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authorjk7744.park <jk7744.park@samsung.com>2015-01-31 16:15:26 +0900
committerjk7744.park <jk7744.park@samsung.com>2015-01-31 16:15:26 +0900
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+<h2><span class="refentrytitle">Changes from 2.2 to 2.4</span></h2>
+<p>Changes from 2.2 to 2.4 — Changes made between version 2.2 and version 2.4</p>
+</td>
+<td valign="top" align="right"></td>
+</tr></table></div>
+<div class="refsect1">
+<a name="idp5083696"></a><h2>Changes from 2.2 to 2.4</h2>
+<p>GMime 2.4 has had a number of API changes since GMime
+2.2. To start, ALL public APIs that used to use off_t in GMime 2.2 now
+use gint64 so that the API and ABI do not change based on whether or
+not large file support is enabled.</p>
+<p>In addition, all of the functions marked as deprecated in
+2.0 and 2.2 were removed (usually they had equivalent functionality in
+a parent class).</p>
+<p>Many functions have also been renamed for better clarity
+and/or consistency. For convenience, GMime 2.4 source packages include
+a shell-script to aid in porting applications using GMime 2.2 (should
+work for most GMime 2.0 applications as well) to the 2.4 API. You can
+find this script under the tools/ directory, named
+`gmime-port-2-2-to-2-4.sh'.</p>
+<p>This script won't fix everything, but it should help quite a
+bit.</p>
+<p>Beyond that, a few methods have changed in other ways:</p>
+<div class="itemizedlist"><ul class="itemizedlist" type="disc">
+<li class="listitem"><p><code class="function">g_mime_cipher_context_sign()</code>
+ still returns int, but if the value isn't -1 (failure), then it will
+ represent a GMimeCipherHash that it used for signing. This is
+ useful, for example, when the requested hash was
+ GMIME_CIPHER_HASH_DEFAULT.</p></li>
+<li class="listitem"><p><code class="function">g_mime_cipher_context_decrypt()</code>
+ now returns a GMimeSignatureValidty on success and NULL on
+ failure. This is needed in case the encrypted stream was also
+ signed.</p></li>
+<li class="listitem"><p><code class="function">g_mime_multipart_encrypted_encrypt()</code>
+ now takes a boolean 'sign' argument to allow the caller to request
+ encrypting and signing in a single pass.</p></li>
+</ul></div>
+<p>Several structs have also been rewritten to subclass GObject like
+GMimeContentType and GMimeContentDisposition as well as
+InternetAddress and InternetAddressList.</p>
+<p>Not only have InternetAddress and InternetAddressList been ported to
+GObject, but they have also undergone other design
+changes. InternetAddress is now a base class for
+InternetAddressMailbox and InternetAddressGroup, meaning that
+InternetAddress no longer contains a union for group/addr fields.</p>
+<p>All functions that return a GObject have been changed to not add a ref
+to the object returned, meaning that it is no longer necessary to call
+g_object_unref() on MIME parts returned from functions like
+g_mime_message_get_mime_part() or g_mime_multipart_get_part(). This
+was done to be more consistent with the Gtk+ API.</p>
+</div>
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