e GUI system needs the <a href="../render.html">Render</a> and the
	<a href="ui.html">UI</a> systems to be initialized before being initialized
	itself.
</p>

<code>
	<span class="codeclass">GUI</span>::<span class="codefunc">Init</span>();<br/>
	<br/>
	<span class="codecomm">// main loop</span><br/>
	<span class="codekeyw">while</span> (<span class="codekeyw">true</span>) {<br/>
	&nbsp;&nbsp;&nbsp;&nbsp;<span class="codecomm">// GUI widgets go here</span><br/>
	&nbsp;&nbsp;&nbsp;&nbsp;<span class="codeclas