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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>Exiv2: Exiv2::IptcData Class Reference</title>
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<a class="el" href="namespaceExiv2.html">Exiv2</a>::<a class="el" href="classExiv2_1_1IptcData.html">IptcData</a></div>
<h1>Exiv2::IptcData Class Reference</h1><!-- doxytag: class="Exiv2::IptcData" -->A container for Iptc data. This is a top-level class of the Exiv2 library.
<a href="#_details">More...</a>
<p>
<code>#include <iptc.hpp></code>
<p>
Collaboration diagram for Exiv2::IptcData:<p><center><img src="classExiv2_1_1IptcData__coll__graph.png" border="0" usemap="#Exiv2_1_1IptcData__coll__map" alt="Collaboration graph"></center>
<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center><a href="classExiv2_1_1IptcData-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Types</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="0d53776cd2f36e63fff78c8f142a7caf"></a><!-- doxytag: member="Exiv2::IptcData::iterator" ref="0d53776cd2f36e63fff78c8f142a7caf" args="" -->
typedef IptcMetadata::iterator </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#0d53776cd2f36e63fff78c8f142a7caf">iterator</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">IptcMetadata iterator type. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="683257be46a446865ca5f4e81b8e88d9"></a><!-- doxytag: member="Exiv2::IptcData::const_iterator" ref="683257be46a446865ca5f4e81b8e88d9" args="" -->
typedef IptcMetadata::const_iterator </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#683257be46a446865ca5f4e81b8e88d9">const_iterator</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">IptcMetadata const iterator type. <br></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td colspan="2"><div class="groupHeader">Manipulators</div></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#83d32821e26360560f48f7a1197de8c2">load</a> (const <a class="el" href="namespaceExiv2.html#16f60a5bd4207fe155f6cf93a15efa72">byte</a> *buf, long len)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Load the Iptc data from a byte buffer. The format must follow the IPTC IIM4 standard. <a href="#83d32821e26360560f48f7a1197de8c2"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classExiv2_1_1Iptcdatum.html">Iptcdatum</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#b2b58c6eda595eee09ac5f61e93070f7">operator[]</a> (const std::string &key)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns a reference to the Iptcdatum that is associated with a particular <em>key</em>. If IptcData does not already contain such an Iptcdatum, operator[] adds object <em>Iptcdatum(key)</em>. <a href="#b2b58c6eda595eee09ac5f61e93070f7"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#6c209bd981fc5073ae5effaa56d07310">add</a> (const <a class="el" href="classExiv2_1_1IptcKey.html">IptcKey</a> &key, <a class="el" href="classExiv2_1_1Value.html">Value</a> *value)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Add an Iptcdatum from the supplied key and value pair. This method copies (clones) the value. A check for non-repeatable datasets is performed. <a href="#6c209bd981fc5073ae5effaa56d07310"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#2d843afb1f9c0978b8845c741148ed27">add</a> (const <a class="el" href="classExiv2_1_1Iptcdatum.html">Iptcdatum</a> &iptcdatum)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Add a copy of the <a class="el" href="classExiv2_1_1Iptcdatum.html">Iptcdatum</a> to the Iptc metadata. A check for non-repeatable datasets is performed. <a href="#2d843afb1f9c0978b8845c741148ed27"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="56782cedd228be37bf5d1c3df77b6435"></a><!-- doxytag: member="Exiv2::IptcData::erase" ref="56782cedd228be37bf5d1c3df77b6435" args="(iterator pos)" -->
<a class="el" href="classExiv2_1_1IptcData.html#0d53776cd2f36e63fff78c8f142a7caf">iterator</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#56782cedd228be37bf5d1c3df77b6435">erase</a> (<a class="el" href="classExiv2_1_1IptcData.html#0d53776cd2f36e63fff78c8f142a7caf">iterator</a> pos)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Delete the <a class="el" href="classExiv2_1_1Iptcdatum.html">Iptcdatum</a> at iterator position pos, return the position of the next <a class="el" href="classExiv2_1_1Iptcdatum.html">Iptcdatum</a>. Note that iterators into the metadata, including pos, are potentially invalidated by this call. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ee7392b0585be4916c56f08e3c9e7be5"></a><!