65 lines
4.2 KiB
HTML
65 lines
4.2 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<meta name="DC.Title" content="Design application programs that process double-byte data" />
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<meta name="abstract" content="There are certain considerations when designing application programs that process double-byte data, as discussed in this topic." />
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<meta name="description" content="There are certain considerations when designing application programs that process double-byte data, as discussed in this topic." />
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<meta name="DC.subject" content="character generator utility (CGU), use" />
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<meta name="keywords" content="character generator utility (CGU), use" />
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<title>Design application programs that process double-byte data</title>
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</head>
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<body id="rbal3desappdbd"><a name="rbal3desappdbd"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Design application programs that process double-byte data</h1>
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<div><p>There are certain considerations when designing application programs
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that process double-byte data, as discussed in this topic.</p>
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<div class="section"><div class="p">Design your application programs for processing double-byte data
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in the same way you design application programs for processing alphanumeric
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data, with the following additional considerations: <ul><li>Identify double-byte data used in the database files.</li>
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<li>Design display and printer formats that can be used with double-byte data.</li>
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<li>If needed, provide DBCS conversion as a means of entering double-byte
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data for interactive applications. Use the DDS keyword for DBCS conversion
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(IGCCNV) to specify DBCS conversion in display files. Because DBCS workstations
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provide a variety of double-byte data entry methods, you are not required
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to use the <span class="keyword">iSeries™</span> DBCS conversion
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function to enter double-byte data.</li>
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<li>Create double-byte messages to be used by the program.</li>
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<li>Specify extended character processing so that the server prints and displays
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all double-byte data. See <a href="rbal3ec.htm#rbal3ec">Extended double-byte characters</a> for instructions.</li>
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<li>Determine whether additional double-byte characters need to be defined.
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User-defined characters can be defined and maintained using the character
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generator utility (CGU). Information about CGU can be found in the <cite>ADTS/400:
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Character Generator Utility</cite> book.</li>
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</ul>
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</div>
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<p>When you write application programs to process double-byte data,
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make sure that the double-byte data is always processed in a double-byte unit
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and do not split a double-byte character.</p>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rbal3apcon.htm" title="This section describes considerations for writing applications that process double-byte data.">Application program considerations for DBCS</a></div>
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</div>
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</div>
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</body>
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</html>
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