<a name="l00061"></a><span class="lineno">   61</span>&#160;        <span class="keyword">static</span> <span class="keywordtype">void</span> premultiplyAlpha (BYTE* ptr, UINT bytesPerRow, <span class="keyword">const</span> CPoint&amp; size);</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;        <span class="keyword">static</span> <span class="keywordtype">void</span> unpremultiplyAlpha (BYTE* ptr, UINT bytesPerRow, <span class="keyword">const</span> CPoint&amp; size);</