-- doxytag: member="Exiv2::IptcData::clear" ref="ee7392b0585be4916c56f08e3c9e7be5" args="()" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#ee7392b0585be4916c56f08e3c9e7be5">clear</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Delete all <a class="el" href="classExiv2_1_1Iptcdatum.html">Iptcdatum</a> instances resulting in an empty container. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="3db828436ee87c6d4d1d4a450b0c3c10"></a><!-- doxytag: member="Exiv2::IptcData::sortByKey" ref="3db828436ee87c6d4d1d4a450b0c3c10" args="()" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#3db828436ee87c6d4d1d4a450b0c3c10">sortByKey</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sort metadata by key. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="622ff967f192b898e05920dfbc63aabe"></a><!-- doxytag: member="Exiv2::IptcData::sortByTag" ref="622ff967f192b898e05920dfbc63aabe" args="()" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#622ff967f192b898e05920dfbc63aabe">sortByTag</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sort metadata by tag (aka dataset). <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="03385c128b29d262ade837093fddc0d2"></a><!-- doxytag: member="Exiv2::IptcData::begin" ref="03385c128b29d262ade837093fddc0d2" args="()" -->
<a class="el" href="classExiv2_1_1IptcData.html#0d53776cd2f36e63fff78c8f142a7caf">iterator</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#03385c128b29d262ade837093fddc0d2">begin</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Begin of the metadata. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="6753e8a713ab2b42a3bdc7b3d9eab401"></a><!-- doxytag: member="Exiv2::IptcData::end" ref="6753e8a713ab2b42a3bdc7b3d9eab401" args="()" -->
<a class="el" href="classExiv2_1_1IptcData.html#0d53776cd2f36e63fff78c8f142a7caf">iterator</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#6753e8a713ab2b42a3bdc7b3d9eab401">end</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">End of the metadata. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="e53fdfabd295de29b971e51cd1fa9347"></a><!-- doxytag: member="Exiv2::IptcData::findKey" ref="e53fdfabd295de29b971e51cd1fa9347" args="(const IptcKey &key)" -->
<a class="el" href="classExiv2_1_1IptcData.html#0d53776cd2f36e63fff78c8f142a7caf">iterator</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#e53fdfabd295de29b971e51cd1fa9347">findKey</a> (const <a class="el" href="classExiv2_1_1IptcKey.html">IptcKey</a> &key)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Find a <a class="el" href="classExiv2_1_1Iptcdatum.html">Iptcdatum</a> with the given key, return an iterator to it. If multiple entries with the same key exist, it is undefined which of the matching metadata is found. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="3218fa1e8cc6a8f6c75982f3fd554507"></a><!-- doxytag: member="Exiv2::IptcData::findId" ref="3218fa1e8cc6a8f6c75982f3fd554507" args="(uint16_t dataset, uint16_t record=IptcDataSets::application2)" -->
<a class="el" href="classExiv2_1_1IptcData.html#0d53776cd2f36e63fff78c8f142a7caf">iterator</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#3218fa1e8cc6a8f6c75982f3fd554507">findId</a> (uint16_t dataset, uint16_t record=IptcDataSets::application2)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Find a <a class="el" href="classExiv2_1_1Iptcdatum.html">Iptcdatum</a> with the given record and dataset it, return a const iterator to it. If multiple entries with the same Ids exists, it is undefined which of the matching metadata is found. <br></td></tr>
<tr><td colspan="2"><div class="groupHeader">Accessors</div></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="eee89e2ea157cb1e3739ccbbf239cce5"></a><!-- doxytag: member="Exiv2::IptcData::begin" ref="eee89e2ea157cb1e3739ccbbf239cce5" args="() const " -->
<a class="el" href="classExiv2_1_1IptcData.html#683257be46a446865ca5f4e81b8e88d9">const_iterator</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#eee89e2ea157cb1e3739ccbbf239cce5">begin</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Begin of the metadata. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="c209f133796a4811776e3fe85b432506"></a><!-- doxytag: member="Exiv2::IptcData::end" ref="c209f133796a4811776e3fe85b432506" args="() const " -->
