[求助]关于IClassBreaksRenderer的使用问题

<P>在Engine中，我使用IClassBreaksRenderer实现根据某个属性值的范围渲染不同的颜色</P>
<P>IClassifyPtr pClassify(CLSID_EqualInterval);<BR>// IClassBreaksUIPropertiesPtr pClassBreaksRend1(CLSID_ClassBreaksRenderer);<BR> IClassBreaksRendererPtr pClassBreaksRend(CLSID_ClassBreaksRenderer);</P>
<P> <FONT color=#f70968><FONT color=#1111ee>ITableHistogramPtr pTableHistogram(CLSID_TableHistogram);</FONT><BR></FONT> IHistogramPtr pHistogram(pTableHistogram);<BR> VARIANT dataFrequency;<BR> VARIANT dataValues;<BR> <BR> <BR>// Get values and frequencies for the population field<BR>//   into a table histogram object<BR>  pTableHistogram->put_Field(_bstr_t(strPopField1)); <BR>  pTableHistogram->putref_Table(pTable) ;<BR>  hr = pHistogram->GetHistogram(;dataValues, ;dataFrequency);</P>
<P>  if(FAILED(hr)) return;<BR>  <BR>//  ' Put the values and frequencies into an Equal Interval classify object<BR>//  '<BR>  hr = pClassify->SetHistogramData(dataValues, dataFrequency);</P>
<P>能够实现我所要的功能，可是我在Library Locator中查找<FONT color=#1111ee>TableHistogram发现：</FONT></P>
<P>Available with ArcGIS Desktop，是不是说这个类只能支持Desktop，Engine下不能</P>
<P>使用？要在Engine下实现类似功能有别的替代类吗？</P>