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<div class="part">
<div class="titlepage"><div><div><h1 class="title">
<a name="gtk"></a>Part I. GTK+ Overview</h1></div></div></div>
<div class="partintro">
<div></div>
<p>
GTK+ is a library for creating graphical user interfaces. It
works on many UNIX-like platforms, Windows, and OS X.
GTK+ is released under the GNU Library General Public License
(GNU LGPL), which allows for flexible licensing of client
applications. GTK+ has a C-based object-oriented architecture that
allows for maximum flexibility. Bindings for many other languages have
been written, including C++, Objective-C, Guile/Scheme, Perl, Python,
TOM, Ada95, Free Pascal, and Eiffel.
</p>
<p>
GTK+ depends on the following libraries:
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">GLib</span></p></td>
<td><p>
A general-purpose utility library, not specific to graphical user interfaces.
GLib provides many useful data types, macros, type conversions,
string utilities, file utilities, a main loop abstraction, and so on.
</p></td>
</tr>
<tr>
<td><p><span class="term">GObject</span></p></td>
<td><p>A library that provides a type system, a collection of
fundamental types including an object type, a signal system.
</p></td>
</tr>
<tr>
<td><p><span class="term">GIO</span></p></td>
<td><p>A modern, easy-to-use VFS API including abstractions for
files, drives, volumes, stream IO, as well as network programming and
DBus communication.
</p></td>
</tr>
<tr>
<td><p><span class="term">cairo</span></p></td>
<td><p>Cairo is a 2D graphics library with support for multiple
output devices.
</p></td>
</tr>
<tr>
<td><p><span class="term">Pango</span></p></td>
<td><p>
Pango is a library for internationalized text handling. It centers
around the PangoLayout object, representing a paragraph of text.
Pango provides the engine for GtkTextView, GtkLabel, GtkEntry, and
other widgets that display text.
</p></td>
</tr>
<tr>
<td><p><span class="term">ATK</span></p></td>
<td><p>
ATK is the Accessibility Toolkit. It provides a set of generic
interfaces allowing accessibility technologies to interact with a
graphical user interface. For example, a screen reader uses ATK to
discover the text in an interface and read it to blind users. GTK+
widgets have built-in support for accessibility using the ATK
framework.
</p></td>
</tr>
<tr>
<td><p><span class="term">GdkPixbuf</span></p></td>
<td><p>
This is a small library which allows you to create GdkPixbuf
("pixel buffer") objects from image data or image files.
Use a GdkPixbuf in combination with GtkImage to display images.
</p></td>
</tr>
<tr>
<td><p><span class="term">GDK</span></p></td>
<td><p>
GDK is the abstraction layer that allows GTK+ to support multiple
windowing systems. GDK provides window system facilities on X11, Windows,
and OS X.
</p></td>
</tr>
<tr>
<td><p><span class="term">GTK+</span></p></td>
<td><p>
The GTK+ library itself contains <em class="firstterm">widgets</em>,
that is, GUI components such as GtkButton or GtkTextView.
</p></td>
</tr>
</tbody>
</table></div>
<p>
</p>
<div class="toc">
<p><b>Table of Contents</b></p>
<dl class="toc">
<dt><span class="chapter"><a href="gtk-getting-started.html">Getting Started with GTK+</a></span></dt>
<dd><dl>
<dt><span class="section"><a href="gtk-getting-started.html#id-1.2.3.5">Basics</a></span></dt>
<dt><span class="section"><a href="ch01s02.html">Packing</a></span></dt>
<dt><span class="section"><a href="ch01s03.html">Building user interfaces</a></span></dt>
<dt><span class="section"><a href="ch01s04.html">Building applications</a></span></dt>
<dd><dl>
<dt><span class="section"><a href="ch01s04.html#id-1.2.3.12.5">A trivial application</a></span></dt>
<dt><span class="section"><a href="ch01s04.html#id-1.2.3.12.6">Populating the window</a></span></dt>
<dt><span class="section"><a href="ch01s04.html#id-1.2.3.12.7">Opening files</a></span></dt>
<dt><span class="section"><a href="ch01s04.html#id-1.2.3.12.8">An application menu</a></span></dt>
<dt><span class="section"><a href="ch01s04.html#id-1.2.3.12.9">A preference dialog</a></span></dt>
<dt><span class="section"><a href="ch01s04.html#id-1.2.3.12.10">Adding a search bar</a></span></dt>
<dt><span class="section"><a href="ch01s04.html#id-1.2.3.12.11">Adding a side bar</a></span></dt>
<dt><span class="section"><a href="ch01s04.html#id-1.2.3.12.12">Properties</a></span></dt>
<dt><span class="section"><a href="ch01s04.html#id-1.2.3.12.13">Header bar</a></span></dt>
</dl></dd>
<dt><span class="section"><a href="ch01s05.html">Custom Drawing</a></span></dt>
</dl></dd>
<dt>
<span class="refentrytitle"><a href="gtk-resources.html">Mailing lists and bug reports</a></span><span class="refpurpose"> —
Getting help with GTK+
</span>
</dt>
<dt>
<span class="refentrytitle"><a href="gtk-question-index.html">Common Questions</a></span><span class="refpurpose"> —
Find answers to common questions in the GTK+ manual
</span>
</dt>
<dt>
<span class="refentrytitle"><a href="chap-drawing-model.html">The GTK+ Drawing Model</a></span><span class="refpurpose"> —
The GTK+ drawing model in detail
</span>
</dt>
<dt>
<span class="refentrytitle"><a href="chap-input-handling.html">The GTK+ Input and Event Handling Model</a></span><span class="refpurpose"> —
GTK+ input and event handling in detail
</span>
</dt>
</dl>
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