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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>OGR: oledb_sup.h Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.5.1 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="annotated.html"><span>Classes</span></a></li> <li id="current"><a href="files.html"><span>Files</span></a></li> <li><a href="dirs.html"><span>Directories</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>File Members</span></a></li> </ul></div><h1>oledb_sup.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/******************************************************************************</span><a name="l00002"></a>00002 <span class="comment"> * $Id: oledb_sup.h 10646 2007-01-18 02:38:10Z warmerdam $</span><a name="l00003"></a>00003 <span class="comment"> *</span><a name="l00004"></a>00004 <span class="comment"> * Project: OpenGIS Simple Features Reference Implementation</span><a name="l00005"></a>00005 <span class="comment"> * Purpose: OLE DB support functions. </span><a name="l00006"></a>00006 <span class="comment"> * Author: Frank Warmerdam, warmerdam@pobox.com</span><a name="l00007"></a>00007 <span class="comment"> *</span><a name="l00008"></a>00008 <span class="comment"> ******************************************************************************</span><a name="l00009"></a>00009 <span class="comment"> * Copyright (c) 1999, Frank Warmerdam</span><a name="l00010"></a>00010 <span class="comment"> *</span><a name="l00011"></a>00011 <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span><a name="l00012"></a>00012 <span class="comment"> * copy of this software and associated documentation files (the "Software"),</span><a name="l00013"></a>00013 <span class="comment"> * to deal in the Software without restriction, including without limitation</span><a name="l00014"></a>00014 <span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span><a name="l00015"></a>00015 <span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span><a name="l00016"></a>00016 <span class="comment"> * Software is furnished to do so, subject to the following conditions:</span><a name="l00017"></a>00017 <span class="comment"> *</span><a name="l00018"></a>00018 <span class="comment"> * The above copyright notice and this permission notice shall be included</span><a name="l00019"></a>00019 <span class="comment"> * in all copies or substantial portions of the Software.</span><a name="l00020"></a>00020 <span class="comment"> *</span><a name="l00021"></a>00021 <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS</span><a name="l00022"></a>00022 <span class="comment"> * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span><a name="l00023"></a>00023 <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL</span><a name="l00024"></a>00024 <span class="comment"> * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span><a name="l00025"></a>00025 <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span><a name="l00026"></a>00026 <span class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER</span><a name="l00027"></a>00027 <span class="comment"> * DEALINGS IN THE SOFTWARE.</span><a name="l00028"></a>00028 <span class="comment"> ****************************************************************************/</span><a name="l00029"></a>00029 <a name="l00030"></a>00030 <span class="preprocessor">#ifndef OLEDB_SUP_H_INCLUDED</span><a name="l00031"></a>00031 <span class="preprocessor"></span><span class="preprocessor">#define OLEDB_SUP_H_INCLUDED</span><a name="l00032"></a>00032 <span class="preprocessor"></span><a name="l00033"></a>00033 <span class="preprocessor">#define WIN32_LEAN_AND_MEAN // avoid the world</span><a name="l00034"></a>00034 <span class="preprocessor"></span><span class="preprocessor">#define INC_OLE2 // tell windows.h to always include ole2.h</span><a name="l00035"></a>00035 <span class="preprocessor"></span><a name="l00036"></a>00036 <span class="preprocessor">#include <windows.h></span> <span class="comment">// </span><a name="l00037"></a>00037 <span class="preprocessor">#include <ole2ver.h></span> <span class="comment">// OLE2.0 build version</span><a name="l00038"></a>00038 <span class="preprocessor">#include <cguid.h></span> <span class="comment">// GUID_NULL</span><a name="l00039"></a>00039 <span class="preprocessor">#include <stdio.h></span> <span class="comment">// vsnprintf, etc.