indexing
	description: "Contains information about the Wm_drawitem message."
	status: "See notice at end of class."
	date: "$Date$"
	revision: "$Revision$"

class interface
	WEL_DRAW_ITEM_STRUCT

create 

	make_by_pointer (pointer: POINTER)

feature -- Access

	ctl_id: INTEGER
			-- Control identifier

	ctl_type: INTEGER
			-- Control type.
			-- See class WEL_ODT_CONSTANTS.

	dc: WEL_CLIENT_DC
			-- Device context used when performing drawing
			-- operations on the control.

	item: POINTER
			-- Generic Windows handle or structure pointer.
			-- Can be a HWND, HICON, RECT *, WNDCLASS *, etc...
			-- (from WEL_ANY)

	item_action: INTEGER
			-- Drawing action required.
			-- See class WEL_ODA_CONSTANTS.

	item_data: INTEGER
			-- 32-bit value associated with the menu item.

	item_id: INTEGER
			-- Menu item identifier for a menu item or
			-- the index of the item in a list box or
			-- combo box

	item_state: INTEGER
			-- Visual state of the item after the current
			-- drawing action takes place.
			-- See class WEL_ODS_CONSTANTS.

	menu_item: WEL_MENU
			-- Identifies the control (menus only).
		require
			feature_supported: ctl_type = (create {WEL_ODT_CONSTANTS}).odt_menu

	rect_item: WEL_RECT
			-- Rectangle that defines the boundaries
			-- of the control to be drawn.
		ensure
			result_not_void: Result /= void

	window_item: WEL_CONTROL
			-- Identifies the control (cver all cases except menus).
		require
			feature_supported: ctl_type /= (create {WEL_ODT_CONSTANTS}).odt_menu
	
feature -- Measurement

	structure_size: INTEGER
			-- Size to allocate (in bytes)
		ensure -- from WEL_STRUCTURE
			positive_result: Result > 0
	
feature -- Status report

	exists: BOOLEAN
			-- Does the item exist?
			-- (from WEL_ANY)
		ensure -- from WEL_ANY
			Result = (item /= default_pointer)

	shared: BOOLEAN
			-- Is item shared by another object?
			-- If False (by default), item will
			-- be destroyed by destroy_item.
			-- If True, item will not be destroyed.
			-- (from WEL_ANY)
	
feature -- Status setting

	set_shared
			-- Set shared to True.
			-- (from WEL_ANY)
		ensure -- from WEL_ANY
			shared: shared

	set_unshared
			-- Set shared to False.
			-- (from WEL_ANY)
		ensure -- from WEL_ANY
			unshared: not shared
	
feature -- Element change

	set_item (an_item: POINTER)
			-- Set item with an_item
			-- (from WEL_ANY)
		ensure -- from WEL_ANY
			item_set: item = an_item
	
feature -- Removal

	dispose
			-- Destroy the inner structure of Current.
			--
			-- This function should be called by the GC when the
			-- object is collected or by the user if Current is
			-- no more usefull.
			-- (from WEL_ANY)
	
feature -- Conversion

	to_integer: INTEGER
			-- Converts item to an integer.
			-- (from WEL_ANY)
		ensure -- from WEL_ANY
			Result = cwel_pointer_to_integer (item)
	
feature -- Basic operations

	initialize
			-- Fill Current with zeros.
			-- (from WEL_STRUCTURE)
		require -- from WEL_STRUCTURE
			exists: exists

	initialize_with_character (a_character: CHARACTER)
			-- Fill current with a_character.
			-- (from WEL_STRUCTURE)
		require -- from WEL_STRUCTURE
			exists: exists

	memory_copy (source_pointer: POINTER; length: INTEGER)
			-- Copy length bytes from source_pointer to item.
			-- (from WEL_STRUCTURE)
		require -- from WEL_STRUCTURE
			length_small_enough: length <= structure_size
			length_large_enough: length > 0
			exists: exists
	
invariant

	dc_exists: dc /= void and then dc.exists
		-- from ANY
	reflexive_equality: standard_is_equal (Current)
	reflexive_conformance: conforms_to (Current)

end -- class WEL_DRAW_ITEM_STRUCT