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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html><head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>SQL Function Context Object</title>
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<a href="intro.html"><h2>SQLite C Interface</h2></a><h2>SQL Function Context Object</h2><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="../c3ref/create_function.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>See also lists of
  <a href="objlist.html">Objects</a>,
  <a href="constlist.html">Constants</a>, and
  <a href="funclist.html">Functions</a>.</p>