关于arcengine加载注记图层的问题

注记图层的打开，不是这样收拾的。帮助里面有说怎么打开注记的。

顺便看我写的吧，能顺利打开注记图层的。

IFeatureClassPtr ipFClass;
HRESULT result = ipFeatureWorkspace->OpenFeatureClass(
 CComBSTR(layer.strSdeLayer), ;ipFClass);
if (FAILED(result) || NULL == ipFClass) {
 TRACE("\n缺少图层表：%s", layer.strSdeLayer);
 return FALSE;
}

esriFeatureType ftype;
result = ipFClass->get_FeatureType(;ftype);
if (FAILED(result)) {
 AfxMessageBox("查询SDE图层类型出现错误。");
 return FALSE;
}

ASSERT(NULL != ipGLayer);
if (esriFTAnnotation == ftype) {
 ILayerPtr ipLayer;
 IFeatureDatasetPtr d;
 ipFClass->get_FeatureDataset(;d);  
 IFDOGraphicsLayerFactoryPtr pGLF(CLSID_FDOGraphicsLayerFactory);
 pGLF->OpenGraphicsLayer(ipFeatureWorkspace, d, CComBSTR(layer.strSdeLayer), ;ipLayer);
 ipLayer->put_Name(CComBSTR(layer.strName));
 IAnnotationLayerPtr ipALayer = ipLayer;
 ipGLayer->Add((ILayerPtr)ipLayer);
}