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<a href="#func-members">Functions</a> </div>
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<div class="title">Property List Class Root (Advanced)<div class="ingroups"><a class="el" href="group___h5_p.html">Property Lists (H5P)</a></div></div> </div>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>You can create and customize user-defined property list classes using the functions described below. Arbitrary user-defined properties can also be inserted into existing property lists as so-called temporary properties.</p>
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<caption border="1" style="background-color:whitesmoke;">Property list class root (Advanced) functions (H5P)</caption>
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<th>Function </th><th>Purpose </th></tr>
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<td><a class="el" href="group___p_l_c_r_a.html#gaa7978af06720106af04b9d034e57fcfa" title="Closes an existing property list class.">H5Pclose_class</a> </td><td>Closes an existing property list class. </td></tr>
<tr>
<td><a class="el" href="group___p_l_c_r_a.html#ga339a27b865cf2d57ff95a6b26e94a581" title="Copies a property from one list or class to another.">H5Pcopy_prop</a> </td><td>Copies a property from one list or class to another. </td></tr>
<tr>
<td><a class="el" href="group___p_l_c_r_a.html#ga62a1119b6ad2c33bcc9149df5e24ae12" title="Creates a new property list class.">H5Pcreate_class</a> </td><td>Creates a new property list class. </td></tr>
<tr>
<td><a class="el" href="group___p_l_c_r_a.html#ga9425ef9f3bc3ee661eca6be654aeae20" title="Compares two property lists or classes for equality.">H5Pequal</a> </td><td>Compares two property lists or classes for equality. </td></tr>
<tr>
<td><a class="el" href="group___p_l_c_r_a.html#gae135cf333c12375f3808cfe931ea9190" title="Queries whether a property name exists in a property list or class.">H5Pexist</a> </td><td>Queries whether a property name exists in a property list or class. </td></tr>
<tr>
<td><a class="el" href="group___p_l_c_r_a.html#ga798759979c37e50b1a3f3403f0231928" title="Retrieves the name of a class.">H5Pget_class_name</a> </td><td>Retrieves the name of a class. </td></tr>
<tr>
<td><a class="el" href="group___p_l_c_r_a.html#ga89f228c04207992d93fc3f2dddd860a5" title="Retrieves the parent class of a property class.">H5Pget_class_parent</a> </td><td>Retrieves the parent class of a property class. </td></tr>
<tr>
<td><a class="el" href="group___p_l_c_r_a.html#ga13f41512715a8019e89529ea093c2c43" title="Queries the number of properties in a property list or class.">H5Pget_nprops</a> </td><td>Queries the number of properties in a property list or class. </td></tr>
<tr>
<td><a class="el" href="group___p_l_c_r_a.html#gaaad1c5ad2069145e2f5397ce4ab3a93c" title="Queries the size of a property value in bytes.">H5Pget_size</a> </td><td>Queries the size of a property value in bytes. </td></tr>
<tr>
<td><a class="el" href="_h5version_8h.html#a9ccdea50538c7cfde87a9fa63ea68555">H5Pinsert</a> </td><td>Registers a temporary property with a property list. </td></tr>
<tr>
<td><a class="el" href="group___p_l_c_r_a.html#ga68bc660e09b46dcb5ea3f25b245aff60" title="Determines whether a property list is a member of a class.">H5Pisa_class</a> </td><td>Determines whether a property list is a member of a class. </td></tr>
<tr>
<td><a class="el" href="group___p_l_c_r_a.html#ga1c52aa0f6d1839798982973d7db9569e" title="Iterates over properties in a property class or list.">H5Piterate</a> </td><td>Iterates over properties in a property class or list </td></tr>
<tr>
<td><a class="el" href="_h5version_8h.html#a334ff323dfa6653ce21d0988ae7c73ba">H5Pregister</a>/<a class="el" href="group___p_l_c_r_a.html#gaefb44d3535e309ba4041e420f3712aea" title="Removes a property from a property list class.">H5Punregister</a> </td><td>Registers/removes a permanent property with/from a property list class </td></tr>
<tr>
<td><a class="el" href="group___p_l_c_r_a.html#ga2bf026d42a7823e89b6070a4cafc284b" title="Removes a property from a property list.">H5Premove</a> </td><td>Removes a property from a property list. </td></tr>
<tr>
<td><a class="el" href="group___p_l_c_r_a.html#ga971d2f700cb98ccdfcdf93a39118983b" title="Sets a property list value.">H5Pset</a>/<a class="el" href="group___p_l_c_r_a.html#ga40f1c3042011462c632844464a746db3" title="Queries the value of a property.">H5Pget</a> </td><td>Sets/queries a property list value </td></tr>
</table>
</p>
<div id="dynsection-0" onclick="return toggleVisibility(this)" class="dynheader closed" style="cursor:pointer;">
<img id="dynsection-0-trigger" src="closed.png" alt="+"/> Collaboration diagram for Property List Class Root (Advanced):</div>
<div id="dynsection-0-summary" class="dynsummary" style="display:block;">
</div>
<div id="dynsection-0-content" class="dyncontent" style="display:none;">
<div class="center"><img src="group___p_l_c_r_a.png" border="0" usemap="#agroup______p__l__c__r__a" alt=""/></div>
<map name="agroup______p__l__c__r__a" id="agroup______p__l__c__r__a">
<area shape="rect" href="group___h5_p.html" title=" " alt="" coords="5,13,156,38"/>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:gaa7978af06720106af04b9d034e57fcfa"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_l_c_r_a.html#gaa7978af06720106af04b9d034e57fcfa">H5Pclose_class</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> plist_id)</td></tr>
<tr class="memdesc:gaa7978af06720106af04b9d034e57fcfa"><td class="mdescLeft"> </td><td class="mdescRight">Closes an existing property list class. <a href="group___p_l_c_r_a.html#gaa7978af06720106af04b9d034e57fcfa">More...</a><br /></td></tr>
<tr class="separator:gaa7978af06720106af04b9d034e57fcfa"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga339a27b865cf2d57ff95a6b26e94a581"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_l_c_r_a.html#ga339a27b865cf2d57ff95a6b26e94a581">H5Pcopy_prop</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> dst_id, <a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> src_id, const char *name)</td></tr>
<tr class="memdesc:ga339a27b865cf2d57ff95a6b26e94a581"><td class="mdescLeft"> </td><td class="mdescRight">Copies a property from one list or class to another. <a href="group___p_l_c_r_a.html#ga339a27b865cf2d57ff95a6b26e94a581">More...</a><br /></td></tr>
<tr class="separator:ga339a27b865cf2d57ff95a6b26e94a581"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga62a1119b6ad2c33bcc9149df5e24ae12"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_l_c_r_a.html#ga62a1119b6ad2c33bcc9149df5e24ae12">H5Pcreate_class</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> parent, const char *name, <a class="el" href="_h5_ppublic_8h.html#ada319197260febf9494b3b47aa68c7c6">H5P_cls_create_func_t</a> create, void *create_data, <a class="el" href="_h5_ppublic_8h.html#ac040a485e75e3c0f57f175253f98cc89">H5P_cls_copy_func_t</a> copy, void *copy_data, <a class="el" href="_h5_ppublic_8h.html#ae493e8a71e9d53b8ff9dbfa7c6bff91f">H5P_cls_close_func_t</a> close, void *close_data)</td></tr>
<tr class="memdesc:ga62a1119b6ad2c33bcc9149df5e24ae12"><td class="mdescLeft"> </td><td class="mdescRight">Creates a new property list class. <a href="group___p_l_c_r_a.html#ga62a1119b6ad2c33bcc9149df5e24ae12">More...</a><br /></td></tr>
<tr class="separator:ga62a1119b6ad2c33bcc9149df5e24ae12"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga9425ef9f3bc3ee661eca6be654aeae20"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#aa8f6c28736dbd0f18388c67911d38aca">htri_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_l_c_r_a.html#ga9425ef9f3bc3ee661eca6be654aeae20">H5Pequal</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> id1, <a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> id2)</td></tr>
<tr class="memdesc:ga9425ef9f3bc3ee661eca6be654aeae20"><td class="mdescLeft"> </td><td class="mdescRight">Compares two property lists or classes for equality. <a href="group___p_l_c_r_a.html#ga9425ef9f3bc3ee661eca6be654aeae20">More...</a><br /></td></tr>
<tr class="separator:ga9425ef9f3bc3ee661eca6be654aeae20"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gae135cf333c12375f3808cfe931ea9190"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#aa8f6c28736dbd0f18388c67911d38aca">htri_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_l_c_r_a.html#gae135cf333c12375f3808cfe931ea9190">H5Pexist</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> plist_id, const char *name)</td></tr>
<tr class="memdesc:gae135cf333c12375f3808cfe931ea9190"><td class="mdescLeft"> </td><td class="mdescRight">Queries whether a property name exists in a property list or class. <a href="group___p_l_c_r_a.html#gae135cf333c12375f3808cfe931ea9190">More...</a><br /></td></tr>
<tr class="separator:gae135cf333c12375f3808cfe931ea9190"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga40f1c3042011462c632844464a746db3"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_l_c_r_a.html#ga40f1c3042011462c632844464a746db3">H5Pget</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> plist_id, const char *name, void *value)</td></tr>
<tr class="memdesc:ga40f1c3042011462c632844464a746db3"><td class="mdescLeft"> </td><td class="mdescRight">Queries the value of a property. <a href="group___p_l_c_r_a.html#ga40f1c3042011462c632844464a746db3">More...</a><br /></td></tr>
<tr class="separator:ga40f1c3042011462c632844464a746db3"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga798759979c37e50b1a3f3403f0231928"><td class="memItemLeft" align="right" valign="top">char * </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_l_c_r_a.html#ga798759979c37e50b1a3f3403f0231928">H5Pget_class_name</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> pclass_id)</td></tr>
<tr class="memdesc:ga798759979c37e50b1a3f3403f0231928"><td class="mdescLeft"> </td><td class="mdescRight">Retrieves the name of a class. <a href="group___p_l_c_r_a.html#ga798759979c37e50b1a3f3403f0231928">More...</a><br /></td></tr>
<tr class="separator:ga798759979c37e50b1a3f3403f0231928"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga89f228c04207992d93fc3f2dddd860a5"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_l_c_r_a.html#ga89f228c04207992d93fc3f2dddd860a5">H5Pget_class_parent</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> pclass_id)</td></tr>
<tr class="memdesc:ga89f228c04207992d93fc3f2dddd860a5"><td class="mdescLeft"> </td><td class="mdescRight">Retrieves the parent class of a property class. <a href="group___p_l_c_r_a.html#ga89f228c04207992d93fc3f2dddd860a5">More...</a><br /></td></tr>
<tr class="separator:ga89f228c04207992d93fc3f2dddd860a5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga13f41512715a8019e89529ea093c2c43"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_l_c_r_a.html#ga13f41512715a8019e89529ea093c2c43">H5Pget_nprops</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> id, size_t *nprops)</td></tr>
<tr class="memdesc:ga13f41512715a8019e89529ea093c2c43"><td class="mdescLeft"> </td><td class="mdescRight">Queries the number of properties in a property list or class. <a href="group___p_l_c_r_a.html#ga13f41512715a8019e89529ea093c2c43">More...</a><br /></td></tr>
<tr class="separator:ga13f41512715a8019e89529ea093c2c43"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaaad1c5ad2069145e2f5397ce4ab3a93c"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_l_c_r_a.html#gaaad1c5ad2069145e2f5397ce4ab3a93c">H5Pget_size</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> id, const char *name, size_t *size)</td></tr>
<tr class="memdesc:gaaad1c5ad2069145e2f5397ce4ab3a93c"><td class="mdescLeft"> </td><td class="mdescRight">Queries the size of a property value in bytes. <a href="group___p_l_c_r_a.html#gaaad1c5ad2069145e2f5397ce4ab3a93c">More...</a><br /></td></tr>
<tr class="separator:gaaad1c5ad2069145e2f5397ce4ab3a93c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga930e15d5f994e223bea80621ef3065d4"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_l_c_r_a.html#ga930e15d5f994e223bea80621ef3065d4">H5Pinsert2</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> plist_id, const char *name, size_t size, void *value, <a class="el" href="_h5_ppublic_8h.html#a71013bd340657c834adc61579a7a13d6">H5P_prp_set_func_t</a> set, <a class="el" href="_h5_ppublic_8h.html#a9fb7470c8fe7cd27e59586cb59bc6dc6">H5P_prp_get_func_t</a> get, <a class="el" href="_h5_ppublic_8h.html#a9400197471623296d439b208b4f91de5">H5P_prp_delete_func_t</a> prp_del, <a class="el" href="_h5_ppublic_8h.html#a7a6388bf6c82e985a8e03dac32874353">H5P_prp_copy_func_t</a> copy, <a class="el" href="_h5_ppublic_8h.html#a50c6a45d41e2b17d6d63d55d5e4bbd28">H5P_prp_compare_func_t</a> compare, <a class="el" href="_h5_ppublic_8h.html#a9401085aa26970aac50b0bc8b629f4b5">H5P_prp_close_func_t</a> close)</td></tr>
<tr class="memdesc:ga930e15d5f994e223bea80621ef3065d4"><td class="mdescLeft"> </td><td class="mdescRight">Registers a temporary property with a property list. <a href="group___p_l_c_r_a.html#ga930e15d5f994e223bea80621ef3065d4">More...</a><br /></td></tr>
<tr class="separator:ga930e15d5f994e223bea80621ef3065d4"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga68bc660e09b46dcb5ea3f25b245aff60"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#aa8f6c28736dbd0f18388c67911d38aca">htri_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_l_c_r_a.html#ga68bc660e09b46dcb5ea3f25b245aff60">H5Pisa_class</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> plist_id, <a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> pclass_id)</td></tr>
