    class
    	WEL_HDM_CONSTANTS

    General
    	cluster: wel
    	description: "Messages associated with WEL_HEADER_CONTROL."

    Ancestors
    	ANY

    Queries
    	Hdm_delete_item: INTEGER_32
    	Hdm_first: INTEGER_32
    	Hdm_get_bitmap_margin: INTEGER_32
    	Hdm_get_image_list: INTEGER_32
    	Hdm_get_item: INTEGER_32
    	Hdm_get_item_count: INTEGER_32
    	Hdm_get_item_rect: INTEGER_32
    	Hdm_hit_test: INTEGER_32
    	Hdm_insert_item: INTEGER_32
    	Hdm_layout: INTEGER_32
    	Hdm_set_image_list: INTEGER_32
    	Hdm_set_item: INTEGER_32