求教UF_ASSEM_add_part_to_assembly的用法

miraculous

建立一个空的prt文件后，想执行以下代码实现matrix.prt文件的载入：
  
  tag_t ParentPart;
                tag_t InstTag;
  char PartName[] = "F:\\UG\\work\\matrix.prt";  
  char RefsetName[] = "MODEL";
  char InstanceName[] = "MATRIX_new";
  double Origin[3] = {0.0,0.0,0.0};
  double CsysMatrix[6] = {1.0,0.0,0.0,                   0.0,1.0,0.0};
  int layer = 1;
  UF_PART_load_status_t ErrorStatus;
  
  tag_t DisplayPart = UF_PART_ask_display_part();
 &nbsparentPart = UF_ASSEM_ask_root_part_occ(DisplayPart);
  
  int Irc =  UF_ASSEM_add_part_to_assembly(ParentPart,PartName,RefsetName,
InstanceName,Origin,CsysMatrix,layer,[$InstTag,&ErrorStatus)]
  
这里面的ParentPart的tag值该如何赋予？
另外请问各位高手，其它参数这样使用有没有问题？
谢谢！

miraculous