ss="keyword">const</span> <a class="code" href="struct_v_s_t_g_u_i_1_1_c_point.html">CPoint</a>&amp; offset = <a class="code" href="struct_v_s_t_g_u_i_1_1_c_point.html">CPoint</a> (0, 0), <span class="keywordtype">float</span> alpha = 1.f) = 0; </div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">void</span> drawBitmapNinePartTi