<tr class="memdesc:ga68bc660e09b46dcb5ea3f25b245aff60"><td class="mdescLeft"> </td><td class="mdescRight">Determines whether a property list is a member of a class. <a href="group___p_l_c_r_a.html#ga68bc660e09b46dcb5ea3f25b245aff60">More...</a><br /></td></tr>
<tr class="separator:ga68bc660e09b46dcb5ea3f25b245aff60"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga1c52aa0f6d1839798982973d7db9569e"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_l_c_r_a.html#ga1c52aa0f6d1839798982973d7db9569e">H5Piterate</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> id, int *idx, <a class="el" href="_h5_ppublic_8h.html#a9d7a5c4938ce5732e469f1db706949fe">H5P_iterate_t</a> iter_func, void *iter_data)</td></tr>
<tr class="memdesc:ga1c52aa0f6d1839798982973d7db9569e"><td class="mdescLeft"> </td><td class="mdescRight">Iterates over properties in a property class or list. <a href="group___p_l_c_r_a.html#ga1c52aa0f6d1839798982973d7db9569e">More...</a><br /></td></tr>
<tr class="separator:ga1c52aa0f6d1839798982973d7db9569e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaac3f957a5d3cbb4adc8b7ba2aa5f1719"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_l_c_r_a.html#gaac3f957a5d3cbb4adc8b7ba2aa5f1719">H5Pregister2</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> cls_id, const char *name, size_t size, void *def_value, <a class="el" href="_h5_ppublic_8h.html#a874ff6838c44e13eb75a80086ea18bd4">H5P_prp_create_func_t</a> create, <a class="el" href="_h5_ppublic_8h.html#a71013bd340657c834adc61579a7a13d6">H5P_prp_set_func_t</a> set, <a class="el" href="_h5_ppublic_8h.html#a9fb7470c8fe7cd27e59586cb59bc6dc6">H5P_prp_get_func_t</a> get, <a class="el" href="_h5_ppublic_8h.html#a9400197471623296d439b208b4f91de5">H5P_prp_delete_func_t</a> prp_del, <a class="el" href="_h5_ppublic_8h.html#a7a6388bf6c82e985a8e03dac32874353">H5P_prp_copy_func_t</a> copy, <a class="el" href="_h5_ppublic_8h.html#a50c6a45d41e2b17d6d63d55d5e4bbd28">H5P_prp_compare_func_t</a> compare, <a class="el" href="_h5_ppublic_8h.html#a9401085aa26970aac50b0bc8b629f4b5">H5P_prp_close_func_t</a> close)</td></tr>
<tr class="memdesc:gaac3f957a5d3cbb4adc8b7ba2aa5f1719"><td class="mdescLeft"> </td><td class="mdescRight">Registers a permanent property with a property list class. <a href="group___p_l_c_r_a.html#gaac3f957a5d3cbb4adc8b7ba2aa5f1719">More...</a><br /></td></tr>
<tr class="separator:gaac3f957a5d3cbb4adc8b7ba2aa5f1719"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga2bf026d42a7823e89b6070a4cafc284b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_l_c_r_a.html#ga2bf026d42a7823e89b6070a4cafc284b">H5Premove</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> plist_id, const char *name)</td></tr>
<tr class="memdesc:ga2bf026d42a7823e89b6070a4cafc284b"><td class="mdescLeft"> </td><td class="mdescRight">Removes a property from a property list. <a href="group___p_l_c_r_a.html#ga2bf026d42a7823e89b6070a4cafc284b">More...</a><br /></td></tr>
<tr class="separator:ga2bf026d42a7823e89b6070a4cafc284b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga971d2f700cb98ccdfcdf93a39118983b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_l_c_r_a.html#ga971d2f700cb98ccdfcdf93a39118983b">H5Pset</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> plist_id, const char *name, const void *value)</td></tr>
<tr class="memdesc:ga971d2f700cb98ccdfcdf93a39118983b"><td class="mdescLeft"> </td><td class="mdescRight">Sets a property list value. <a href="group___p_l_c_r_a.html#ga971d2f700cb98ccdfcdf93a39118983b">More...</a><br /></td></tr>
<tr class="separator:ga971d2f700cb98ccdfcdf93a39118983b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaefb44d3535e309ba4041e420f3712aea"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_l_c_r_a.html#gaefb44d3535e309ba4041e420f3712aea">H5Punregister</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> pclass_id, const char *name)</td></tr>
<tr class="memdesc:gaefb44d3535e309ba4041e420f3712aea"><td class="mdescLeft"> </td><td class="mdescRight">Removes a property from a property list class. <a href="group___p_l_c_r_a.html#gaefb44d3535e309ba4041e420f3712aea">More...</a><br /></td></tr>
<tr class="separator:gaefb44d3535e309ba4041e420f3712aea"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga91799f6cda78911e9ecc2cfaaea3a3b5"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_l_c_r_a.html#ga91799f6cda78911e9ecc2cfaaea3a3b5">H5Pregister1</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> cls_id, const char *name, size_t size, void *def_value, <a class="el" href="_h5_ppublic_8h.html#a874ff6838c44e13eb75a80086ea18bd4">H5P_prp_create_func_t</a> prp_create, <a class="el" href="_h5_ppublic_8h.html#a71013bd340657c834adc61579a7a13d6">H5P_prp_set_func_t</a> prp_set, <a class="el" href="_h5_ppublic_8h.html#a9fb7470c8fe7cd27e59586cb59bc6dc6">H5P_prp_get_func_t</a> prp_get, <a class="el" href="_h5_ppublic_8h.html#a9400197471623296d439b208b4f91de5">H5P_prp_delete_func_t</a> prp_del, <a class="el" href="_h5_ppublic_8h.html#a7a6388bf6c82e985a8e03dac32874353">H5P_prp_copy_func_t</a> prp_copy, <a class="el" href="_h5_ppublic_8h.html#a9401085aa26970aac50b0bc8b629f4b5">H5P_prp_close_func_t</a> prp_close)</td></tr>
<tr class="memdesc:ga91799f6cda78911e9ecc2cfaaea3a3b5"><td class="mdescLeft"> </td><td class="mdescRight">Registers a permanent property with a property list class. <a href="group___p_l_c_r_a.html#ga91799f6cda78911e9ecc2cfaaea3a3b5">More...</a><br /></td></tr>
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<tr class="memitem:ga6ba9694c03ae97c9f514470366a909f9"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_l_c_r_a.html#ga6ba9694c03ae97c9f514470366a909f9">H5Pinsert1</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> plist_id, const char *name, size_t size, void *value, <a class="el" href="_h5_ppublic_8h.html#a71013bd340657c834adc61579a7a13d6">H5P_prp_set_func_t</a> prp_set, <a class="el" href="_h5_ppublic_8h.html#a9fb7470c8fe7cd27e59586cb59bc6dc6">H5P_prp_get_func_t</a> prp_get, <a class="el" href="_h5_ppublic_8h.html#a9400197471623296d439b208b4f91de5">H5P_prp_delete_func_t</a> prp_delete, <a class="el" href="_h5_ppublic_8h.html#a7a6388bf6c82e985a8e03dac32874353">H5P_prp_copy_func_t</a> prp_copy, <a class="el" href="_h5_ppublic_8h.html#a9401085aa26970aac50b0bc8b629f4b5">H5P_prp_close_func_t</a> prp_close)</td></tr>
<tr class="memdesc:ga6ba9694c03ae97c9f514470366a909f9"><td class="mdescLeft"> </td><td class="mdescRight">Registers a temporary property with a property list. <a href="group___p_l_c_r_a.html#ga6ba9694c03ae97c9f514470366a909f9">More...</a><br /></td></tr>
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<tr class="memitem:gaf40518cb161ee9508da4b9c0d34553bf"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_l_c_r_a.html#gaf40518cb161ee9508da4b9c0d34553bf">H5Pencode1</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> plist_id, void *buf, size_t *nalloc)</td></tr>
<tr class="memdesc:gaf40518cb161ee9508da4b9c0d34553bf"><td class="mdescLeft"> </td><td class="mdescRight">Encodes the property values in a property list into a binary buffer. <a href="group___p_l_c_r_a.html#gaf40518cb161ee9508da4b9c0d34553bf">More...</a><br /></td></tr>
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</table>
<h2 class="groupheader">Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#gaa7978af06720106af04b9d034e57fcfa">◆ </a></span>H5Pclose_class()</h2>
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<td class="memname"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> H5Pclose_class </td>
<td>(</td>
<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
<td class="paramname"><em>plist_id</em></td><td>)</td>
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<p>Closes an existing property list class. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">plist_id</td><td>Property list class identifier</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Returns a non-negative value if successful; otherwise, returns a negative value.</dd></dl>
<p><a class="el" href="group___p_l_c_r_a.html#gaa7978af06720106af04b9d034e57fcfa" title="Closes an existing property list class.">H5Pclose_class()</a> removes a property list class from the library. Existing property lists of this class will continue to exist, but new ones are not able to be created.</p>
<dl class="section since"><dt>Since</dt><dd>1.4.0 </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ga339a27b865cf2d57ff95a6b26e94a581">◆ </a></span>H5Pcopy_prop()</h2>
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<td class="memname"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> H5Pcopy_prop </td>
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<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
<td class="paramname"><em>dst_id</em>, </td>
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<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
<td class="paramname"><em>src_id</em>, </td>
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<td class="paramtype">const char * </td>
<td class="paramname"><em>name</em> </td>
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<p>Copies a property from one list or class to another. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">dst_id</td><td>Identifier of the destination property list or class </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">src_id</td><td>Identifier of the source property list or class </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">name</td><td>Name of the property to copy</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Returns a non-negative value if successful; otherwise, returns a negative value.</dd></dl>
<p><a class="el" href="group___p_l_c_r_a.html#ga339a27b865cf2d57ff95a6b26e94a581" title="Copies a property from one list or class to another.">H5Pcopy_prop()</a> copies a property from one property list or class to another.</p>
<p>If a property is copied from one class to another, all the property information will be first deleted from the destination class and then the property information will be copied from the source class into the destination class.</p>
<p>If a property is copied from one list to another, the property will be first deleted from the destination list (generating a call to the close callback for the property, if one exists) and then the property is copied from the source list to the destination list (generating a call to the copy callback for the property, if one exists).</p>
<p>If the property does not exist in the class or list, this call is equivalent to calling <a class="el" href="_h5version_8h.html#a334ff323dfa6653ce21d0988ae7c73ba">H5Pregister()</a> or <a class="el" href="_h5version_8h.html#a9ccdea50538c7cfde87a9fa63ea68555">H5Pinsert()</a> (for a class or list, as appropriate) and the create callback will be called in the case of the property being copied into a list (if such a callback exists for the property).</p>
<dl class="section since"><dt>Since</dt><dd>1.6.0 </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ga62a1119b6ad2c33bcc9149df5e24ae12">◆ </a></span>H5Pcreate_class()</h2>
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<td class="memname"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> H5Pcreate_class </td>
<td>(</td>
<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
<td class="paramname"><em>parent</em>, </td>
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<td class="paramtype">const char * </td>
<td class="paramname"><em>name</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#ada319197260febf9494b3b47aa68c7c6">H5P_cls_create_func_t</a> </td>
<td class="paramname"><em>create</em>, </td>
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<td class="paramtype">void * </td>
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<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#ac040a485e75e3c0f57f175253f98cc89">H5P_cls_copy_func_t</a> </td>
<td class="paramname"><em>copy</em>, </td>
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<td class="paramtype">void * </td>
<td class="paramname"><em>copy_data</em>, </td>
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<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#ae493e8a71e9d53b8ff9dbfa7c6bff91f">H5P_cls_close_func_t</a> </td>
<td class="paramname"><em>close</em>, </td>
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<td class="paramtype">void * </td>
<td class="paramname"><em>close_data</em> </td>
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<p>Creates a new property list class. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">parent</td><td>Property list class identifier </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">name</td><td>Name of property list class to register </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">create</td><td>Callback routine called when a property list is created </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">create_data</td><td>Pointer to user-defined class create data, to be passed along to class create callback </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">copy</td><td>Callback routine called when a property list is copied </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">copy_data</td><td>Pointer to user-defined class copy data, to be passed along to class copy callback </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">close</td><td>Callback routine called when a property list is being closed </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">close_data</td><td>Pointer to user-defined class close data, to be passed along to class close callback</td></tr>