</span><a name="l00040"></a>00040 <span class="preprocessor">#include <stddef.h></span> <span class="comment">// offsetof</span><a name="l00041"></a>00041 <span class="preprocessor">#include <stdarg.h></span> <span class="comment">// va_arg</span><a name="l00042"></a>00042 <span class="preprocessor">#include <assert.h></span> <span class="comment">// assert</span><a name="l00043"></a>00043 <a name="l00044"></a>00044 <span class="comment">// OLE DB headers</span><a name="l00045"></a>00045 <span class="preprocessor">#include <oledb.h></span><a name="l00046"></a>00046 <span class="preprocessor">#include <oledberr.h></span><a name="l00047"></a>00047 <a name="l00048"></a>00048 <span class="comment">/* -------------------------------------------------------------------- */</span><a name="l00049"></a>00049 <span class="comment">/* General error reporting. */</span><a name="l00050"></a>00050 <span class="comment">/* -------------------------------------------------------------------- */</span><a name="l00051"></a>00051 <span class="keywordtype">void</span> DumpErrorMsg( <span class="keyword">const</span> <span class="keywordtype">char</span> * );<a name="l00052"></a>00052 HRESULT DumpErrorHResult( HRESULT, <span class="keyword">const</span> <span class="keywordtype">char</span> *, ... );<a name="l00053"></a>00053 <a name="l00054"></a>00054 HRESULT AnsiToUnicode(LPCSTR pszA, LPOLESTR* ppszW);<a name="l00055"></a>00055 HRESULT UnicodeToAnsi(LPCOLESTR ppszW, LPSTR *pszA );<a name="l00056"></a>00056 HRESULT AnsiToBSTR( <span class="keyword">const</span> <span class="keywordtype">char</span> *, BSTR * );<a name="l00057"></a>00057 <a name="l00058"></a>00058 <span class="keyword">extern</span> <span class="stringliteral">"C"</span> {<a name="l00059"></a>00059 <span class="keyword">const</span> <span class="keywordtype">char</span> *VARIANTToString( VARIANT * );<a name="l00060"></a>00060 }<a name="l00061"></a>00061 <a name="l00062"></a>00062 <span class="comment">/* -------------------------------------------------------------------- */</span><a name="l00063"></a>00063 <span class="comment">/* Ole helper functions. */</span><a name="l00064"></a>00064 <span class="comment">/* -------------------------------------------------------------------- */</span><a name="l00065"></a>00065 <span class="keywordtype">int</span> OleSupInitialize();<a name="l00066"></a>00066 <span class="keywordtype">int</span> OleSupUninitialize();<a name="l00067"></a>00067 <a name="l00068"></a>00068 <span class="keywordtype">void</span> OledbSupWriteColumnInfo( FILE *, DBCOLUMNINFO * );<a name="l00069"></a>00069 <span class="keywordtype">void</span> OledbSupDumpRow( FILE *, DBCOLUMNINFO *, <span class="keywordtype">int</span>, DBBINDING *,<a name="l00070"></a>00070 ULONG, ULONG, BYTE * );<a name="l00071"></a>00071 <a name="l00072"></a>00072 <span class="comment">/* -------------------------------------------------------------------- */</span><a name="l00073"></a>00073 <span class="comment">/* Constants from sampclnt. */</span><a name="l00074"></a>00074 <span class="comment">/* -------------------------------------------------------------------- */</span><a name="l00075"></a>00075 <a name="l00076"></a>00076 <span class="comment">// Alignment for placement of each column within memory.</span><a name="l00077"></a>00077 <span class="comment">// Rule of thumb is "natural" boundary, i.e. 4-byte member should be</span><a name="l00078"></a>00078 <span class="comment">// aligned on address that is multiple of 4.</span><a name="l00079"></a>00079 <span class="comment">// Worst case is double or __int64 (8 bytes).