1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
<!DOCTYPE html>
<html><head>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link href="../sqlite.css" rel="stylesheet">
<title>SQL Function Context Object</title>
<!-- path=../ -->
</head>
<body>
<div class=nosearch>
<a href="../index.html">
<img class="logo" src="../images/sqlite370_banner.gif" alt="SQLite" border="0">
</a>
<div><!-- IE hack to prevent disappearing logo --></div>
<div class="tagline desktoponly">
Small. Fast. Reliable.<br>Choose any three.
</div>
<div class="menu mainmenu">
<ul>
<li><a href="../index.html">Home</a>
<li class='mobileonly'><a href="javascript:void(0)" onclick='toggle_div("submenu")'>Menu</a>
<li class='wideonly'><a href='../about.html'>About</a>
<li class='desktoponly'><a href="../docs.html">Documentation</a>
<li class='desktoponly'><a href="../download.html">Download</a>
<li class='wideonly'><a href='../copyright.html'>License</a>
<li class='desktoponly'><a href="../support.html">Support</a>
<li class='desktoponly'><a href="../prosupport.html">Purchase</a>
<li class='search' id='search_menubutton'>
<a href="javascript:void(0)" onclick='toggle_search()'>Search</a>
</ul>
</div>
<div class="menu submenu" id="submenu">
<ul>
<li><a href='../about.html'>About</a>
<li><a href='../docs.html'>Documentation</a>
<li><a href='../download.html'>Download</a>
<li><a href='../support.html'>Support</a>
<li><a href='../prosupport.html'>Purchase</a>
</ul>
</div>
<div class="searchmenu" id="searchmenu">
<form method="GET" action="../search">
<select name="s" id="searchtype">
<option value="d">Search Documentation</option>
<option value="c">Search Changelog</option>
</select>
<input type="text" name="q" id="searchbox" value="">
<input type="submit" value="Go">
</form>
</div>
</div>
<script>
function toggle_div(nm) {
var w = document.getElementById(nm);
if( w.style.display=="block" ){
w.style.display = "none";
}else{
w.style.display = "block";
}
}
function toggle_search() {
var w = document.getElementById("searchmenu");
if( w.style.display=="block" ){
w.style.display = "none";
} else {
w.style.display = "block";
setTimeout(function(){
document.getElementById("searchbox").focus()
}, 30);
}
}
function div_off(nm){document.getElementById(nm).style.display="none";}
window.onbeforeunload = function(e){div_off("submenu");}
/* Disable the Search feature if we are not operating from CGI, since */
/* Search is accomplished using CGI and will not work without it. */
if( !location.origin || !location.origin.match || !location.origin.match(/http/) ){
document.getElementById("search_menubutton").style.display = "none";
}
/* Used by the Hide/Show button beside syntax diagrams, to toggle the */
function hideorshow(btn,obj){
var x = document.getElementById(obj);
var b = document.getElementById(btn);
if( x.style.display!='none' ){
x.style.display = 'none';
b.innerHTML='show';
}else{
x.style.display = '';
b.innerHTML='hide';
}
return false;
}
var antiRobot = 0;
function antiRobotGo(){
if( antiRobot!=3 ) return;
antiRobot = 7;
var j = document.getElementById("mtimelink");
if(j && j.hasAttribute("data-href")) j.href=j.getAttribute("data-href");
}
function antiRobotDefense(){
document.body.onmousedown=function(){
antiRobot |= 2;
antiRobotGo();
document.body.onmousedown=null;
}
document.body.onmousemove=function(){
antiRobot |= 2;
antiRobotGo();
document.body.onmousemove=null;
}
setTimeout(function(){
antiRobot |= 1;
antiRobotGo();
}, 100)
antiRobotGo();
}
antiRobotDefense();
</script>
<!-- keywords: sqlite3_context -->
<div class=nosearch>
<a href="intro.html"><h2>SQLite C Interface</h2></a>
<h2>SQL Function Context Object</h2>
</div>
<blockquote><pre>
typedef struct sqlite3_context sqlite3_context;
</pre></blockquote>
<p>
The context in which an SQL function executes is stored in an
sqlite3_context object. A pointer to an sqlite3_context object
is always first parameter to <a href="../appfunc.html">application-defined SQL functions</a>.
The application-defined SQL function implementation will pass this
pointer through into calls to <a href="../c3ref/result_blob.html">sqlite3_result()</a>,
<a href="../c3ref/aggregate_context.html">sqlite3_aggregate_context()</a>, <a href="../c3ref/user_data.html">sqlite3_user_data()</a>,
<a href="../c3ref/context_db_handle.html">sqlite3_context_db_handle()</a>, <a href="../c3ref/get_auxdata.html">sqlite3_get_auxdata()</a>,
and/or <a href="../c3ref/get_auxdata.html">sqlite3_set_auxdata()</a>.
</p><p>26 Methods:
<div class='columns' style='columns: 17em auto;'>
<ul style='padding-top:0;'>
<li><a href='../c3ref/aggregate_context.html'>sqlite3_aggregate_context</a></li>
<li><a href='../c3ref/context_db_handle.html'>sqlite3_context_db_handle</a></li>
<li><a href='../c3ref/get_auxdata.html'>sqlite3_get_auxdata</a></li>
<li><a href='../c3ref/result_blob.html'>sqlite3_result_blob</a></li>
<li><a href='../c3ref/result_blob.html'>sqlite3_result_blob64</a></li>
<li><a href='../c3ref/result_blob.html'>sqlite3_result_double</a></li>
<li><a href='../c3ref/result_blob.html'>sqlite3_result_error</a></li>
<li><a href='../c3ref/result_blob.html'>sqlite3_result_error16</a></li>
<li><a href='../c3ref/result_blob.html'>sqlite3_result_error_code</a></li>
<li><a href='../c3ref/result_blob.html'>sqlite3_result_error_nomem</a></li>
<li><a href='../c3ref/result_blob.html'>sqlite3_result_error_toobig</a></li>
<li><a href='../c3ref/result_blob.html'>sqlite3_result_int</a></li>
<li><a href='../c3ref/result_blob.html'>sqlite3_result_int64</a></li>
<li><a href='../c3ref/result_blob.html'>sqlite3_result_null</a></li>
<li><a href='../c3ref/result_blob.html'>sqlite3_result_pointer</a></li>
<li><a href='../c3ref/result_subtype.html'>sqlite3_result_subtype</a></li>
<li><a href='../c3ref/result_blob.html'>sqlite3_result_text</a></li>
<li><a href='../c3ref/result_blob.html'>sqlite3_result_text16</a></li>
<li><a href='../c3ref/result_blob.html'>sqlite3_result_text16be</a></li>
<li><a href='../c3ref/result_blob.html'>sqlite3_result_text16le</a></li>
<li><a href='../c3ref/result_blob.html'>sqlite3_result_text64</a></li>
<li><a href='../c3ref/result_blob.html'>sqlite3_result_value</a></li>
<li><a href='../c3ref/result_blob.html'>sqlite3_result_zeroblob</a></li>
<li><a href='../c3ref/result_blob.html'>sqlite3_result_zeroblob64</a></li>
<li><a href='../c3ref/get_auxdata.html'>sqlite3_set_auxdata</a></li>
<li><a href='../c3ref/user_data.html'>sqlite3_user_data</a></li>
</ul>
</div>
</p>
<p>See also lists of
<a href="objlist.html">Objects</a>,
<a href="constlist.html">Constants</a>, and
<a href="funclist.html">Functions</a>.</p>
|