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</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Returns a property list class identifier if successful; otherwise returns <a class="el" href="_h5_ipublic_8h.html#a01eab13dccc91afd6909d74dccb780ba">H5I_INVALID_HID</a>.</dd></dl>
<p><a class="el" href="group___p_l_c_r_a.html#ga62a1119b6ad2c33bcc9149df5e24ae12" title="Creates a new property list class.">H5Pcreate_class()</a> registers a new property list class with the library. The new property list class can inherit from an existing property list class, <code>parent</code>, or may be derived from the default “empty” class, NULL. New classes with inherited properties from existing classes may not remove those existing properties, only add or remove their own class properties. Property list classes defined and supported in the HDF5 library distribution are listed and briefly described in <a class="el" href="group___p_l_c_r.html#gaf1b11da01d4d45d788c45f8bc5f0cbfa" title="Creates a new property list as an instance of a property list class.">H5Pcreate()</a>. The <code>create</code>, <code>copy</code>, <code>close</code> functions are called when a property list of the new class is created, copied, or closed, respectively.</p>
<p><a class="el" href="group___p_l_c_r_a.html#gaa7978af06720106af04b9d034e57fcfa" title="Closes an existing property list class.">H5Pclose_class()</a> must be used to release the property list class identifier returned by this function.</p>
<dl class="section since"><dt>Since</dt><dd>1.4.0 </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#gaf40518cb161ee9508da4b9c0d34553bf">◆ </a></span>H5Pencode1()</h2>
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<td class="memname"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> H5Pencode1 </td>
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<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
<td class="paramname"><em>plist_id</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">void * </td>
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<p>Encodes the property values in a property list into a binary buffer. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">plist_id</td><td>Property list identifier </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">buf</td><td>Buffer into which the property list will be encoded. If the provided buffer is NULL, the size of the buffer required is returned through <code>nalloc</code>; the function does nothing more. </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">nalloc</td><td>The size of the required buffer</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Returns a non-negative value if successful; otherwise, returns a negative value.</dd></dl>
<dl class="deprecated"><dt><b><a class="el" href="deprecated.html#_deprecated000072">Deprecated:</a></b></dt><dd>As of HDF5-1.12 this function has been deprecated in favor of <a class="el" href="group___p_l_c_r.html#ga37b1b6666e62a86389015e7dfc384faa" title="Encodes the property values in a property list into a binary buffer.">H5Pencode2()</a> or the macro <a class="el" href="_h5version_8h.html#af1a9ff52a69251d57ffa686102f162a8">H5Pencode()</a>.</dd></dl>
<p><a class="el" href="group___p_l_c_r_a.html#gaf40518cb161ee9508da4b9c0d34553bf" title="Encodes the property values in a property list into a binary buffer.">H5Pencode1()</a> encodes the property list <code>plist_id</code> into the binary buffer <code>buf</code>.</p>
<p>If the required buffer size is unknown, <code>buf</code> can be passed in as NULL and the function will set the required buffer size in <code>nalloc</code>. The buffer can then be created and the property list encoded with a subsequent <a class="el" href="group___p_l_c_r_a.html#gaf40518cb161ee9508da4b9c0d34553bf" title="Encodes the property values in a property list into a binary buffer.">H5Pencode1()</a> call.</p>
<p>If the buffer passed in is not big enough to hold the encoded properties, the <a class="el" href="group___p_l_c_r_a.html#gaf40518cb161ee9508da4b9c0d34553bf" title="Encodes the property values in a property list into a binary buffer.">H5Pencode1()</a> call can be expected to fail with a segmentation fault.</p>
<p>Properties that do not have encode callbacks will be skipped. There is currently no mechanism to register an encode callback for a user-defined property, so user-defined properties cannot currently be encoded.</p>
<p>Some properties cannot be encoded, particularly properties that are reliant on local context.</p>
<dl class="section since"><dt>Since</dt><dd>1.10.0 </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ga9425ef9f3bc3ee661eca6be654aeae20">◆ </a></span>H5Pequal()</h2>
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<td class="memname"><a class="el" href="_h5public_8h.html#aa8f6c28736dbd0f18388c67911d38aca">htri_t</a> H5Pequal </td>
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<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
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<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
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<p>Compares two property lists or classes for equality. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">id1</td><td>First property object to be compared </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">id2</td><td>Second property object to be compared</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Returns zero (false), a positive (true) or a negative (failure) value.</dd></dl>
<p><a class="el" href="group___p_l_c_r_a.html#ga9425ef9f3bc3ee661eca6be654aeae20" title="Compares two property lists or classes for equality.">H5Pequal()</a> compares two property lists or classes to determine whether they are equal to one another.</p>
<p>Either both <code>id1</code> and <code>id2</code> must be property lists or both must be classes; comparing a list to a class is an error.</p>
<dl class="section since"><dt>Since</dt><dd>1.4.0 </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#gae135cf333c12375f3808cfe931ea9190">◆ </a></span>H5Pexist()</h2>
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<td class="memname"><a class="el" href="_h5public_8h.html#aa8f6c28736dbd0f18388c67911d38aca">htri_t</a> H5Pexist </td>
<td>(</td>
<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
<td class="paramname"><em>plist_id</em>, </td>
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<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>name</em> </td>
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<p>Queries whether a property name exists in a property list or class. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">plist_id</td><td>Identifier for the property list or class to query </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">name</td><td>Name of property to check for</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Returns zero (false), a positive (true) or a negative (failure) value.</dd></dl>
<p><a class="el" href="group___p_l_c_r_a.html#gae135cf333c12375f3808cfe931ea9190" title="Queries whether a property name exists in a property list or class.">H5Pexist()</a> determines whether a property exists within a property list or class.</p>
<dl class="section since"><dt>Since</dt><dd>1.4.0 </dd></dl>
</div>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ga40f1c3042011462c632844464a746db3">◆ </a></span>H5Pget()</h2>
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<td class="memname"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> H5Pget </td>
<td>(</td>
<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
<td class="paramname"><em>plist_id</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>name</em>, </td>
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<td class="paramtype">void * </td>
<td class="paramname"><em>value</em> </td>
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<p>Queries the value of a property. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">plist_id</td><td>Property list identifier </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">name</td><td>Name of property to query </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">value</td><td>Pointer to a location to which to copy the value of the property</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Returns a non-negative value if successful; otherwise, returns a negative value.</dd></dl>
<p><a class="el" href="group___p_l_c_r_a.html#ga40f1c3042011462c632844464a746db3" title="Queries the value of a property.">H5Pget()</a> retrieves a copy of the value for a property in a property list. If there is a <code>get</code> callback routine registered for this property, the copy of the value of the property will first be passed to that routine and any changes to the copy of the value will be used when returning the property value from this routine.</p>
<p>This routine may be called for zero-sized properties with the <code>value</code> set to NULL. The <code>get</code> routine will be called with a NULL value if the callback exists.</p>
<p>The property name must exist or this routine will fail.</p>
<p>If the <code>get</code> callback routine returns an error, \ value will not be modified.</p>
<dl class="section since"><dt>Since</dt><dd>1.4.0 </dd></dl>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ga798759979c37e50b1a3f3403f0231928">◆ </a></span>H5Pget_class_name()</h2>
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<td class="memname">char* H5Pget_class_name </td>
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<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
<td class="paramname"><em>pclass_id</em></td><td>)</td>
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<p>Retrieves the name of a class. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pclass_id</td><td>Property list class identifier</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Returns a pointer to an allocated string containing the class name if successful, and NULL if not successful.</dd></dl>
<p><a class="el" href="group___p_l_c_r_a.html#ga798759979c37e50b1a3f3403f0231928" title="Retrieves the name of a class.">H5Pget_class_name()</a> retrieves the name of a generic property list class. The pointer to the name must be freed by the user with a call to <a class="el" href="group___h5.html#ga71872bf6445cba956da86d4762b662cf" title="Frees memory allocated by the HDF5 library.">H5free_memory()</a> after each successful call.</p>
<table class="doxtable">
<tr>
<th>Class Name (class identifier) Returned </th><th>Property List Class </th><th>Expanded Name of the Property List Class </th><th>The Class Identifier Used with H5Pcreate </th><th>Comments </th></tr>
<tr>
<td>attribute create </td><td>acpl </td><td>Attribute Creation Property List </td><td>H5P_ATTRIBUTE_CREATE </td><td></td></tr>
<tr>
<td>dataset access </td><td>dapl </td><td>Dataset Access Property List </td><td>H5P_DATASET_ACCESS </td><td></td></tr>
<tr>
<td>dataset create </td><td>dcpl </td><td>Dataset Creation Property List </td><td>H5P_DATASET_CREATE </td><td></td></tr>
<tr>
<td>data transfer </td><td>dxpl </td><td>Data Transfer Property List </td><td>H5P_DATASET_XFER </td><td></td></tr>
<tr>
<td>datatype access </td><td></td><td></td><td>H5P_DATATYPE_ACCESS </td><td>This class can be created, but there are no properties in the class currently. </td></tr>
<tr>
<td>datatype create </td><td></td><td></td><td>H5P_DATATYPE_CREATE </td><td>This class can be created, but there are no properties in the class currently. </td></tr>
<tr>
<td>file access </td><td>fapl </td><td>File Access Property List </td><td>H5P_FILE_ACCESS </td><td></td></tr>
<tr>
<td>file create </td><td>fcpl </td><td>File Creation Property List </td><td>H5P_FILE_CREATE </td><td></td></tr>
<tr>
<td>file mount </td><td>fmpl </td><td>File Mount Property List </td><td>H5P_FILE_MOUNT </td><td></td></tr>
<tr>
<td>group access </td><td></td><td></td><td>H5P_GROUP_ACCESS </td><td>This class can be created, but there are no properties in the class currently. </td></tr>
<tr>
<td>group create </td><td>gcpl </td><td>Group Creation Property List </td><td>H5P_GROUP_CREATE </td><td></td></tr>
<tr>
<td>link access </td><td>lapl </td><td>Link Access Property List </td><td>H5P_LINK_ACCESS </td><td></td></tr>
<tr>
<td>link create </td><td>lcpl </td><td>Link Creation Property List </td><td>H5P_LINK_CREATE </td><td></td></tr>
<tr>
<td>object copy </td><td>ocpypl </td><td>Object Copy Property List </td><td>H5P_OBJECT_COPY </td><td></td></tr>
<tr>
<td>object create </td><td>ocpl </td><td>Object Creation Property List </td><td>H5P_OBJECT_CREATE </td><td></td></tr>
<tr>
<td>string create </td><td>strcpl </td><td>String Creation Property List </td><td>H5P_STRING_CREATE </td><td></td></tr>
</table>
<dl class="section since"><dt>Since</dt><dd>1.4.0 </dd></dl>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ga89f228c04207992d93fc3f2dddd860a5">◆ </a></span>H5Pget_class_parent()</h2>
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<td class="memname"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> H5Pget_class_parent </td>
<td>(</td>
<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
<td class="paramname"><em>pclass_id</em></td><td>)</td>
