vc 怎样在图层上添加图标和画线

<P>怎样在图层上添加图标和画线?</P>
<P>怎么我用下面代码添加文本时中文只能加几个字?</P>
<P>CMapXFeature fea,f,fNew;
 if(!fea.CreateDispatch(fea.GetClsid())) {
 TRACE0("Failed to Create Feature object");
 return;
 }
 fea.Attach(m_ctrlMapX.GetDispatch());
 try {
 
 fea.SetType(miFeatureTypeText);</P>
<P> fea.SetCaption("阿瑟灯笼裤惧色拉");
 fea.SetStyle(m_ctrlMapX.GetDefaultStyle());
 fea.GetPoint().Set(X1,Y1);
 m_ctrlMapX.GetLayers().Item("lytest").AddFeature(fea);</P>
<P> } catch (COleDispatchException *e) {
 e->ReportError();
 e->Delete();
 } catch (COleException *e) {
 e->ReportError();
 e->Delete();
 }</P>