CAD把实体放到当前选择集中

主要用到函数说明：

_DMxDrawX::AddCurrentSelect

把实体放到当前选择集中，详细说明如下：

参数	说明
LONGLONG lId	实体id
VARIANT_BOOL isShowGrid	是否同时显示夹点,默认为TRUE
isUpdateDisplay	是否自动调用更新显示

js代码实现如下：

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function MouseEvent(dX, dY, lType) {                     if(lType == 3)                     {                         // 鼠标右键按下                         var filter = mxOcx.NewResbuf();                           // 5020 = RTDXF0,只选择直线实体，设置过滤条件                           //filter.AddStringEx("LINE",5020);                           var ent = mxOcx.FindEntAtPoint(dX, dY, filter);                           var sPopMenu;                         if(ent != null)                         {                             mxOcx.ClearCurrentSelect();                             mxOcx.AddCurrentSelect(ent.ObjectID,true,true);                               sPopMenu = mxOcx.GetOcxAppPath() + "\MxPopMenuEnt.mnu"                         }                         else                         {                             sPopMenu = mxOcx.GetOcxAppPath() + "\MxPopMenu.mnu"                         }                             mxOcx.TrackPopupMenu(dX, dY, sPopMenu);                         // 设置1，表示鼠标事件，不再往下传递.                         mxOcx.SetEventRet(1);                         }                     }