<a class="el" href="classExiv2_1_1IptcData.html#683257be46a446865ca5f4e81b8e88d9">const_iterator</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#c209f133796a4811776e3fe85b432506">end</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">End of the metadata. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classExiv2_1_1DataBuf.html">DataBuf</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#35b77f4bca06079f7940f97bb0f060be">copy</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Write the Iptc data to a data buffer and return the data buffer. Caller owns this buffer. The copied data follows the IPTC IIM4 standard. <a href="#35b77f4bca06079f7940f97bb0f060be"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="cf7cb48fe542d615efaedd3175d5e541"></a><!-- doxytag: member="Exiv2::IptcData::findKey" ref="cf7cb48fe542d615efaedd3175d5e541" args="(const IptcKey &key) const " -->
<a class="el" href="classExiv2_1_1IptcData.html#683257be46a446865ca5f4e81b8e88d9">const_iterator</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#cf7cb48fe542d615efaedd3175d5e541">findKey</a> (const <a class="el" href="classExiv2_1_1IptcKey.html">IptcKey</a> &key) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Find an <a class="el" href="classExiv2_1_1Iptcdatum.html">Iptcdatum</a> with the given key, return a const iterator to it. If multiple metadata with the same key exist it is undefined which of the matching metadata is found. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="f56ada8ee4ab77c6f5a1b0924ee85be6"></a><!-- doxytag: member="Exiv2::IptcData::findId" ref="f56ada8ee4ab77c6f5a1b0924ee85be6" args="(uint16_t dataset, uint16_t record=IptcDataSets::application2) const " -->
<a class="el" href="classExiv2_1_1IptcData.html#683257be46a446865ca5f4e81b8e88d9">const_iterator</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#f56ada8ee4ab77c6f5a1b0924ee85be6">findId</a> (uint16_t dataset, uint16_t record=IptcDataSets::application2) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Find a <a class="el" href="classExiv2_1_1Iptcdatum.html">Iptcdatum</a> with the given record and dataset number, return a const iterator to it. If multiple metadata with the same Ids exist it is undefined which of the matching metadata is found. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="fda626e27ebecd599005c68022db9c1c"></a><!-- doxytag: member="Exiv2::IptcData::empty" ref="fda626e27ebecd599005c68022db9c1c" args="() const " -->
bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#fda626e27ebecd599005c68022db9c1c">empty</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return true if there is no Iptc metadata. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="b0b73759b3483b94deec4dac32e1a591"></a><!-- doxytag: member="Exiv2::IptcData::count" ref="b0b73759b3483b94deec4dac32e1a591" args="() const " -->
long </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#b0b73759b3483b94deec4dac32e1a591">count</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the number of metadata entries. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="96def22b723dfabe9ec5decfdae8574e"></a><!-- doxytag: member="Exiv2::IptcData::size" ref="96def22b723dfabe9ec5decfdae8574e" args="() const " -->
long </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1IptcData.html#96def22b723dfabe9ec5decfdae8574e">size</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return the exact size of all contained Iptc metadata. <br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
A container for Iptc data. This is a top-level class of the Exiv2 library.
<p>
Provide high-level access to the Iptc data of an image:<ul>
<li>read Iptc information from JPEG files</li><li>access metadata through keys and standard C++ iterators</li><li>add, modify and delete metadata</li><li>write Iptc data to JPEG files</li><li>extract Iptc metadata to files, insert from these files </li></ul>
<dl compact><dt><b>Examples: </b></dt><dd>
<p>
<a class="el" href="iptceasy_8cpp-example.html#_a27">iptceasy.cpp</a>, and <a class="el" href="iptcprint_8cpp-example.html#_a33">iptcprint.cpp</a>.</dl>
<p>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="2d843afb1f9c0978b8845c741148ed27"></a><!-- doxytag: member="Exiv2::IptcData::add" ref="2d843afb1f9c0978b8845c741148ed27" args="(const Iptcdatum &iptcdatum)" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
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<tr>
<td class="md" nowrap valign="top">int Exiv2::IptcData::add </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const <a class="el" href="classExiv2_1_1Iptcdatum.html">Iptcdatum</a> & </td>
<td class="mdname1" valign="top" nowrap> <em>iptcdatum</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
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</td>
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<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
</td>
<td>
<p>
Add a copy of the <a class="el" href="classExiv2_1_1Iptcdatum.html">Iptcdatum</a> to the Iptc metadata. A check for non-repeatable datasets is performed.