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<p>Retrieves the parent class of a property class. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pclass_id</td><td>Property list class identifier</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Returns a parent class object identifier if successful; otherwise returns <a class="el" href="_h5_ipublic_8h.html#a01eab13dccc91afd6909d74dccb780ba">H5I_INVALID_HID</a>.</dd></dl>
<p><a class="el" href="group___p_l_c_r_a.html#ga89f228c04207992d93fc3f2dddd860a5" title="Retrieves the parent class of a property class.">H5Pget_class_parent()</a> retrieves an identifier for the parent class of a property class.</p>
<dl class="section since"><dt>Since</dt><dd>1.4.0 </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ga13f41512715a8019e89529ea093c2c43">◆ </a></span>H5Pget_nprops()</h2>
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<td class="memname"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> H5Pget_nprops </td>
<td>(</td>
<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
<td class="paramname"><em>id</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t * </td>
<td class="paramname"><em>nprops</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
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<p>Queries the number of properties in a property list or class. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">id</td><td>Identifier for property object to query </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">nprops</td><td>Number of properties in object</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Returns a non-negative value if successful; otherwise, returns a negative value.</dd></dl>
<p><a class="el" href="group___p_l_c_r_a.html#ga13f41512715a8019e89529ea093c2c43" title="Queries the number of properties in a property list or class.">H5Pget_nprops()</a> retrieves the number of properties in a property list or property list class.</p>
<p>If <code>id</code> is a property list identifier, the current number of properties in the list is returned in <code>nprops</code>.</p>
<p>If <code>id</code> is a property list class identifier, the number of registered properties in the class is returned in <code>nprops</code>.</p>
<dl class="section since"><dt>Since</dt><dd>1.4.0 </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#gaaad1c5ad2069145e2f5397ce4ab3a93c">◆ </a></span>H5Pget_size()</h2>
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<td class="memname"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> H5Pget_size </td>
<td>(</td>
<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
<td class="paramname"><em>id</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>name</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t * </td>
<td class="paramname"><em>size</em> </td>
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<p>Queries the size of a property value in bytes. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">id</td><td>Identifier of property object to query </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">name</td><td>Name of property to query </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">size</td><td>Size of property in bytes</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Returns a non-negative value if successful; otherwise, returns a negative value.</dd></dl>
<p><a class="el" href="group___p_l_c_r_a.html#gaaad1c5ad2069145e2f5397ce4ab3a93c" title="Queries the size of a property value in bytes.">H5Pget_size()</a> retrieves the size of a property's value in bytes. This function operates on both property lists and property classes.</p>
<p>Zero-sized properties are allowed and return 0.</p>
<dl class="section since"><dt>Since</dt><dd>1.4.0 </dd></dl>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ga6ba9694c03ae97c9f514470366a909f9">◆ </a></span>H5Pinsert1()</h2>
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<td class="memname"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> H5Pinsert1 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
<td class="paramname"><em>plist_id</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>name</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>size</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">void * </td>
<td class="paramname"><em>value</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a71013bd340657c834adc61579a7a13d6">H5P_prp_set_func_t</a> </td>
<td class="paramname"><em>prp_set</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a9fb7470c8fe7cd27e59586cb59bc6dc6">H5P_prp_get_func_t</a> </td>
<td class="paramname"><em>prp_get</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a9400197471623296d439b208b4f91de5">H5P_prp_delete_func_t</a> </td>
<td class="paramname"><em>prp_delete</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a7a6388bf6c82e985a8e03dac32874353">H5P_prp_copy_func_t</a> </td>
<td class="paramname"><em>prp_copy</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a9401085aa26970aac50b0bc8b629f4b5">H5P_prp_close_func_t</a> </td>
<td class="paramname"><em>prp_close</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
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<p>Registers a temporary property with a property list. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">plist_id</td><td>Property list identifier </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">name</td><td>Name of property to create </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">size</td><td>Size of property in bytes </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">value</td><td>Initial value for the property </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">prp_set</td><td>Callback routine called before a new value is copied into the property's value </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">prp_get</td><td>Callback routine called when a property value is retrieved from the property </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">prp_delete</td><td>Callback routine called when a property is deleted from a property list </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">prp_copy</td><td>Callback routine called when a property is copied from an existing property list </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">prp_close</td><td>Callback routine called when a property list is being closed and the property value will be disposed of</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Returns a non-negative value if successful; otherwise, returns a negative value.</dd></dl>
<dl class="deprecated"><dt><b><a class="el" href="deprecated.html#_deprecated000071">Deprecated:</a></b></dt><dd>As of HDF5-1.8 this function was deprecated in favor of <a class="el" href="group___p_l_c_r_a.html#ga930e15d5f994e223bea80621ef3065d4" title="Registers a temporary property with a property list.">H5Pinsert2()</a> or the macro <a class="el" href="_h5version_8h.html#a9ccdea50538c7cfde87a9fa63ea68555">H5Pinsert()</a>.</dd></dl>
<p><a class="el" href="group___p_l_c_r_a.html#ga6ba9694c03ae97c9f514470366a909f9" title="Registers a temporary property with a property list.">H5Pinsert1()</a> creates a new property in a property list. The property will exist only in this property list and copies made from it.</p>
<p>The initial property value must be provided in <code>value</code> and the property value will be set accordingly.</p>
<p>The name of the property must not already exist in this list, or this routine will fail.</p>
<p>The <code>prp_set</code> and <code>prp_get</code> callback routines may be set to NULL if they are not needed.</p>
<p>Zero-sized properties are allowed and do not store any data in the property list. The default value of a zero-size property may be set to NULL. They may be used to indicate the presence or absence of a particular piece of information.</p>
<p>The <code>prp_set</code> routine is called before a new value is copied into the property. The <a class="el" href="_h5_ppublic_8h.html#a71013bd340657c834adc61579a7a13d6">H5P_prp_set_func_t</a> callback function is defined as <a class="el" href="_h5_ppublic_8h.html#ac30e48dfeb620a9a6796a6fe2baa839f" title="Callback function for H5Pregister2(),H5Pregister1(),H5Pinsert2(),H5Pinsert1()">H5P_prp_cb2_t</a>. The <code>prp_set</code> routine may modify the value pointer to be set and those changes will be used when setting the property's value. If the <code>prp_set</code> routine returns a negative value, the new property value is not copied into the property and the <code>set</code> routine returns an error value. The <code>prp_set</code> routine will be called for the initial value.</p>
<p><b>Note:</b> The <code>prp_set</code> callback function may be useful to range check the value being set for the property or may perform some transformation or translation of the value set. The <code>prp_get</code> callback would then reverse the transformation or translation. A single <code>prp_get</code> or <code>prp_set</code> callback could handle multiple properties by performing different actions based on the property name or other properties in the property list.</p>
<p>The <code>prp_get</code> routine is called when a value is retrieved from a property value. The <a class="el" href="_h5_ppublic_8h.html#a9fb7470c8fe7cd27e59586cb59bc6dc6">H5P_prp_get_func_t</a> callback function is defined as <a class="el" href="_h5_ppublic_8h.html#ac30e48dfeb620a9a6796a6fe2baa839f" title="Callback function for H5Pregister2(),H5Pregister1(),H5Pinsert2(),H5Pinsert1()">H5P_prp_cb2_t</a>.</p>
<p>The <code>prp_get</code> routine may modify the value to be returned from the query and those changes will be preserved. If the <code>prp_get</code> routine returns a negative value, the query routine returns an error value.</p>
<p>The <code>prp_delete</code> routine is called when a property is being deleted from a property list. The <a class="el" href="_h5_ppublic_8h.html#a9400197471623296d439b208b4f91de5">H5P_prp_delete_func_t</a> callback function is defined as <a class="el" href="_h5_ppublic_8h.html#ac30e48dfeb620a9a6796a6fe2baa839f" title="Callback function for H5Pregister2(),H5Pregister1(),H5Pinsert2(),H5Pinsert1()">H5P_prp_cb2_t</a>.</p>
<p>The <code>prp_copy</code> routine is called when a new property list with this property is being created through a <code>prp_copy</code> operation. The <a class="el" href="_h5_ppublic_8h.html#a7a6388bf6c82e985a8e03dac32874353">H5P_prp_copy_func_t</a> callback function is defined as <a class="el" href="_h5_ppublic_8h.html#a2069d596a2eab8b94eaeeb2a4c60795e" title="Callback function for H5Pregister2(),H5Pregister1(),H5Pinsert2(),H5Pinsert1()">H5P_prp_cb1_t</a>.</p>
<p>The <code>prp_copy</code> routine may modify the value to be set and those changes will be stored as the new value of the property. If the <code>prp_copy</code> routine returns a negative value, the new property value is not copied into the property and the prp_copy routine returns an error value.</p>
<p>The <code>prp_close</code> routine is called when a property list with this property is being closed. The <a class="el" href="_h5_ppublic_8h.html#a9401085aa26970aac50b0bc8b629f4b5">H5P_prp_close_func_t</a> callback function is defined as <a class="el" href="_h5_ppublic_8h.html#a2069d596a2eab8b94eaeeb2a4c60795e" title="Callback function for H5Pregister2(),H5Pregister1(),H5Pinsert2(),H5Pinsert1()">H5P_prp_cb1_t</a>.</p>
<p>The <code>prp_close</code> routine may modify the value passed in, the value is not used by the library when the close routine returns. If the <code>prp_close</code> routine returns a negative value, the property list <code>prp_close</code> routine returns an error value but the property list is still closed.</p>
<p><b>Note:</b> There is no <code>prp_create</code> callback routine for temporary property list objects; the initial value is assumed to have any necessary setup already performed on it.</p>
<p>The <a class="el" href="_h5_ppublic_8h.html#a2069d596a2eab8b94eaeeb2a4c60795e" title="Callback function for H5Pregister2(),H5Pregister1(),H5Pinsert2(),H5Pinsert1()">H5P_prp_cb1_t</a> is as follows: </p><div class="fragment"><div class="line"> </div>
<div class="line"><span class="keyword">typedef</span> <a class="code" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> (*<a class="code" href="_h5_ppublic_8h.html#a2069d596a2eab8b94eaeeb2a4c60795e">H5P_prp_cb1_t</a>)(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">size_t</span> size, <span class="keywordtype">void</span> *value);</div>
<div class="ttc" id="a_h5_ppublic_8h_html_a2069d596a2eab8b94eaeeb2a4c60795e"><div class="ttname"><a href="_h5_ppublic_8h.html#a2069d596a2eab8b94eaeeb2a4c60795e">H5P_prp_cb1_t</a></div><div class="ttdeci">herr_t(* H5P_prp_cb1_t)(const char *name, size_t size, void *value)</div><div class="ttdoc">Callback function for H5Pregister2(),H5Pregister1(),H5Pinsert2(),H5Pinsert1()</div><div class="ttdef"><b>Definition:</b> H5Ppublic.h:196</div></div>
<div class="ttc" id="a_h5public_8h_html_a3b079ecf932a5c599499cf7e298af160"><div class="ttname"><a href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a></div><div class="ttdeci">int herr_t</div><div class="ttdef"><b>Definition:</b> H5public.h:235</div></div>
</div><!-- fragment --><p> The <a class="el" href="_h5_ppublic_8h.html#ac30e48dfeb620a9a6796a6fe2baa839f" title="Callback function for H5Pregister2(),H5Pregister1(),H5Pinsert2(),H5Pinsert1()">H5P_prp_cb2_t</a> is as follows: </p><div class="fragment"><div class="line"> </div>
