x");      if (!paa)         return ERROR_INT("paa not defined", procName, 0);     if (!box)         return ERROR_INT("box not defined", procName, 0);     if (copyflag != L_INSERT && copyflag != L_COPY && copyflag != L_CLONE)         return ERROR_INT("invalid copyflag", procName, 0);      boxaAddBox(p