68 lines
3.7 KiB
HTML
68 lines
3.7 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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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2005" />
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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="IA4HierarchyFolder::GetColumnInfo" />
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<meta name="DC.Relation" scheme="URI" content="rzakxia4hierarchyifspec.htm" />
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>IA4HierarchyFolder::GetColumnInfo</title>
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</head>
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<body id="rzakxia4hfgetcolumninfo"><a name="rzakxia4hfgetcolumninfo"><!-- --></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">IA4HierarchyFolder::GetColumnInfo</h1>
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<div><p><strong>Purpose</strong></p>
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<p>Returns a data structure that describes the columns needed to display the
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contents of a particular folder in a details view. This is an optional member
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function.</p>
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<p><strong>Syntax</strong></p>
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<pre>HRESULT STDMETHODCALLTYPE GetColumnInfo(
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LPVOID* ppvInfo
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);</pre>
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<p><strong>Parameters</strong></p>
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<dl><dt class="dlterm">ppvInfo</dt>
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<dd> <p>The returned data structure. The returned structure should consist
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of an instance of the A4hyfColumnInfo structure. This structure contains an
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array of A4hyfColumnItem structures, one for each column in the list view.</p>
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<p>Each
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column item structure supplies the translated string for the column heading,
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the default width of the column, and an integer value that uniquely identifies
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the data field that supplies data for the column. Refer to CWBA4HYF.H.</p>
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</dd>
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</dl>
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<p><strong>Return Codes</strong></p>
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<p>Returns NOERROR if successful or E_NOTIMPL if unable to implement the function.</p>
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<p><strong>Comments</strong></p>
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<p>iSeries™ Navigator
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calls this function after the call to Open has returned, to create the column
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headings for a details view.</p>
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<p>If this function is not implemented, the Navigator will insert two columns:
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Name and Description. GetColumnDataItem must be capable of returning data
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for these two fields, which are identified with integer values of 0 and 1,
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respectively.</p>
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<p>Use the Windows<sup>®</sup> IMalloc interface to allocate memory for
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the returned structures. The Navigator will be responsible for deleting this
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memory.</p>
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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="rzakxia4hierarchyifspec.htm" title="An item identifier, or data entity, identifies all folders and objects in the Windows namespace. Item identifiers are like filenames in a hierarchical file system. The Windows namespace is, in fact, a hierarchical namespace with its root at the Desktop.">IA4HierarchyFolder interface specifications listing</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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