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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
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<title>Part V. Migrating from Previous Versions of GTK+: GTK+ 3 Reference Manual</title>
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<div class="part">
<div class="titlepage"><div><div><h1 class="title">
<a name="migrating"></a>Part V. Migrating from Previous Versions of GTK+</h1></div></div></div>
<div class="partintro">
<div></div>
<p>
        This part describes what you need to change in programs use
        older versions of GTK+ so that they can use the new features.
        It also mentions how to convert applications using widgets
        found in the libgnomeui library to use their counterparts
        in GTK+.
      </p>
<div class="toc">
<p><b>Table of Contents</b></p>
<dl class="toc">
<dt><span class="chapter"><a href="gtk-migrating-2-to-3.html">Migrating from GTK+ 2.x to GTK+ 3</a></span></dt>
<dd><dl>
<dt><span class="section"><a href="gtk-migrating-2-to-3.html#id-1.6.3.3">Preparation in GTK+ 2.x</a></span></dt>
<dd><dl>
<dt><span class="section"><a href="gtk-migrating-2-to-3.html#id-1.6.3.3.3">Do not include individual headers</a></span></dt>
<dt><span class="section"><a href="gtk-migrating-2-to-3.html#id-1.6.3.3.4">Do not use deprecated symbols</a></span></dt>
<dt><span class="section"><a href="gtk-migrating-2-to-3.html#id-1.6.3.3.5">Use accessor functions instead of direct access</a></span></dt>
<dt><span class="section"><a href="gtk-migrating-2-to-3.html#id-1.6.3.3.6">Replace GDK_&lt;keyname&gt; with GDK_KEY_&lt;keyname&gt;</a></span></dt>
<dt><span class="section"><a href="gtk-migrating-2-to-3.html#id-1.6.3.3.7">Use GIO for launching applications</a></span></dt>
<dt><span class="section"><a href="gtk-migrating-2-to-3.html#id-1.6.3.3.8">Use cairo for drawing</a></span></dt>
</dl></dd>
<dt><span class="section"><a href="ch26s02.html">Changes that need to be done at the time of the switch</a></span></dt>
<dd><dl>
<dt><span class="section"><a href="ch26s02.html#id-1.6.3.4.3">Replace size_request by get_preferred_width/height</a></span></dt>
<dt><span class="section"><a href="ch26s02.html#id-1.6.3.4.4">Replace GdkRegion by cairo_region_t</a></span></dt>
<dt><span class="section"><a href="ch26s02.html#id-1.6.3.4.5">Replace GdkPixmap by cairo surfaces</a></span></dt>
<dt><span class="section"><a href="ch26s02.html#id-1.6.3.4.6">Replace GdkColormap by GdkVisual</a></span></dt>
<dt><span class="section"><a href="ch26s02.html#id-1.6.3.4.7">GdkDrawable is gone</a></span></dt>
<dt><span class="section"><a href="ch26s02.html#id-1.6.3.4.8">Event filtering</a></span></dt>
<dt><span class="section"><a href="ch26s02.html#id-1.6.3.4.9">Backend-specific code</a></span></dt>
<dt><span class="section"><a href="ch26s02.html#id-1.6.3.4.10">GtkPlug and GtkSocket</a></span></dt>
<dt><span class="section"><a href="ch26s02.html#id-1.6.3.4.11">The GtkWidget::draw signal</a></span></dt>
<dt><span class="section"><a href="ch26s02.html#id-1.6.3.4.12">GtkProgressBar orientation</a></span></dt>
<dt><span class="section"><a href="ch26s02.html#id-1.6.3.4.13">Check your expand and fill flags</a></span></dt>
<dt><span class="section"><a href="ch26s02.html#id-1.6.3.4.14">Scrolling changes</a></span></dt>
<dt><span class="section"><a href="ch26s02.html#id-1.6.3.4.15">GtkObject is gone</a></span></dt>
<dt><span class="section"><a href="ch26s02.html#id-1.6.3.4.16">GtkEntryCompletion signal parameters</a></span></dt>
<dt><span class="section"><a href="ch26s02.html#id-1.6.3.4.17">Resize grips</a></span></dt>
<dt><span class="section"><a href="ch26s02.html#id-1.6.3.4.18">Prevent mixed linkage</a></span></dt>
<dt><span class="section"><a href="ch26s02.html#id-1.6.3.4.19">Install GTK+ modules in the right place</a></span></dt>
