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<a name="sec-wrapping-initialization"></a>Initialization</h2></div></div></div>
<p>Your library must be initialized before it can be used, to register the
new types that it makes available. Also, the C library that you are wrapping
might have its own initialization function that you should call. You can do
this in an <code class="function">init()</code> function that you can place in
hand-coded <code class="filename">init.h</code> and <code class="filename">init.cc</code>
files. This function should initialize your dependencies (such as the C
function, and <span class="application">gtkmm</span>) and call your generated
<code class="function">wrap_init()</code> function. For instance:
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<pre class="programlisting">
void init()
{
Gtk::Main::init_gtkmm_internals(); //Sets up the g type system and the Glib::wrap() table.
wrap_init(); //Tells the Glib::wrap() table about the libsomethingmm classes.
}
</pre>
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<p>The implementation of the <code class="function">wrap_init()</code> method in
<code class="filename">wrap_init.cc</code> is generated by
<code class="filename">generate_wrap_init.pl</code>, but the declaration in
<code class="filename">wrap_init.h</code> is hand-coded, so you will need to adjust
<code class="filename">wrap_init.h</code> so that the <code class="function">wrap_init()</code>
function appears in the correct C++ namespace.</p>
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