span class="codecomm">// buttons</span><br/>
	<span class="codekeyw">if</span> (<span class="codeclass">GUI</span>::<span class="codefunc">Button</span>(<span class="codelit">"Click here!"</span>)) {<br/>
	&nbsp;&nbsp;&nbsp;&nbsp;<span class="codefunc">printf</span>(<span class="codelit">"Button clicked!\n"</span>);<br/>
	}<br/>
	<br/>
	<span class="codekeyw">enum</span> {<br/>
	&nbsp;&nbsp;&nbsp;&nbsp;CHOICE_NONE,<br/>
	&nbsp;&nbsp;&nbsp;&nbsp;CHOICE_A,<br/>
	&nbsp;&nbsp;&nbsp;&nbsp;CHOICE_B<br/>
	};<br/>