</span><a name="l00080"></a>00080 <span class="preprocessor">#define COLUMN_ALIGNVAL 8</span><a name="l00081"></a>00081 <span class="preprocessor"></span><a name="l00082"></a>00082 <span class="preprocessor">#define MAX_GUID_STRING 42 // size of a GUID, in characters</span><a name="l00083"></a>00083 <span class="preprocessor"></span><span class="preprocessor">#define MAX_NAME_STRING 60 // size of DBCOLOD name or propid string</span><a name="l00084"></a>00084 <span class="preprocessor"></span><span class="preprocessor">#define MAX_BINDINGS 100 // size of binding array</span><a name="l00085"></a>00085 <span class="preprocessor"></span><span class="preprocessor">#define NUMROWS_CHUNK 20 // number of rows to grab at a time</span><a name="l00086"></a>00086 <span class="preprocessor"></span><span class="preprocessor">#define DEFAULT_CBMAXLENGTH 40 // cbMaxLength for binding</span><a name="l00087"></a>00087 <span class="preprocessor"></span><a name="l00088"></a>00088 <span class="comment">//-----------------------------------</span><a name="l00089"></a>00089 <span class="comment">// macros </span><a name="l00090"></a>00090 <span class="comment">//------------------------------------</span><a name="l00091"></a>00091 <a name="l00092"></a>00092 <span class="comment">// Rounding amount is always a power of two.</span><a name="l00093"></a>00093 <span class="preprocessor">#define ROUND_UP( Size, Amount ) (((DWORD)(Size) + ((Amount) - 1)) & ~((Amount) - 1))</span><a name="l00094"></a>00094 <span class="preprocessor"></span><a name="l00095"></a>00095 <span class="preprocessor">#ifndef NUMELEM</span><a name="l00096"></a>00096 <span class="preprocessor"></span><span class="preprocessor"># define NUMELEM(p) (sizeof(p)/sizeof(*p))</span><a name="l00097"></a>00097 <span class="preprocessor"></span><span class="preprocessor">#endif</span><a name="l00098"></a>00098 <span class="preprocessor"></span><a name="l00099"></a>00099 <span class="comment">//-----------------------------------</span><a name="l00100"></a>00100 <span class="comment">// type and structure definitions </span><a name="l00101"></a>00101 <span class="comment">//------------------------------------</span><a name="l00102"></a>00102 <a name="l00103"></a>00103 <span class="comment">// How to lay out each column in memory.</span><a name="l00104"></a>00104 <span class="comment">// Issue? we depend on the dwLength field being first in memory (see assert)</span><a name="l00105"></a>00105 <span class="comment">// is there another way to handle this?</span><a name="l00106"></a>00106 <span class="keyword">struct </span>COLUMNDATA <a name="l00107"></a>00107 {<a name="l00108"></a>00108 DWORD dwLength; <span class="comment">// length of data (not space allocated)</span><a name="l00109"></a>00109 DWORD dwStatus; <span class="comment">// status of column</span><a name="l00110"></a>00110 BYTE bData[1]; <span class="comment">// data here and beyond</span><a name="l00111"></a>00111 };<a name="l00112"></a>00112 <a name="l00113"></a>00113 <a name="l00114"></a>00114 <span class="comment">// Lists of value/string pairs.</span><a name="l00115"></a>00115 <span class="keyword">typedef</span> <span class="keyword">struct </span>{<a name="l00116"></a>00116 DWORD dwFlag;<a name="l00117"></a>00117 <span class="keywordtype">char</span> *szText;<a name="l00118"></a>00118 } Note;<a name="l00119"></a>00119 <a name="l00120"></a>00120 <span class="keywordtype">char</span> * GetNoteString( Note *, <span class="keywordtype">int</span>, DWORD );<a name="l00121"></a>00121 <a name="l00122"></a>00122 <span class="preprocessor">#define NOTE(s) { (DWORD) s, #s }</span><a name="l00123"></a>00123 <span class="preprocessor"></span><a name="l00124"></a>00124 <span class="preprocessor">#endif </span><span class="comment">/* ndef OLEDB_SUP_H_INCLUDED */</span></pre></div><hr>Generated for GDAL by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.1.</body></html>⌨️ 快捷键说明
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