ArcMap中的Labeling工具条使用MapLex引擎时最右侧的fast&best，Engine如何设置？

【解决办法】：
Engine中对应的接口为IMaplexOverposterProperties，属性是PlacementQuality。其中枚举类型esriMaplexPlacementQuality，如果想设置为ArcMap中的Fast，这里设置为esriMaplexPlacementQualityLow，如果想设置为ArcMap中的Best，这里设置为esriMaplexPlacementQualityHigh。

 参考代码（以设为Best为例）：

IMap pMap = axMapControl1.Map;                

 IAnnotateMap maplex = new MaplexAnnotateMapClass();

 pMap.AnnotationEngine = maplex;

 IMaplexOverposterProperties pMaplexOP = new MaplexOverposterPropertiesClass();

 pMaplexOP.PlacementQuality = esriMaplexPlacementQuality.esriMaplexPlacementQualityHigh;

 IOverposterProperties pOP = pMaplexOP as IOverposterProperties;

 IMapOverposter mapOverposter = pMap as IMapOverposter;

 mapOverposter.OverposterProperties = pOP;