在ObjectArx中如何加載除"CONTINUOUS"之外的線型？

#define CommandB() { struct resbuf rB_cmd,rB_usr; \ acedGetVar("CMDECHO", &rB_cmd); \ rB_usr.restype = RTSHORT; \ rB_usr.resval.rint = (int) (0); \ acedSetVar("CMDECHO", &rB_usr); #define CommandE() acedSetVar("CMDECHO", &rB_cmd); \}; //添加新線形bool addNewLineType(char *linetypename){ AcDbLinetypeTable *pLinetypeTbl; bool flag1=true; acdbHostApplicationServices()->workingDatabase() ->getSymbolTable(pLinetypeTbl, AcDb::kForRead); if(!pLinetypeTbl->has(linetypename)) flag1=false; pLinetypeTbl->close(); if(!flag1) { CommandB(); if(acedCommand(RTSTR,"LINETYPE",RTSTR,"L",RTSTR,linetypename,RTSTR,"",RTSTR,"",0)!=RTNORM) acutPrintf("\n 調入線型%s時出現錯誤！",linetypename); CommandE(); return false; } return true;}