<div class="line"><span class="keyword">typedef</span> <a class="code" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> (*<a class="code" href="_h5_ppublic_8h.html#ac30e48dfeb620a9a6796a6fe2baa839f">H5P_prp_cb2_t</a>)(<a class="code" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> prop_id, <span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">size_t</span> size, <span class="keywordtype">void</span> *value);</div>
<div class="ttc" id="a_h5_ipublic_8h_html_a0045db7ff9c22ad35db6ae91662e1943"><div class="ttname"><a href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a></div><div class="ttdeci">int64_t hid_t</div><div class="ttdef"><b>Definition:</b> H5Ipublic.h:60</div></div>
<div class="ttc" id="a_h5_ppublic_8h_html_ac30e48dfeb620a9a6796a6fe2baa839f"><div class="ttname"><a href="_h5_ppublic_8h.html#ac30e48dfeb620a9a6796a6fe2baa839f">H5P_prp_cb2_t</a></div><div class="ttdeci">herr_t(* H5P_prp_cb2_t)(hid_t prop_id, const char *name, size_t size, void *value)</div><div class="ttdoc">Callback function for H5Pregister2(),H5Pregister1(),H5Pinsert2(),H5Pinsert1()</div><div class="ttdef"><b>Definition:</b> H5Ppublic.h:212</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#ga930e15d5f994e223bea80621ef3065d4">◆ </a></span>H5Pinsert2()</h2>
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<td class="memname"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> H5Pinsert2 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
<td class="paramname"><em>plist_id</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>name</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>size</em>, </td>
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<td class="paramtype">void * </td>
<td class="paramname"><em>value</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a71013bd340657c834adc61579a7a13d6">H5P_prp_set_func_t</a> </td>
<td class="paramname"><em>set</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a9fb7470c8fe7cd27e59586cb59bc6dc6">H5P_prp_get_func_t</a> </td>
<td class="paramname"><em>get</em>, </td>
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<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a9400197471623296d439b208b4f91de5">H5P_prp_delete_func_t</a> </td>
<td class="paramname"><em>prp_del</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a7a6388bf6c82e985a8e03dac32874353">H5P_prp_copy_func_t</a> </td>
<td class="paramname"><em>copy</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a50c6a45d41e2b17d6d63d55d5e4bbd28">H5P_prp_compare_func_t</a> </td>
<td class="paramname"><em>compare</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a9401085aa26970aac50b0bc8b629f4b5">H5P_prp_close_func_t</a> </td>
<td class="paramname"><em>close</em> </td>
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<td>)</td>
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<p>Registers a temporary property with a property list. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">plist_id</td><td>Property list identifier </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">name</td><td>Name of property to create </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">size</td><td>Size of property in bytes </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">value</td><td>Initial value for the property </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">set</td><td>Callback routine called before a new value is copied into the property's value </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">get</td><td>Callback routine called when a property value is retrieved from the property </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">prp_del</td><td>Callback routine called when a property is deleted from a property list </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">copy</td><td>Callback routine called when a property is copied from an existing property list </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">compare</td><td>Callback routine called when a property is compared with another property list </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">close</td><td>Callback routine called when a property list is being closed and the property value will be disposed of</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Returns a non-negative value if successful; otherwise, returns a negative value.</dd></dl>
<p><a class="el" href="group___p_l_c_r_a.html#ga930e15d5f994e223bea80621ef3065d4" title="Registers a temporary property with a property list.">H5Pinsert2()</a> creates a new property in a property list. The property will exist only in this property list and copies made from it.</p>
<p>The initial property value must be provided in <code>value</code> and the property value will be set accordingly.</p>
<p>The name of the property must not already exist in this list, or this routine will fail.</p>
<p>The <code>set</code> and <code>get</code> callback routines may be set to NULL if they are not needed.</p>
<p>Zero-sized properties are allowed and do not store any data in the property list. The default value of a zero-size property may be set to NULL. They may be used to indicate the presence or absence of a particular piece of information.</p>
<p>The <code>set</code> routine is called before a new value is copied into the property. The <a class="el" href="_h5_ppublic_8h.html#a71013bd340657c834adc61579a7a13d6">H5P_prp_set_func_t</a> callback function is defined as follows: </p><div class="fragment"><div class="line"> </div>
<div class="line"><span class="keyword">typedef</span> <a class="code" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> (*<a class="code" href="_h5_ppublic_8h.html#ac30e48dfeb620a9a6796a6fe2baa839f">H5P_prp_cb2_t</a>)(<a class="code" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> prop_id, <span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">size_t</span> size, <span class="keywordtype">void</span> *value);</div>
</div><!-- fragment --><p> The parameters to the callback function are defined as follows: </p><table class="doxtable">
<tr>
<td><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> <code>prop_id</code> </td><td>IN: The identifier of the property list being modified </td></tr>
<tr>
<td><code>const char * name</code> </td><td>IN: The name of the property being modified </td></tr>
<tr>
<td><code>size_t size</code> </td><td>IN: The size of the property in bytes </td></tr>
<tr>
<td><code>void * value</code> </td><td>IN: Pointer to new value pointer for the property being modified </td></tr>
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<p>The <code>set</code> routine may modify the value pointer to be set and those changes will be used when setting the property's value. If the <code>set</code> routine returns a negative value, the new property value is not copied into the property and the <code>set</code> routine returns an error value. The <code>set</code> routine will be called for the initial value.</p>
<p><b>Note:</b> The <code>set</code> callback function may be useful to range check the value being set for the property or may perform some transformation or translation of the value set. The <code>get</code> callback would then reverse the transformation or translation. A single <code>get</code> or <code>set</code> callback could handle multiple properties by performing different actions based on the property name or other properties in the property list.</p>
<p>The <code>get</code> routine is called when a value is retrieved from a property value. The <a class="el" href="_h5_ppublic_8h.html#a9fb7470c8fe7cd27e59586cb59bc6dc6">H5P_prp_get_func_t</a> callback function is defined as follows:</p>
<div class="fragment"><div class="line"> </div>
<div class="line"><span class="keyword">typedef</span> <a class="code" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> (*<a class="code" href="_h5_ppublic_8h.html#ac30e48dfeb620a9a6796a6fe2baa839f">H5P_prp_cb2_t</a>)(<a class="code" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> prop_id, <span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">size_t</span> size, <span class="keywordtype">void</span> *value);</div>
</div><!-- fragment --><p> The parameters to the above callback function are:</p>
<table class="doxtable">
<tr>
<td><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> <code>prop_id</code> </td><td>IN: The identifier of the property list being queried </td></tr>
<tr>
<td><code>const char * name</code> </td><td>IN: The name of the property being queried </td></tr>
<tr>
<td><code>size_t size</code> </td><td>IN: The size of the property in bytes </td></tr>
<tr>
<td><code>void * value</code> </td><td>IN: The value of the property being returned </td></tr>
</table>
<p>The <code>get</code> routine may modify the value to be returned from the query and those changes will be preserved. If the <code>get</code> routine returns a negative value, the query routine returns an error value.</p>
<p>The <code>prp_del</code> routine is called when a property is being deleted from a property list. The <a class="el" href="_h5_ppublic_8h.html#a9400197471623296d439b208b4f91de5">H5P_prp_delete_func_t</a> callback function is defined as follows:</p>
<div class="fragment"><div class="line"> </div>
<div class="line"><span class="keyword">typedef</span> <a class="code" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> (*<a class="code" href="_h5_ppublic_8h.html#ac30e48dfeb620a9a6796a6fe2baa839f">H5P_prp_cb2_t</a>)(<a class="code" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> prop_id, <span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">size_t</span> size, <span class="keywordtype">void</span> *value);</div>
</div><!-- fragment --><p> The parameters to the above callback function are:</p>
<table class="doxtable">
<tr>
<td><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> <code>prop_id</code> </td><td>IN: The identifier of the property list the property is being deleted from </td></tr>
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<td><code>const char * name</code> </td><td>IN: The name of the property in the list </td></tr>
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<td><code>size_t size</code> </td><td>IN: The size of the property in bytes </td></tr>
<tr>
<td><code>void * value</code> </td><td>IN: The value for the property being deleted </td></tr>
</table>
<p>The <code>prp_del</code> routine may modify the value passed in, but the value is not used by the library when the <code>prp_del</code> routine returns. If the <code>prp_del</code> routine returns a negative value, the property list <code>prp_del</code> routine returns an error value but the property is still deleted.</p>
<p>The <code>copy</code> routine is called when a new property list with this property is being created through a <code>copy</code> operation.</p>
<p>The <a class="el" href="_h5_ppublic_8h.html#a7a6388bf6c82e985a8e03dac32874353">H5P_prp_copy_func_t</a> callback function is defined as follows:</p>
<div class="fragment"><div class="line"> </div>
<div class="line"><span class="keyword">typedef</span> <a class="code" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> (*<a class="code" href="_h5_ppublic_8h.html#a2069d596a2eab8b94eaeeb2a4c60795e">H5P_prp_cb1_t</a>)(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">size_t</span> size, <span class="keywordtype">void</span> *value);</div>
</div><!-- fragment --><p> The parameters to the above callback function are: </p><table class="doxtable">
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<td><code>const char * name</code> </td><td>IN: The name of the property being copied </td></tr>
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<td><code>size_t size</code> </td><td>IN: The size of the property in bytes </td></tr>
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<td><code>void * value</code> </td><td>IN/OUT: The value for the property being copied </td></tr>
</table>
<p>The <code>copy</code> routine may modify the value to be set and those changes will be stored as the new value of the property. If the <code>copy</code> routine returns a negative value, the new property value is not copied into the property and the copy routine returns an error value.</p>
<p>The <code>compare</code> routine is called when a property list with this property is compared to another property list with the same property.</p>
<p>The <a class="el" href="_h5_ppublic_8h.html#a50c6a45d41e2b17d6d63d55d5e4bbd28" title="Callback function for comparing property values.">H5P_prp_compare_func_t</a> callback function is defined as follows:</p>
<div class="fragment"><div class="line"> </div>
<div class="line"><span class="keyword">typedef</span> int (*<a class="code" href="_h5_ppublic_8h.html#a50c6a45d41e2b17d6d63d55d5e4bbd28">H5P_prp_compare_func_t</a>)(<span class="keyword">const</span> <span class="keywordtype">void</span> *value1, <span class="keyword">const</span> <span class="keywordtype">void</span> *value2, <span class="keywordtype">size_t</span> size);</div>
<div class="ttc" id="a_h5_ppublic_8h_html_a50c6a45d41e2b17d6d63d55d5e4bbd28"><div class="ttname"><a href="_h5_ppublic_8h.html#a50c6a45d41e2b17d6d63d55d5e4bbd28">H5P_prp_compare_func_t</a></div><div class="ttdeci">int(* H5P_prp_compare_func_t)(const void *value1, const void *value2, size_t size)</div><div class="ttdoc">Callback function for comparing property values.</div><div class="ttdef"><b>Definition:</b> H5Ppublic.h:261</div></div>