</dl></dd>
</dl></dd>
<dt><span class="chapter"><a href="gtk-migrating-GtkStyleContext.html">Theming changes</a></span></dt>
<dd><dl>
<dt><span class="section"><a href="gtk-migrating-GtkStyleContext.html#gtk-migrating-GtkStyleContext-themes">Migrating themes</a></span></dt>
<dt><span class="section"><a href="gtk-migrating-theme-GtkStyleContext-engines.html">Migrating theme engines</a></span></dt>
<dt><span class="section"><a href="gtk-migrating-GtkStyleContext-parser-extensions.html">Extending the CSS parser</a></span></dt>
<dt><span class="section"><a href="gtk-migrating-GtkStyleContext-css.html">Using the CSS file format</a></span></dt>
<dt><span class="section"><a href="gtk-migrating-GtkStyleContext-checklist.html">A checklist for widgets</a></span></dt>
<dt><span class="section"><a href="gtk-migrating-GtkStyleContext-parsing.html">Parsing of custom resources</a></span></dt>
<dt><span class="section"><a href="gtk-migrating-GtkStyleContext-bonus-points.html">Bonus points</a></span></dt>
</dl></dd>
<dt><span class="chapter"><a href="gtk-migrating-unique-GtkApplication.html">Migrating from libunique to GApplication or GtkApplication</a></span></dt>
<dd><dl>
<dt><span class="section"><a href="gtk-migrating-unique-GtkApplication.html#id-1.6.5.5">Uniqueness</a></span></dt>
<dt><span class="section"><a href="ch28s02.html">Commands and Messages</a></span></dt>
</dl></dd>
<dt><span class="chapter"><a href="gtk-migrating-smclient-GtkApplication.html">Migrating from EggSMClient to GtkApplication</a></span></dt>
<dt><span class="chapter"><a href="gtk-migrating-GtkGrid.html">Migrating from other containers to GtkGrid</a></span></dt>
<dd><dl>
<dt><span class="section"><a href="gtk-migrating-GtkGrid.html#id-1.6.7.4">GtkBox versus GtkGrid: packing</a></span></dt>
<dt><span class="section"><a href="ch30s02.html">GtkBox versus GtkGrid: sizing</a></span></dt>
<dt><span class="section"><a href="ch30s03.html">GtkBox versus GtkGrid: spacing</a></span></dt>
</dl></dd>
<dt><span class="chapter"><a href="gtk-migrating-checklist.html">Migration Details Checklist</a></span></dt>
<dd><dl>
<dt><span class="section"><a href="gtk-migrating-checklist.html#checklist-popup-menu">Implement GtkWidget::popup_menu</a></span></dt>
<dt><span class="section"><a href="checklist-gdkeventexpose-region.html">Use GdkEventExpose.region</a></span></dt>
<dt><span class="section"><a href="checklist-modifiers.html">Test for modifier keys correctly</a></span></dt>
<dt><span class="section"><a href="checklist-named-icons.html">Use named icons</a></span></dt>
</dl></dd>
<dt><span class="chapter"><a href="gtk-migrating-3-x-to-y.html">Migrating from one GTK+ 3 release to another</a></span></dt>
<dd><dl>
<dt><span class="section"><a href="gtk-migrating-3-x-to-y.html#id-1.6.9.4">Changes in GTK+ 3.2</a></span></dt>
<dt><span class="section"><a href="ch32s02.html">Changes in GTK+ 3.4</a></span></dt>
<dt><span class="section"><a href="ch32s03.html">Changes in GTK+ 3.6</a></span></dt>
<dt><span class="section"><a href="ch32s04.html">Changes in GTK+ 3.8</a></span></dt>
<dt><span class="section"><a href="ch32s05.html">Changes in GTK+ 3.10</a></span></dt>
<dt><span class="section"><a href="ch32s06.html">Changes in GTK+ 3.12</a></span></dt>
<dt><span class="section"><a href="ch32s07.html">Changes in GTK+ 3.14</a></span></dt>
<dt><span class="section"><a href="ch32s08.html">Changes in GTK+ 3.16</a></span></dt>
<dt><span class="section"><a href="ch32s09.html">Changes in GTK+ 3.18</a></span></dt>
<dt><span class="section"><a href="ch32s10.html">Changes in GTK+ 3.20</a></span></dt>
<dt><span class="section"><a href="ch32s11.html">Changes in GTK+ 3.22</a></span></dt>
</dl></dd>
</dl>
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