indexing
	description: "Contains information about a list view notification %
				%message."
	status: "See notice at end of class."
	date: "$Date$"
	revision: "$Revision$"

class
	WEL_NM_LIST_VIEW

inherit
	WEL_STRUCTURE

create
	make,
	make_by_nmhdr,
	make_by_pointer

feature {NONE} -- Initialization

	make_by_nmhdr (a_nmhdr: WEL_NMHDR) is
			-- Make the structure with `a_nmhdr'.
		require
			a_nmhdr_not_void: a_nmhdr /= Void
		do
			make_by_pointer (a_nmhdr.item)
		end

feature -- Access

	hdr: WEL_NMHDR is
			-- Information about the Wm_notify message.
		do
			create Result.make_by_pointer (cwel_nm_listview_get_hdr (item))
		ensure
			result_not_void: Result /= Void
		end

	iitem: INTEGER is
			-- Information about the list view item or -1 if
			-- not used.
		do
			Result := cwel_nm_listview_get_iitem (item)
		end

	isubitem: INTEGER is
			-- Information about the subitem or 0 if none.
		do
			Result := cwel_nm_listview_get_isubitem (item)
		end

	unewstate: INTEGER is
			-- Information about the new item state or 0 if
			-- not used.
			-- See class WEL_LVIS_CONSTANTS.
		do
			Result := cwel_nm_listview_get_unewstate (item)
		end

	uoldstate: INTEGER is
			-- Information about the old item state or 0 if
			-- not used.		
		do
			Result := cwel_nm_listview_get_uoldstate (item)
		end

	uchanged: INTEGER is
			-- Information about the item attributes that
			-- has changed.
		do
			Result := cwel_nm_listview_get_uchanged (item)
		end

	position: WEL_POINT is
			-- Location at which the event occurred.
			-- valid argument only for the Lvn_begindrag and
			-- Lvn_beginrdrag notification messages.
		do
			create Result.make_by_pointer (cwel_nm_listview_get_ptaction (item))
		end

feature -- Measurement

	structure_size: INTEGER is
			-- Size to allocate (in bytes)
		once
			Result := c_size_of_nm_listview
		end

feature {NONE} -- Externals

	c_size_of_nm_listview: INTEGER is
		external
			"C [macro %"nmlv.h%"]"
		alias
			"sizeof (NM_LISTVIEW)"
		end

	cwel_nm_listview_get_hdr (ptr: POINTER): POINTER is
		external
			"C [macro %"nmlv.h%"] (NM_LISTVIEW*): EIF_POINTER"
		end

	cwel_nm_listview_get_iitem (ptr: POINTER): INTEGER is
		external
			"C [macro %"nmlv.h%"]"
		end

	cwel_nm_listview_get_isubitem (ptr: POINTER): INTEGER is
		external
			"C [macro %"nmlv.h%"]"
		end

	cwel_nm_listview_get_unewstate (ptr: POINTER): INTEGER is
		external
			"C [macro %"nmlv.h%"]"
		end

	cwel_nm_listview_get_uoldstate (ptr: POINTER): INTEGER is
		external
			"C [macro %"nmlv.h%"]"
		end

	cwel_nm_listview_get_uchanged (ptr: POINTER): INTEGER is
		external
			"C [macro %"nmlv.h%"]"
		end

	cwel_nm_listview_get_ptaction (ptr: POINTER): POINTER is
		external
			"C [macro %"nmlv.h%"] (NM_LISTVIEW*): EIF_POINTER"
		end

	cwel_nm_listview_get_lparam (ptr: POINTER): INTEGER is
		external
			"C [macro %"nmlv.h%"]"
		end

end -- class WEL_NM_LIST_VIEW

--|----------------------------------------------------------------
--| Windows Eiffel Library: library of reusable components for ISE Eiffel.
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--| Duplication and distribution prohibited.  May be used only with
--| ISE Eiffel, under terms of user license.
--| Contact Eiffel Software for any other use.
--|
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