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<title>A Handle To An Open BLOB</title>
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<!-- keywords: {BLOB handle} {BLOB handles} sqlite3_blob -->
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<a href="../c3ref/intro.html"><h2>SQLite C Interface</h2></a>
<h2>A Handle To An Open BLOB</h2>
</div>
<blockquote><pre>
typedef struct sqlite3_blob sqlite3_blob;
</pre></blockquote>
<p>
An instance of this object represents an open BLOB on which
<a href="../c3ref/blob_open.html">incremental BLOB I/O</a> can be performed.
Objects of this type are created by <a href="../c3ref/blob_open.html">sqlite3_blob_open()</a>
and destroyed by <a href="../c3ref/blob_close.html">sqlite3_blob_close()</a>.
The <a href="../c3ref/blob_read.html">sqlite3_blob_read()</a> and <a href="../c3ref/blob_write.html">sqlite3_blob_write()</a> interfaces
can be used to read or write small subsections of the BLOB.
The <a href="../c3ref/blob_bytes.html">sqlite3_blob_bytes()</a> interface returns the size of the BLOB in bytes.
</p><p>1 Constructor using this object: <a href="../c3ref/blob_open.html">sqlite3_blob_open()</a></p>
<p>1 Destructor using this object: <a href="../c3ref/blob_close.html">sqlite3_blob_close()</a></p>
<p>4 Methods using this object:
<a href="../c3ref/blob_bytes.html">sqlite3_blob_bytes()</a>,
<a href="../c3ref/blob_read.html">sqlite3_blob_read()</a>,
<a href="../c3ref/blob_reopen.html">sqlite3_blob_reopen()</a>,
<a href="../c3ref/blob_write.html">sqlite3_blob_write()</a></p>
<p>See also lists of
<a href="../c3ref/objlist.html">Objects</a>,
<a href="../c3ref/constlist.html">Constants</a>, and
<a href="../c3ref/funclist.html">Functions</a>.</p>
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