</div><!-- fragment --><p> The parameters to the callback function are defined as follows:</p>
<table class="doxtable">
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<td><code>const void * value1</code> </td><td>IN: The value of the first property to compare </td></tr>
<tr>
<td><code>const void * value2</code> </td><td>IN: The value of the second property to compare </td></tr>
<tr>
<td><code>size_t size</code> </td><td>IN: The size of the property in bytes </td></tr>
</table>
<p>The <code>compare</code> routine may not modify the values. The <code>compare</code> routine should return a positive value if <code>value1</code> is greater than <code>value2</code>, a negative value if <code>value2</code> is greater than <code>value1</code> and zero if <code>value1</code> and <code>value2</code> are equal.</p>
<p>The <code>close</code> routine is called when a property list with this property is being closed.</p>
<p>The <a class="el" href="_h5_ppublic_8h.html#a9401085aa26970aac50b0bc8b629f4b5">H5P_prp_close_func_t</a> callback function is defined as follows: </p><div class="fragment"><div class="line"> </div>
<div class="line"><span class="keyword">typedef</span> <a class="code" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> (*<a class="code" href="_h5_ppublic_8h.html#a2069d596a2eab8b94eaeeb2a4c60795e">H5P_prp_cb1_t</a>)(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">size_t</span> size, <span class="keywordtype">void</span> *value);</div>
</div><!-- fragment --><p> The parameters to the callback function are defined as follows:</p>
<table class="doxtable">
<tr>
<td><code>const char * name</code> </td><td>IN: The name of the property in the list </td></tr>
<tr>
<td><code>size_t size</code> </td><td>IN: The size of the property in bytes </td></tr>
<tr>
<td><code>void * value</code> </td><td>IN: The value for the property being closed </td></tr>
</table>
<p>The <code>close</code> routine may modify the value passed in, the value is not used by the library when the close routine returns. If the <code>close</code> routine returns a negative value, the property list <code>close</code> routine returns an error value but the property list is still closed.</p>
<p><b>Note:</b> There is no <code>create</code> callback routine for temporary property list objects; the initial value is assumed to have any necessary setup already performed on it.</p>
<dl class="section since"><dt>Since</dt><dd>1.8.0 </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ga68bc660e09b46dcb5ea3f25b245aff60">◆ </a></span>H5Pisa_class()</h2>
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<td class="memname"><a class="el" href="_h5public_8h.html#aa8f6c28736dbd0f18388c67911d38aca">htri_t</a> H5Pisa_class </td>
<td>(</td>
<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
<td class="paramname"><em>plist_id</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
<td class="paramname"><em>pclass_id</em> </td>
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<p>Determines whether a property list is a member of a class. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">plist_id</td><td>Property list identifier </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pclass_id</td><td>Property list class identifier</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Returns zero (false), a positive (true) or a negative (failure) value.</dd></dl>
<p><a class="el" href="group___p_l_c_r_a.html#ga68bc660e09b46dcb5ea3f25b245aff60" title="Determines whether a property list is a member of a class.">H5Pisa_class()</a> checks to determine whether the property list <code>plist_id</code> is a member of the property list class <code>pclass_id</code>.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group___p_l_c_r.html#gaf1b11da01d4d45d788c45f8bc5f0cbfa" title="Creates a new property list as an instance of a property list class.">H5Pcreate()</a></dd></dl>
<dl class="section since"><dt>Since</dt><dd>1.6.0 </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ga1c52aa0f6d1839798982973d7db9569e">◆ </a></span>H5Piterate()</h2>
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<td class="memname">int H5Piterate </td>
<td>(</td>
<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
<td class="paramname"><em>id</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"><em>idx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a9d7a5c4938ce5732e469f1db706949fe">H5P_iterate_t</a> </td>
<td class="paramname"><em>iter_func</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">void * </td>
<td class="paramname"><em>iter_data</em> </td>
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<p>Iterates over properties in a property class or list. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">id</td><td>Identifier of property object to iterate over </td></tr>
<tr><td class="paramdir">[in,out]</td><td class="paramname">idx</td><td>Index of the property to begin with </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">iter_func</td><td>Function pointer to function to be called with each property iterated over </td></tr>
<tr><td class="paramdir">[in,out]</td><td class="paramname">iter_data</td><td>Pointer to iteration data from user</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>On success: the return value of the last call to <code>iter_func</code> if it was non-zero; zero if all properties have been processed. On Failure, a negative value</dd></dl>
<p><a class="el" href="group___p_l_c_r_a.html#ga1c52aa0f6d1839798982973d7db9569e" title="Iterates over properties in a property class or list.">H5Piterate()</a> iterates over the properties in the property object specified in <code>id</code>, which may be either a property list or a property class, performing a specified operation on each property in turn.</p>
<p>For each property in the object, <code>iter_func</code> and the additional information specified below are passed to the <a class="el" href="_h5_ppublic_8h.html#a9d7a5c4938ce5732e469f1db706949fe" title="Callback function for H5Piterate()">H5P_iterate_t</a> operator function.</p>
<p>The iteration begins with the <code>idx-th</code> property in the object; the next element to be processed by the operator is returned in <code>idx</code>. If <code>idx</code> is NULL, the iterator starts at the first property; since no stopping point is returned in this case, the iterator cannot be restarted if one of the calls to its operator returns non-zero.</p>
<p>The operation <code>iter_func</code> receives the property list or class identifier for the object being iterated over, <code>id</code>, the name of the current property within the object, <code>name</code>, and the pointer to the operator data passed in to <a class="el" href="group___p_l_c_r_a.html#ga1c52aa0f6d1839798982973d7db9569e" title="Iterates over properties in a property class or list.">H5Piterate()</a>, <code>iter_data</code>.</p>
<dl class="section warning"><dt>Warning</dt><dd><a class="el" href="group___p_l_c_r_a.html#ga1c52aa0f6d1839798982973d7db9569e" title="Iterates over properties in a property class or list.">H5Piterate()</a> assumes that the properties in the object identified by <code>id</code> remain unchanged through the iteration. If the membership changes during the iteration, the function's behavior is undefined.</dd></dl>
<dl class="section since"><dt>Since</dt><dd>1.4.0 </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ga91799f6cda78911e9ecc2cfaaea3a3b5">◆ </a></span>H5Pregister1()</h2>
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<td class="memname"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> H5Pregister1 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
<td class="paramname"><em>cls_id</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>name</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>size</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">void * </td>
<td class="paramname"><em>def_value</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a874ff6838c44e13eb75a80086ea18bd4">H5P_prp_create_func_t</a> </td>
<td class="paramname"><em>prp_create</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a71013bd340657c834adc61579a7a13d6">H5P_prp_set_func_t</a> </td>
<td class="paramname"><em>prp_set</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a9fb7470c8fe7cd27e59586cb59bc6dc6">H5P_prp_get_func_t</a> </td>
<td class="paramname"><em>prp_get</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a9400197471623296d439b208b4f91de5">H5P_prp_delete_func_t</a> </td>
<td class="paramname"><em>prp_del</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a7a6388bf6c82e985a8e03dac32874353">H5P_prp_copy_func_t</a> </td>
<td class="paramname"><em>prp_copy</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a9401085aa26970aac50b0bc8b629f4b5">H5P_prp_close_func_t</a> </td>
<td class="paramname"><em>prp_close</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Registers a permanent property with a property list class. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">cls_id</td><td>Property list class identifier </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">name</td><td>Name of property to register </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">size</td><td>Size of property in bytes </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">def_value</td><td>Default value for property in newly created property lists </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">prp_create</td><td>Callback routine called when a property list is being created and the property value will be initialized </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">prp_set</td><td>Callback routine called before a new value is copied into the property's value </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">prp_get</td><td>Callback routine called when a property value is retrieved from the property </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">prp_del</td><td>Callback routine called when a property is deleted from a property list </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">prp_copy</td><td>Callback routine called when a property is copied from a property list </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">prp_close</td><td>Callback routine called when a property list is being closed and the property value will be disposed of</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Returns a non-negative value if successful; otherwise, returns a negative value.</dd></dl>
<dl class="deprecated"><dt><b><a class="el" href="deprecated.html#_deprecated000070">Deprecated:</a></b></dt><dd>As of HDF5-1.8 this function was deprecated in favor of <a class="el" href="group___p_l_c_r_a.html#gaac3f957a5d3cbb4adc8b7ba2aa5f1719" title="Registers a permanent property with a property list class.">H5Pregister2()</a> or the macro <a class="el" href="_h5version_8h.html#a334ff323dfa6653ce21d0988ae7c73ba">H5Pregister()</a>.</dd></dl>
<p><a class="el" href="group___p_l_c_r_a.html#ga91799f6cda78911e9ecc2cfaaea3a3b5" title="Registers a permanent property with a property list class.">H5Pregister1()</a> registers a new property with a property list class. The property will exist in all property list objects of that class after this routine is finished. The name of the property must not already exist. The default property value must be provided and all new property lists created with this property will have the property value set to the default provided. Any of the callback routines may be set to NULL if they are not needed.</p>
<p>Zero-sized properties are allowed and do not store any data in the property list. These may be used as flags to indicate the presence or absence of a particular piece of information. The default pointer for a zero-sized property may be set to NULL. The property <code>prp_create</code> and <code>prp_close</code> callbacks are called for zero-sized properties, but the <code>prp_set</code> and <code>prp_get</code> callbacks are never called.</p>
<p>The <code>prp_create</code> routine is called when a new property list with this property is being created. The <a class="el" href="_h5_ppublic_8h.html#a874ff6838c44e13eb75a80086ea18bd4">H5P_prp_create_func_t</a> callback function is defined as <a class="el" href="_h5_ppublic_8h.html#a2069d596a2eab8b94eaeeb2a4c60795e" title="Callback function for H5Pregister2(),H5Pregister1(),H5Pinsert2(),H5Pinsert1()">H5P_prp_cb1_t</a>.</p>
<p>The <code>prp_create</code> routine may modify the value to be set and those changes will be stored as the initial value of the property. If the <code>prp_create</code> routine returns a negative value, the new property value is not copied into the property and the <code>prp_create</code> routine returns an error value.</p>
<p>The <code>prp_set</code> routine is called before a new value is copied into the property. The <a class="el" href="_h5_ppublic_8h.html#a71013bd340657c834adc61579a7a13d6">H5P_prp_set_func_t</a> callback function is defined as <a class="el" href="_h5_ppublic_8h.html#ac30e48dfeb620a9a6796a6fe2baa839f" title="Callback function for H5Pregister2(),H5Pregister1(),H5Pinsert2(),H5Pinsert1()">H5P_prp_cb2_t</a>.</p>
<p>The <code>prp_set</code> routine may modify the value pointer to be set and those changes will be used when setting the property's value. If the <code>prp_set</code> routine returns a negative value, the new property value is not copied into the property and the <code>prp_set</code> routine returns an error value. The <code>prp_set</code> routine will not be called for the initial value; only the <code>prp_create</code> routine will be called.</p>
