>
<p>For job message queues, system reply lists,
and the history log, the object-level CCSID is always 65534. You cannot change
nor display object-level CCSIDs for job message queues, system reply lists,
and the history log.</p>
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<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="rbagsccsidmsgsup2.htm" title="Use CCSID support for handling messages and message catalogs on i5/OS.">CCSID support for messages</a></div>
</div>
<div class="relconcepts"><strong>Related concepts</strong><br />
<div><a href="rbagsjobmsgqueccsidsuprt.htm" title="The CCSID for all job message queues is 65534. You cannot change or display this value. A job message queue CCSID of 65534 requires fewer CCSID conversions. Fewer CCSID conversions of text result in better performance and improved data integrity.">Job message queues</a></div>
<div><a href="rbagssysreplstccsidsuprt.htm" title="The system reply list has a CCSID of 65534. You cannot change or display this value.">System reply list</a></div>
</div>
<div class="reltasks"><strong>Related tasks</strong><br />
<div><a href="rbagshistlogccsidsuprt.htm" title="The history log is a database file that is tagged with CCSID 65535. You cannot change the CCSID of the history log. No conversions occur when you do database retrievals from the history file.">History log</a></div>
</div>
<div class="relref"><strong>Related reference</strong><br />
<div><a href="../apis/QMHRMQAT.htm">Retrieve Nonprogram Message Queue Attributes (QMHRMQAT) API</a></div>
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