VC动态操作MapX

  m_mapctrl.CreateCustomTool(ADD_MAPICON, miToolTypePoint,CComVariant(2),CComVariant(0),CComVariant(0),CComVariant(0));//, miCrossCursor 

void Cmap5testdlgDlg::ToolUsedMap1(short ToolNum, double X1, double Y1, double X2, double Y2, double Distance, BOOL Shift, BOOL Ctrl, BOOL* EnableDefault){ // TODO: 在此处添加消息处理程序代码 if(ToolNum==ADD_MAPICON) {       /*    得到特性工厂,由点创建Symbol得到feature->得到style,最后加入到层;    */  CMapXPoint   point;           CMapXFeature   feature;  COleVariant   vtPoint;    CMapXLayer layer=m_mapx->GetLayers().Item(1);    CMapXFeatureFactory   cFactory=m_mapx->GetFeatureFactory();               point.CreateDispatch(point.GetClsid());  point.Set(X1,Y1);               vtPoint.vt   =   VT_DISPATCH;           vtPoint.pdispVal   =   point.m_lpDispatch;           vtPoint.pdispVal->AddRef();  

  feature=cFactory.CreateSymbol(vtPoint);  //feature.SetCaption();//设置主键,或标签  //feature.SetKeyValue();  CMapXStyle   style=feature.GetStyle();         style.PickSymbol();//弹出对话框        feature.SetStyle(style.m_lpDispatch);           layer.SetAutoLabel(true);//自动显示标签或主键  layer.AddFeature(feature);  

 }

//方法二/*CMapXFeature fea;CMapXStyle sy;CString feakey;

if(!fea.CreateDispatch(fea.GetClsid())) {  TRACE0("Failed to Create Feature object");  return;}

if(!sy.CreateDispatch(sy.GetClsid())) {TRACE0("Failed to Create Feature object");return;}

sy.SetSymbolFontHalo(1);sy.GetSymbolFont().SetWeight(12);sy.SetSymbolCharacter(36);  //36表示五角星，还有其他图标sy.SetSymbolFontColor(0xff);

//if (feakey != "")//m_mapx->GetLayers().Item("MONLAY").DeleteFeature(feakey);try { fea.Attach(m_mapx->GetDispatch()); fea.SetType(miFeatureTypeSymbol); fea.SetStyle(sy);   fea.GetPoint().Set(X1,Y1); feakey = m_mapx->GetLayers().Item(1).AddFeature(fea).GetFeatureKey ();

 } catch (COleDispatchException *e) { e->ReportError(); e->Delete(); } catch (COleException *e) { e->ReportError(); e->Delete(); }*/}