xdata 쓰기 예제입니다. if (mdlElmdscr_read(&pDescr, filePosP , modelRef , FALSE , NULL) != 0) { ElementId regAppID; static MSWChar *s_applicationName = L"Rev.Pro"; if (SUCCESS == mdlRegApp_idFromName (®AppID, s_applicationName , mdlModelRef_getDgnFile(MASTERFILE), TRUE)) { XDataValueUnion data; int dataType; int groupCode; UInt32 dataSize; UInt32 index = NULL; if(pDescr->h.isHeader && pDescr->h.firstElem) { for(MSElementDescrP ptr = pDescr->h.firstElem;NULL != ptr;ptr = ptr->h.next) { UInt32 color = 0; mdlElement_getSymbology(&color, NULL , NULL , &(ptr->el)); //기존 데이타 있는지 체크.. if (SUCCESS != mdlLinkage_getXDataGroupCode (&data, &dataType, &dataSize, &groupCode, &(ptr->el) , &index)) { const int...