    indexing
    	description: "EiffelVision accelerator. Mswindows implementation."
    	legal: "See notice at end of class."
    	status: "See notice at end of class."
    	date: "$Date$"
    	revision: "$Revision$"

    class interface
    	EV_ACCELERATOR_IMP

    create
    	make (an_interface: like interface)
    			-- Create `Current' with interface `an_interface'.
    		require -- from EV_ANY_I
    			an_interface_not_void: an_interface /= Void
    		ensure -- from EV_ANY_I
    			interface_assigned: interface = an_interface
    			base_make_called: base_make_called

    feature -- Access

    	alt_required: BOOLEAN
    			-- Must the alt key be pressed?

    	command_id: INTEGER_32
    			-- Command id of accelerator
    			-- (from WEL_ACCELERATOR)

    	control_required: BOOLEAN
    			-- Must the control key be pressed?

    	disable_parented
    			-- Assign False to parented.
    			-- (from EV_ACCELERATOR_I)

    	enable_parented
    			-- Assign True to parented.
    			-- (from EV_ACCELERATOR_I)

    	flags: INTEGER_32
    			-- Flags of accelerator
    			-- (from WEL_ACCELERATOR)

    	generating_type: STRING_8
    			-- Name of current object's generating type
    			-- (type of which it is a direct instance)
    			-- (from ANY)

    	generator: STRING_8
    			-- Name of current object's generating class
    			-- (base class of the type of which it is a direct instance)
    			-- (from ANY)

    	id: INTEGER_32
    			-- Unique identifier within system.
    			-- (from EV_ID_IMP)

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

    	key: EV_KEY
    			-- `Result' is key used by `Current' key combination.

    	wel_key: INTEGER_32
    			-- Key of accelerator
    			-- (from WEL_ACCELERATOR)

    	key_code_from_key_string (key_string: STRING_GENERAL): INTEGER_32
    			-- Key code value from `key_string'
    			-- (from EV_KEY_CONSTANTS)
    		require -- from EV_KEY_CONSTANTS
    			key_string_not_void: key_string /= Void

    	key_strings: ARRAY [STRING_32]
    			-- String representations of all key codes.
    			-- (from EV_KEY_CONSTANTS)

    	parented: BOOLEAN
    			-- Does `Current' have a parent?
    			-- (from EV_ACCELERATOR_I)

    	shift_required: BOOLEAN
    			-- Must the shift key be pressed?

    	vk_0: INTEGER_32 is 48
    			-- (from WEL_VK_CONSTANTS)

    	vk_1: INTEGER_32 is 49
    			-- (from WEL_VK_CONSTANTS)

    	vk_2: INTEGER_32 is 50
    			-- (from WEL_VK_CONSTANTS)

    	vk_3: INTEGER_32 is 51
    			-- (from WEL_VK_CONSTANTS)

    	vk_4: INTEGER_32 is 52
    			-- (from WEL_VK_CONSTANTS)

    	vk_5: INTEGER_32 is 53
    			-- (from WEL_VK_CONSTANTS)

    	vk_6: INTEGER_32 is 54
    			-- (from WEL_VK_CONSTANTS)

    	vk_7: INTEGER_32 is 55
    			-- (from WEL_VK_CONSTANTS)

    	vk_8: INTEGER_32 is 56
    			-- (from WEL_VK_CONSTANTS)

    	vk_9: INTEGER_32 is 57
    			-- Vk_a thru Vk_z are the same as their ASCII equivalents: 'A' thru 'Z'.
    			-- (from WEL_VK_CONSTANTS)

    	vk_a: INTEGER_32 is 65
    			-- (from WEL_VK_CONSTANTS)

    	vk_add: INTEGER_32 is 107
    			-- Declared in Windows as VK_ADD
    			-- (from WEL_VK_CONSTANTS)

    	vk_alt: INTEGER_32 is 18
    			-- Declared in Windows as VK_MENU
    			-- Was declared in WEL_VK_CONSTANTS as synonym of Vk_menu.
    			-- (from WEL_VK_CONSTANTS)

