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<meta name="abstract" content="To use the program or procedure that runs the Send Program Message (SNDPGMMSG) command as the base call stack entry, you can use the TOPGMQ parameter." />
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<h1 class="topictitle1">Use the command as a base</h1>
<div><p>To use the program or procedure that runs the <span class="cmdname">Send Program
Message (SNDPGMMSG)</span> command as the base call stack entry, you can
use the TOPGMQ parameter.</p>
<div class="p">If the TOPGMQ parameter specifies either TOPGMQ(*SAME *) or TOPGMQ(*PRV *),
the entry for the procedure using the <span class="cmdname">Send Program Message (SNDPGMMSG)</span> command
is used as the base. If TOPGMQ(*SAME *) is specified, the procedure will send
a message to itself. If TOPGMQ(*PRV *) is specified, the procedure will
send a message to its caller. <div class="note"><span class="notetitle">Note:</span> You should be aware of the following
information when a procedure sends a message to the caller by specifying TOPGMQ(*PRV *).
<ul><li>When CLPROC4 and CLPROC2 send a message back to the callers, the message
does not leave the containing program. The message is sent between procedures
that are within the same program. If the objective is to send a message to
CLPGM1 which is the caller of the CLPGM2, specifying TOPGMQ(*PRV *) is
not the right choice to use.</li>
<li>When CLPROC1 sends its message back to the caller, the Program Entry Procedure
is skipped. The message is sent to CLPGM1 even though the caller is the PEP.
When TOPGMQ(*PRV *) is specified, the PEP entry is <em>not visible</em> and
not included in the send operation. If TOPGMQ is specified in some other way,
the PEP is <em>visible</em> to the sender.</li>
</ul>
</div>
</div>
<p>The figure illustrates the results when CLPROC1, CLPROC2, and CLPROC4 each
send a message previous of their procedure.</p>
<div class="fignone" id="callcmdbase__sndfig2"><a name="callcmdbase__sndfig2"><!-- --></a><span class="figcap">Figure 1. Example of TOPGMQ(*PRV *)</span><br /><img src="rbafn564.gif" alt="" /><br /></div>
<div class="note"><span class="notetitle">Note:</span> The PEP is not visible to (*PRV *), so the message from
CLPROC1 will be sent to CLPGM1.</div>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="callid.htm" title="If a CL procedure is to send a message to an OPM program or another ILE procedure, you must identify the call stack entry to which the message is sent.">Identify a call stack entry</a></div>
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<div class="reltasks"><strong>Related tasks</strong><br />
<div><a href="callid.htm" title="If a CL procedure is to send a message to an OPM program or another ILE procedure, you must identify the call stack entry to which the message is sent.">Identify a call stack entry</a></div>
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