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  15 <link rel="chapter" href="chapter-intro.html" title="Background">
  16 <link rel="chapter" href="chapter-gtype.html" title="The GLib Dynamic Type System">
  17 <link rel="chapter" href="chapter-gobject.html" title="The GObject base class">
  18 <link rel="chapter" href="chapter-signal.html" title="The GObject messaging system">
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  22 <link rel="chapter" href="howto-gobject.html" title="How to define and implement a new GObject">
  23 <link rel="chapter" href="howto-interface.html" title="How to define and implement interfaces">
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  26 <link rel="chapter" href="tools-vala.html" title="Vala">
  27 <link rel="chapter" href="tools-gob.html" title="GObject builder">
  28 <link rel="chapter" href="tools-ginspector.html" title="Graphical inspection of GObjects">
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  52 <div class="preface" title="Introduction">
  53 <div class="titlepage"><div><div><h2 class="title">
  54 <a name="id552400"></a>Introduction</h2></div></div></div>
  55 <p>
  56                         Most modern programming languages come with their own native object
  57                         systems and additional fundamental algorithmic language constructs.
  58                         Just as GLib serves as an implementation of such fundamental
  59                         types and algorithms (linked lists, hash tables and so forth), the
  60                         GLib Object System provides the required implementations of a
  61                         flexible extensible and intentionally easy to map (into other
  62                         languages) object-oriented framework for C.
  63                         The substantial elements that are provided can be summarized as:
  64                         </p>
  65 <div class="itemizedlist"><ul class="itemizedlist" type="disc">
  66 <li class="listitem"><p>
  67                                          A generic type system to register arbitrary single-inherited
  68                                                 flat and deep derived types as well as interfaces for
  69                                                 structured types.
  70                                                 It takes care of creation, initialization and memory management
  71                                                 of the assorted object and class structures, maintains
  72                                                 parent/child relationships and deals with dynamic implementations
  73                                                 of such types. That is, their type specific implementations are
  74                                                 relocatable/unloadable during runtime.
  75                                 </p></li>
  76 <li class="listitem"><p>
  77                                                 A collection of fundamental type implementations, such as integers,
  78                                                 doubles, enums and structured types, to name a few.
  79                                 </p></li>
  80 <li class="listitem"><p>
  81                                                 A sample fundamental type implementation to base object hierarchies
  82                                                 upon - the GObject fundamental type.
  83                                 </p></li>
  84 <li class="listitem"><p>
  85                                                 A signal system that allows very flexible user customization of
  86                                                 virtual/overridable object methods and can serve as a powerful
  87                                                 notification mechanism.
  88                                 </p></li>
  89 <li class="listitem"><p>
  90                                                 An extensible parameter/value system, supporting all the provided
  91                                                 fundamental types that can be used to generically handle object
  92                                                 properties or otherwise parameterized types.
  93                                 </p></li>
  94 </ul></div>
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