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27<helpdocument version="1.0">
28<meta>
29<topic id="textsbasicshared03104000xml" indexer="include" status="PUBLISH">
30<title id="tit" xml-lang="en-US">IsMissing function [Runtime]</title>
31<filename>/text/sbasic/shared/03104000.xhp</filename>
32</topic>
33<history>
34<created date="2003-10-31T00:00:00">Sun Microsystems, Inc.</created>
35<lastedited date="2004-08-24T13:02:38">converted from old format - fpe</lastedited>
36</history>
37</meta>
38<body>
39<section id="ismissing">
40<bookmark xml-lang="en-US" branch="index" id="bm_id3153527"><bookmark_value>IsMissing function</bookmark_value>
41</bookmark>
42<paragraph role="heading" id="hd_id3153527" xml-lang="en-US" level="1" l10n="U" oldref="1"><link href="text/sbasic/shared/03104000.xhp" name="IsMissing function [Runtime]">IsMissing function [Runtime]</link></paragraph>
43<paragraph role="paragraph" id="par_id3153825" xml-lang="en-US" l10n="U" oldref="2">Tests if a function is called with an optional parameter.</paragraph>
44</section>
45<paragraph role="paragraph" id="par_id3150669" xml-lang="en-US" l10n="U" oldref="3">See also: <link href="text/sbasic/shared/03104100.xhp" name="Optional">Optional</link></paragraph>
46<paragraph role="heading" id="hd_id3145611" xml-lang="en-US" level="2" l10n="U" oldref="4">Syntax:</paragraph>
47<paragraph role="paragraph" id="par_id3154924" xml-lang="en-US" l10n="U" oldref="5">IsMissing( ArgumentName )</paragraph>
48<paragraph role="heading" id="hd_id3145069" xml-lang="en-US" level="2" l10n="U" oldref="6">Parameters:</paragraph>
49<paragraph role="paragraph" id="par_id3149457" xml-lang="en-US" l10n="U" oldref="7">
50<emph>ArgumentName:</emph> the name of an optional argument.</paragraph>
51<paragraph role="paragraph" id="par_id3150398" xml-lang="en-US" l10n="U" oldref="8">If the IsMissing function is called by the ArgumentName, then True is returned.</paragraph>
52<paragraph role="paragraph" id="par_id3148798" xml-lang="en-US" l10n="U" oldref="9">See also <link href="text/sbasic/guide/sample_code.xhp" name="Examples">Examples</link>.</paragraph>
53<embed href="text/sbasic/shared/00000003.xhp#errorcode"/>
54<embed href="text/sbasic/shared/00000003.xhp#err5"/>
55</body>
56</helpdocument>
57