<p>
<dl compact><dt><b>Returns:</b></dt><dd>0 if successful;<br>
6 if the dataset already exists and is not repeatable;<br>
</dd></dl>
</td>
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<a class="anchor" name="6c209bd981fc5073ae5effaa56d07310"></a><!-- doxytag: member="Exiv2::IptcData::add" ref="6c209bd981fc5073ae5effaa56d07310" args="(const IptcKey &key, Value *value)" --><p>
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<td class="md" nowrap valign="top">int Exiv2::IptcData::add </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const <a class="el" href="classExiv2_1_1IptcKey.html">IptcKey</a> & </td>
<td class="mdname" nowrap> <em>key</em>, </td>
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<td class="md" nowrap align="right"></td>
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<td class="md" nowrap><a class="el" href="classExiv2_1_1Value.html">Value</a> * </td>
<td class="mdname" nowrap> <em>value</em></td>
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<td class="md"></td>
<td class="md">) </td>
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<p>
Add an Iptcdatum from the supplied key and value pair. This method copies (clones) the value. A check for non-repeatable datasets is performed.
<p>
<dl compact><dt><b>Returns:</b></dt><dd>0 if successful;<br>
6 if the dataset already exists and is not repeatable </dd></dl>
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<a class="anchor" name="35b77f4bca06079f7940f97bb0f060be"></a><!-- doxytag: member="Exiv2::IptcData::copy" ref="35b77f4bca06079f7940f97bb0f060be" args="() const " --><p>
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<td class="md" nowrap valign="top"><a class="el" href="classExiv2_1_1DataBuf.html">DataBuf</a> Exiv2::IptcData::copy </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const</td>
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<p>
Write the Iptc data to a data buffer and return the data buffer. Caller owns this buffer. The copied data follows the IPTC IIM4 standard.
<p>
<dl compact><dt><b>Returns:</b></dt><dd>Data buffer containing the Iptc data. </dd></dl>
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<a class="anchor" name="83d32821e26360560f48f7a1197de8c2"></a><!-- doxytag: member="Exiv2::IptcData::load" ref="83d32821e26360560f48f7a1197de8c2" args="(const byte *buf, long len)" --><p>
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<td class="md" nowrap valign="top">int Exiv2::IptcData::load </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const <a class="el" href="namespaceExiv2.html#16f60a5bd4207fe155f6cf93a15efa72">byte</a> * </td>
<td class="mdname" nowrap> <em>buf</em>, </td>
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<td class="md" nowrap align="right"></td>
<td class="md"></td>
<td class="md" nowrap>long </td>
<td class="mdname" nowrap> <em>len</em></td>
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<td class="md"></td>
<td class="md">) </td>
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<p>
Load the Iptc data from a byte buffer. The format must follow the IPTC IIM4 standard.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>buf</em> </td><td>Pointer to the data buffer to read from </td></tr>
<tr><td valign="top"></td><td valign="top"><em>len</em> </td><td>Number of bytes in the data buffer </td></tr>
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</dl>
<dl compact><dt><b>Returns:</b></dt><dd>0 if successful;<br>
5 if Iptc data is invalid or corrupt;<br>
</dd></dl>
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<a class="anchor" name="b2b58c6eda595eee09ac5f61e93070f7"></a><!-- doxytag: member="Exiv2::IptcData::operator[]" ref="b2b58c6eda595eee09ac5f61e93070f7" args="(const std::string &key)" --><p>
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<td class="md" nowrap valign="top"><a class="el" href="classExiv2_1_1Iptcdatum.html">Iptcdatum</a> & Exiv2::IptcData::operator[] </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const std::string & </td>
<td class="mdname1" valign="top" nowrap> <em>key</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
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<p>
Returns a reference to the Iptcdatum that is associated with a particular <em>key</em>. If IptcData does not already contain such an Iptcdatum, operator[] adds object <em>Iptcdatum(key)</em>.
<p>
<dl compact><dt><b>Note:</b></dt><dd>Since operator[] might insert a new element, it can't be a const member function. </dd></dl>
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<hr>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="iptc_8hpp.html">iptc.hpp</a><li>iptc.cpp</ul>
<hr size="1"><address style="align: right;"><small>Generated on Fri Jun 2 23:55:00 2006 for Exiv2 by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.6 </small></address>
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