<p><b>Note:</b> The <code>prp_set</code> callback function may be useful to range check the value being set for the property or may perform some transformation or translation of the value set. The <code>prp_get</code> callback would then reverse the transformation or translation. A single <code>prp_get</code> or <code>prp_set</code> callback could handle multiple properties by performing different actions based on the property name or other properties in the property list.</p>
<p>The <code>prp_get</code> routine is called when a value is retrieved from a property value. The <a class="el" href="_h5_ppublic_8h.html#a9fb7470c8fe7cd27e59586cb59bc6dc6">H5P_prp_get_func_t</a> callback function is defined as <a class="el" href="_h5_ppublic_8h.html#ac30e48dfeb620a9a6796a6fe2baa839f" title="Callback function for H5Pregister2(),H5Pregister1(),H5Pinsert2(),H5Pinsert1()">H5P_prp_cb2_t</a>.</p>
<p>The <code>prp_get</code> routine may modify the value to be returned from the query and those changes will be returned to the calling routine. If the <code>prp_set</code> routine returns a negative value, the query routine returns an error value.</p>
<p>The <code>prp_del</code> routine is called when a property is being deleted from a property list. The <a class="el" href="_h5_ppublic_8h.html#a9400197471623296d439b208b4f91de5">H5P_prp_delete_func_t</a> callback function is defined as <a class="el" href="_h5_ppublic_8h.html#ac30e48dfeb620a9a6796a6fe2baa839f" title="Callback function for H5Pregister2(),H5Pregister1(),H5Pinsert2(),H5Pinsert1()">H5P_prp_cb2_t</a>.</p>
<p>The <code>prp_del</code> routine may modify the value passed in, but the value is not used by the library when the <code>prp_del</code> routine returns. If the <code>prp_del</code> routine returns a negative value, the property list deletion routine returns an error value but the property is still deleted.</p>
<p>The <code>prp_copy</code> routine is called when a new property list with this property is being created through a <code>prp_copy</code> operation. The <a class="el" href="_h5_ppublic_8h.html#a7a6388bf6c82e985a8e03dac32874353">H5P_prp_copy_func_t</a> callback function is defined as <a class="el" href="_h5_ppublic_8h.html#a2069d596a2eab8b94eaeeb2a4c60795e" title="Callback function for H5Pregister2(),H5Pregister1(),H5Pinsert2(),H5Pinsert1()">H5P_prp_cb1_t</a>.</p>
<p>The <code>prp_copy</code> routine may modify the value to be set and those changes will be stored as the new value of the property. If the <code>prp_copy</code> routine returns a negative value, the new property value is not copied into the property and the <code>prp_copy</code> routine returns an error value.</p>
<p>The <code>prp_close</code> routine is called when a property list with this property is being closed. The <a class="el" href="_h5_ppublic_8h.html#a9401085aa26970aac50b0bc8b629f4b5">H5P_prp_close_func_t</a> callback function is defined as <a class="el" href="_h5_ppublic_8h.html#a2069d596a2eab8b94eaeeb2a4c60795e" title="Callback function for H5Pregister2(),H5Pregister1(),H5Pinsert2(),H5Pinsert1()">H5P_prp_cb1_t</a>.</p>
<p>The <code>prp_close</code> routine may modify the value passed in, but the value is not used by the library when the <code>prp_close</code> routine returns. If the <code>prp_close</code> routine returns a negative value, the property list close routine returns an error value but the property list is still closed.</p>
<p>The <a class="el" href="_h5_ppublic_8h.html#a2069d596a2eab8b94eaeeb2a4c60795e" title="Callback function for H5Pregister2(),H5Pregister1(),H5Pinsert2(),H5Pinsert1()">H5P_prp_cb1_t</a> is as follows: </p><div class="fragment"><div class="line"> </div>
<div class="line"><span class="keyword">typedef</span> <a class="code" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> (*<a class="code" href="_h5_ppublic_8h.html#a2069d596a2eab8b94eaeeb2a4c60795e">H5P_prp_cb1_t</a>)(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">size_t</span> size, <span class="keywordtype">void</span> *value);</div>
</div><!-- fragment --><p> The <a class="el" href="_h5_ppublic_8h.html#ac30e48dfeb620a9a6796a6fe2baa839f" title="Callback function for H5Pregister2(),H5Pregister1(),H5Pinsert2(),H5Pinsert1()">H5P_prp_cb2_t</a> is as follows: </p><div class="fragment"><div class="line"> </div>
<div class="line"><span class="keyword">typedef</span> <a class="code" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> (*<a class="code" href="_h5_ppublic_8h.html#ac30e48dfeb620a9a6796a6fe2baa839f">H5P_prp_cb2_t</a>)(<a class="code" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> prop_id, <span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">size_t</span> size, <span class="keywordtype">void</span> *value);</div>
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<h2 class="memtitle"><span class="permalink"><a href="#gaac3f957a5d3cbb4adc8b7ba2aa5f1719">◆ </a></span>H5Pregister2()</h2>
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<td class="memname"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> H5Pregister2 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
<td class="paramname"><em>cls_id</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>name</em>, </td>
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<td class="paramtype">size_t </td>
<td class="paramname"><em>size</em>, </td>
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<td></td>
<td class="paramtype">void * </td>
<td class="paramname"><em>def_value</em>, </td>
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<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a874ff6838c44e13eb75a80086ea18bd4">H5P_prp_create_func_t</a> </td>
<td class="paramname"><em>create</em>, </td>
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<td></td>
<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a71013bd340657c834adc61579a7a13d6">H5P_prp_set_func_t</a> </td>
<td class="paramname"><em>set</em>, </td>
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<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a9fb7470c8fe7cd27e59586cb59bc6dc6">H5P_prp_get_func_t</a> </td>
<td class="paramname"><em>get</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a9400197471623296d439b208b4f91de5">H5P_prp_delete_func_t</a> </td>
<td class="paramname"><em>prp_del</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a7a6388bf6c82e985a8e03dac32874353">H5P_prp_copy_func_t</a> </td>
<td class="paramname"><em>copy</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a50c6a45d41e2b17d6d63d55d5e4bbd28">H5P_prp_compare_func_t</a> </td>
<td class="paramname"><em>compare</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="_h5_ppublic_8h.html#a9401085aa26970aac50b0bc8b629f4b5">H5P_prp_close_func_t</a> </td>
<td class="paramname"><em>close</em> </td>
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<p>Registers a permanent property with a property list class. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">cls_id</td><td>Property list class identifier </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">name</td><td>Name of property to register </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">size</td><td>Size of property in bytes </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">def_value</td><td>Default value for property in newly created property lists </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">create</td><td>Callback routine called when a property list is being created and the property value will be initialized </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">set</td><td>Callback routine called before a new value is copied into the property's value </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">get</td><td>Callback routine called when a property value is retrieved from the property </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">prp_del</td><td>Callback routine called when a property is deleted from a property list </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">copy</td><td>Callback routine called when a property is copied from a property list </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">compare</td><td>Callback routine called when a property is compared with another property list </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">close</td><td>Callback routine called when a property list is being closed and the property value will be disposed of</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Returns a non-negative value if successful; otherwise, returns a negative value.</dd></dl>
<p><a class="el" href="group___p_l_c_r_a.html#gaac3f957a5d3cbb4adc8b7ba2aa5f1719" title="Registers a permanent property with a property list class.">H5Pregister2()</a> registers a new property with a property list class. The <code>cls_id</code> identifier can be obtained by calling <a class="el" href="group___p_l_c_r_a.html#ga62a1119b6ad2c33bcc9149df5e24ae12" title="Creates a new property list class.">H5Pcreate_class()</a>. The property will exist in all property list objects of <code>cl_id</code> created after this routine finishes. The name of the property must not already exist, or this routine will fail. The default property value must be provided and all new property lists created with this property will have the property value set to the default value. Any of the callback routines may be set to NULL if they are not needed.</p>
<p>Zero-sized properties are allowed and do not store any data in the property list. These may be used as flags to indicate the presence or absence of a particular piece of information. The default pointer for a zero-sized property may be set to NULL. The property <code>create</code> and <code>close</code> callbacks are called for zero-sized properties, but the <code>set</code> and <code>get</code> callbacks are never called.</p>
<p>The <code>create</code> routine is called when a new property list with this property is being created. The <a class="el" href="_h5_ppublic_8h.html#a874ff6838c44e13eb75a80086ea18bd4">H5P_prp_create_func_t</a> callback function is defined as follows:</p>
<div class="fragment"><div class="line"> </div>
<div class="line"><span class="keyword">typedef</span> <a class="code" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> (*<a class="code" href="_h5_ppublic_8h.html#a2069d596a2eab8b94eaeeb2a4c60795e">H5P_prp_cb1_t</a>)(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">size_t</span> size, <span class="keywordtype">void</span> *value);</div>
</div><!-- fragment --><p> The parameters to this callback function are defined as follows:</p>
<table class="doxtable">
<tr>
<td><code>const char * name</code> </td><td>IN: The name of the property being modified </td></tr>
<tr>
<td><code>size_t size</code> </td><td>IN: The size of the property in bytes </td></tr>
<tr>
<td><code>void * value</code> </td><td>IN/OUT: The default value for the property being created, which will be passed to <a class="el" href="group___p_l_c_r_a.html#gaac3f957a5d3cbb4adc8b7ba2aa5f1719" title="Registers a permanent property with a property list class.">H5Pregister2()</a> </td></tr>
</table>
<p>The <code>create</code> routine may modify the value to be set and those changes will be stored as the initial value of the property. If the <code>create</code> routine returns a negative value, the new property value is not copied into the property and the <code>create</code> routine returns an error value.</p>
<p>The <code>set</code> routine is called before a new value is copied into the property. The <a class="el" href="_h5_ppublic_8h.html#a71013bd340657c834adc61579a7a13d6">H5P_prp_set_func_t</a> callback function is defined as follows:</p>
<div class="fragment"><div class="line"> </div>
<div class="line"><span class="keyword">typedef</span> <a class="code" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> (*<a class="code" href="_h5_ppublic_8h.html#ac30e48dfeb620a9a6796a6fe2baa839f">H5P_prp_cb2_t</a>)(<a class="code" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> prop_id, <span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">size_t</span> size, <span class="keywordtype">void</span> *value);</div>
</div><!-- fragment --><p> The parameters to this callback function are defined as follows:</p>
<table class="doxtable">
<tr>
<td><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> <code>prop_id</code> </td><td>IN: The identifier of the property list being modified </td></tr>
<tr>
<td><code>const char * name</code> </td><td>IN: The name of the property being modified </td></tr>
<tr>
<td><code>size_t size</code> </td><td>IN: The size of the property in bytes </td></tr>
<tr>
<td><code>void *value</code> </td><td>IN/OUT: Pointer to new value pointer for the property being modified </td></tr>
</table>
<p>The <code>set</code> routine may modify the value pointer to be set and those changes will be used when setting the property's value. If the <code>set</code> routine returns a negative value, the new property value is not copied into the property and the <code>set</code> routine returns an error value. The <code>set</code> routine will not be called for the initial value; only the <code>create</code> routine will be called.</p>
