class WEL_HD_ITEM Ancestors WEL_BIT_OPERATIONS WEL_HDF_CONSTANTS WEL_STRUCTURE* Descendants EV_HEADER_ITEM_IMP Clients EV_HEADER_IMP EV_HEADER_ITEM_IMP WEL_HD_ITEM WEL_HD_NOTIFY WEL_HEADER_CONTROL WEL_NM_HEADER Suppliers BOOLEAN INTEGER_32 STRING_32 STRING_GENERAL* WEL_BITMAP WEL_HDF_CONSTANTS WEL_HDI_CONSTANTS WEL_HD_ITEM WEL_STRING