 &lt;stack&gt;</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;</div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespace_v_s_t_g_u_i.html">VSTGUI</a> {</div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#1