<p><b>Note:</b> The <code>set</code> callback function may be useful to range check the value being set for the property or may perform some transformation or translation of the value set. The <code>get</code> callback would then reverse the transformation or translation. A single <code>get</code> or <code>set</code> callback could handle multiple properties by performing different actions based on the property name or other properties in the property list.</p>
<p>The <code>get</code> routine is called when a value is retrieved from a property value. The <a class="el" href="_h5_ppublic_8h.html#a9fb7470c8fe7cd27e59586cb59bc6dc6">H5P_prp_get_func_t</a> callback function is defined as follows:</p>
<div class="fragment"><div class="line"> </div>
<div class="line"><span class="keyword">typedef</span> <a class="code" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> (*<a class="code" href="_h5_ppublic_8h.html#ac30e48dfeb620a9a6796a6fe2baa839f">H5P_prp_cb2_t</a>)(<a class="code" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> prop_id, <span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">size_t</span> size, <span class="keywordtype">void</span> *value);</div>
</div><!-- fragment --><p> The parameters to the callback function are defined as follows:</p>
<table class="doxtable">
<tr>
<td><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> <code>prop_id</code> </td><td>IN: The identifier of the property list being queried </td></tr>
<tr>
<td><code>const char * name</code> </td><td>IN: The name of the property being queried </td></tr>
<tr>
<td><code>size_t size</code> </td><td>IN: The size of the property in bytes </td></tr>
<tr>
<td><code>void * value</code> </td><td>IN/OUT: The value of the property being returned </td></tr>
</table>
<p>The <code>get</code> routine may modify the value to be returned from the query and those changes will be returned to the calling routine. If the <code>set</code> routine returns a negative value, the query routine returns an error value.</p>
<p>The <code>prp_del</code> routine is called when a property is being deleted from a property list. The <a class="el" href="_h5_ppublic_8h.html#a9400197471623296d439b208b4f91de5">H5P_prp_delete_func_t</a> callback function is defined as follows:</p>
<div class="fragment"><div class="line"> </div>
<div class="line"><span class="keyword">typedef</span> <a class="code" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> (*<a class="code" href="_h5_ppublic_8h.html#ac30e48dfeb620a9a6796a6fe2baa839f">H5P_prp_cb2_t</a>)(<a class="code" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> prop_id, <span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">size_t</span> size, <span class="keywordtype">void</span> *value);</div>
</div><!-- fragment --><p> The parameters to the callback function are defined as follows:</p>
<table class="doxtable">
<tr>
<td><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> <code>prop_id</code> </td><td>IN: The identifier of the property list the property is being deleted from </td></tr>
<tr>
<td><code>const char * name</code> </td><td>IN: The name of the property in the list </td></tr>
<tr>
<td><code>size_t size</code> </td><td>IN: The size of the property in bytes </td></tr>
<tr>
<td><code>void * value</code> </td><td>IN: The value for the property being deleted </td></tr>
</table>
<p>The <code>prp_del</code> routine may modify the value passed in, but the value is not used by the library when the <code>prp_del</code> routine returns. If the <code>prp_del</code> routine returns a negative value, the property list delete routine returns an error value but the property is still deleted.</p>
<p>The <code>copy</code> routine is called when a new property list with this property is being created through a <code>copy</code> operation. The <a class="el" href="_h5_ppublic_8h.html#a7a6388bf6c82e985a8e03dac32874353">H5P_prp_copy_func_t</a> callback function is defined as follows:</p>
<div class="fragment"><div class="line"> </div>
<div class="line"><span class="keyword">typedef</span> <a class="code" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> (*<a class="code" href="_h5_ppublic_8h.html#a2069d596a2eab8b94eaeeb2a4c60795e">H5P_prp_cb1_t</a>)(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">size_t</span> size, <span class="keywordtype">void</span> *value);</div>
</div><!-- fragment --><p> The parameters to the callback function are defined as follows:</p>
<table class="doxtable">
<tr>
<td><code>const char * name</code> </td><td>IN: The name of the property being copied </td></tr>
<tr>
<td><code>size_t size</code> </td><td>IN: The size of the property in bytes </td></tr>
<tr>
<td><code>void * value</code> </td><td>IN/OUT: The value for the property being copied </td></tr>
</table>
<p>The <code>copy</code> routine may modify the value to be set and those changes will be stored as the new value of the property. If the <code>copy</code> routine returns a negative value, the new property value is not copied into the property and the <code>copy</code> routine returns an error value.</p>
<p>The <code>compare</code> routine is called when a property list with this property is compared to another property list with the same property. The <a class="el" href="_h5_ppublic_8h.html#a50c6a45d41e2b17d6d63d55d5e4bbd28" title="Callback function for comparing property values.">H5P_prp_compare_func_t</a> callback function is defined as follows:</p>
<div class="fragment"><div class="line"> </div>
<div class="line"><span class="keyword">typedef</span> int (*<a class="code" href="_h5_ppublic_8h.html#a50c6a45d41e2b17d6d63d55d5e4bbd28">H5P_prp_compare_func_t</a>)(<span class="keyword">const</span> <span class="keywordtype">void</span> *value1, <span class="keyword">const</span> <span class="keywordtype">void</span> *value2, <span class="keywordtype">size_t</span> size);</div>
</div><!-- fragment --><p> The parameters to the callback function are defined as follows:</p>
<table class="doxtable">
<tr>
<td><code>const void * value1</code> </td><td>IN: The value of the first property to compare </td></tr>
<tr>
<td><code>const void * value2</code> </td><td>IN: The value of the second property to compare </td></tr>
<tr>
<td><code>size_t size</code> </td><td>IN: The size of the property in bytes </td></tr>
</table>
<p>The <code>compare</code> routine may not modify the values. The <code>compare</code> routine should return a positive value if <code>value1</code> is greater than <code>value2</code>, a negative value if <code>value2</code> is greater than <code>value1</code> and zero if <code>value1</code> and <code>value2</code> are equal.</p>
<p>The <code>close</code> routine is called when a property list with this property is being closed. The <a class="el" href="_h5_ppublic_8h.html#a9401085aa26970aac50b0bc8b629f4b5">H5P_prp_close_func_t</a> callback function is defined as follows:</p>
<div class="fragment"><div class="line"> </div>
<div class="line"><span class="keyword">typedef</span> <a class="code" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> (*<a class="code" href="_h5_ppublic_8h.html#a2069d596a2eab8b94eaeeb2a4c60795e">H5P_prp_cb1_t</a>)(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">size_t</span> size, <span class="keywordtype">void</span> *value);</div>
</div><!-- fragment --><p> The parameters to the callback function are defined as follows:</p>
<table class="doxtable">
<tr>
<td><code>const char * name</code> </td><td>IN: The name of the property in the list </td></tr>
<tr>
<td><code>size_t size</code> </td><td>IN: The size of the property in bytes </td></tr>
<tr>
<td><code>void * value</code> </td><td>IN: The value for the property being closed </td></tr>
</table>
<p>The <code>close</code> routine may modify the value passed in, but the value is not used by the library when the <code>close</code> routine returns. If the <code>close</code> routine returns a negative value, the property list close routine returns an error value but the property list is still closed.</p>
<dl class="section since"><dt>Since</dt><dd>1.8.0 </dd></dl>
</div>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ga2bf026d42a7823e89b6070a4cafc284b">◆ </a></span>H5Premove()</h2>
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<td class="memname"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> H5Premove </td>
<td>(</td>
<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
<td class="paramname"><em>plist_id</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>name</em> </td>
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<p>Removes a property from a property list. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">plist_id</td><td>Property list identifier </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">name</td><td>Name of property to remove</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Returns a non-negative value if successful; otherwise, returns a negative value.</dd></dl>
<p><a class="el" href="group___p_l_c_r_a.html#ga2bf026d42a7823e89b6070a4cafc284b" title="Removes a property from a property list.">H5Premove()</a> removes a property from a property list. Both properties which were in existence when the property list was created (i.e. properties registered with <a class="el" href="_h5version_8h.html#a334ff323dfa6653ce21d0988ae7c73ba">H5Pregister()</a>) and properties added to the list after it was created (i.e. added with <a class="el" href="group___p_l_c_r_a.html#ga6ba9694c03ae97c9f514470366a909f9" title="Registers a temporary property with a property list.">H5Pinsert1()</a> may be removed from a property list. Properties do not need to be removed from a property list before the list itself is closed; they will be released automatically when <a class="el" href="group___p_l_c_r.html#ga5dce61149211d3ef319452aa598887fb" title="Terminates access to a property list.">H5Pclose()</a> is called.</p>
<p>If a <code>close</code> callback exists for the removed property, it will be called before the property is released.</p>
<dl class="section since"><dt>Since</dt><dd>1.4.0 </dd></dl>
</div>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ga971d2f700cb98ccdfcdf93a39118983b">◆ </a></span>H5Pset()</h2>
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<td class="memname"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> H5Pset </td>
<td>(</td>
<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
<td class="paramname"><em>plist_id</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>name</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const void * </td>
<td class="paramname"><em>value</em> </td>
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<p>Sets a property list value. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">plist_id</td><td>Property list identifier </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">name</td><td>Name of property to modify </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">value</td><td>Pointer to value to set the property to</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Returns a non-negative value if successful; otherwise, returns a negative value.</dd></dl>
<p><a class="el" href="group___p_l_c_r_a.html#ga971d2f700cb98ccdfcdf93a39118983b" title="Sets a property list value.">H5Pset()</a> sets a new value for a property in a property list. If there is a <code>set</code> callback routine registered for this property, the <code>value</code> will be passed to that routine and any changes to the <code>value</code> will be used when setting the property value. The information pointed to by the <code>value</code> pointer (possibly modified by the <code>set</code> callback) is copied into the property list value and may be changed by the application making the <a class="el" href="group___p_l_c_r_a.html#ga971d2f700cb98ccdfcdf93a39118983b" title="Sets a property list value.">H5Pset()</a> call without affecting the property value.</p>
<p>The property name must exist or this routine will fail.</p>
<p>If the <code>set</code> callback routine returns an error, the property value will not be modified.</p>
<p>This routine may not be called for zero-sized properties and will return an error in that case.</p>
<dl class="section since"><dt>Since</dt><dd>1.4.0 </dd></dl>
</div>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#gaefb44d3535e309ba4041e420f3712aea">◆ </a></span>H5Punregister()</h2>
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<td class="memname"><a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> H5Punregister </td>
<td>(</td>
<td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> </td>
<td class="paramname"><em>pclass_id</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>name</em> </td>
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<td></td>
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<p>Removes a property from a property list class. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pclass_id</td><td>Property list class identifier </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">name</td><td>Name of property to remove</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Returns a non-negative value if successful; otherwise, returns a negative value.</dd></dl>
<p><a class="el" href="group___p_l_c_r_a.html#gaefb44d3535e309ba4041e420f3712aea" title="Removes a property from a property list class.">H5Punregister()</a> removes a property from a property list class. Future property lists created of that class will not contain this property; existing property lists containing this property are not affected.</p>
<dl class="section since"><dt>Since</dt><dd>1.4.0 </dd></dl>
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