    	vk_apps: INTEGER_32 is 93
    			-- Declared in Windows as VK_APPS
    			-- Vk_0 thru Vk_9 are the same as their ASCII equivalents: '0' thru '9'.
    			-- (from WEL_VK_CONSTANTS)

    	vk_b: INTEGER_32 is 66
    			-- (from WEL_VK_CONSTANTS)

    	vk_back: INTEGER_32 is 8
    			-- Declared in Windows as VK_BACK
    			-- (from WEL_VK_CONSTANTS)

    	vk_c: INTEGER_32 is 67
    			-- (from WEL_VK_CONSTANTS)

    	vk_cancel: INTEGER_32 is 3
    			-- Declared in Windows as VK_CANCEL
    			-- (from WEL_VK_CONSTANTS)

    	vk_capital: INTEGER_32 is 20
    			-- Declared in Windows as VK_CAPITAL
    			-- (from WEL_VK_CONSTANTS)

    	vk_clear: INTEGER_32 is 12
    			-- Declared in Windows as VK_CLEAR
    			-- (from WEL_VK_CONSTANTS)

    	vk_control: INTEGER_32 is 17
    			-- Declared in Windows as VK_CONTROL
    			-- (from WEL_VK_CONSTANTS)

    	vk_d: INTEGER_32 is 68
    			-- (from WEL_VK_CONSTANTS)

    	vk_decimal: INTEGER_32 is 110
    			-- Declared in Windows as VK_DECIMAL
    			-- (from WEL_VK_CONSTANTS)

    	vk_delete: INTEGER_32 is 46
    			-- Declared in Windows as VK_DELETE
    			-- (from WEL_VK_CONSTANTS)

    	vk_divide: INTEGER_32 is 111
    			-- Declared in Windows as VK_DIVIDE
    			-- (from WEL_VK_CONSTANTS)

    	vk_down: INTEGER_32 is 40
    			-- Declared in Windows as VK_DOWN
    			-- (from WEL_VK_CONSTANTS)

    	vk_e: INTEGER_32 is 69
    			-- (from WEL_VK_CONSTANTS)

    	vk_end: INTEGER_32 is 35
    			-- Declared in Windows as VK_END
    			-- (from WEL_VK_CONSTANTS)

    	vk_escape: INTEGER_32 is 27
    			-- Declared in Windows as VK_ESCAPE
    			-- (from WEL_VK_CONSTANTS)

    	vk_execute: INTEGER_32 is 43
    			-- Declared in Windows as VK_EXECUTE
    			-- (from WEL_VK_CONSTANTS)

    	vk_f: INTEGER_32 is 70
    			-- (from WEL_VK_CONSTANTS)

    	vk_f1: INTEGER_32 is 112
    			-- Declared in Windows as VK_F1
    			-- (from WEL_VK_CONSTANTS)

    	vk_f10: INTEGER_32 is 121
    			-- Declared in Windows as VK_F10
    			-- (from WEL_VK_CONSTANTS)

    	vk_f11: INTEGER_32 is 122
    			-- Declared in Windows as VK_F11
    			-- (from WEL_VK_CONSTANTS)

    	vk_f12: INTEGER_32 is 123
    			-- Declared in Windows as VK_F12
    			-- (from WEL_VK_CONSTANTS)

    	vk_f13: INTEGER_32 is 124
    			-- Declared in Windows as VK_F13
    			-- (from WEL_VK_CONSTANTS)

    	vk_f14: INTEGER_32 is 125
    			-- Declared in Windows as VK_F14
    			-- (from WEL_VK_CONSTANTS)

    	vk_f15: INTEGER_32 is 126
    			-- Declared in Windows as VK_F15
    			-- (from WEL_VK_CONSTANTS)

    	vk_f16: INTEGER_32 is 127
    			-- Declared in Windows as VK_F16
    			-- (from WEL_VK_CONSTANTS)

    	vk_f17: INTEGER_32 is 128
    			-- Declared in Windows as VK_F17
    			-- (from WEL_VK_CONSTANTS)

    	vk_f18: INTEGER_32 is 129
    			-- Declared in Windows as VK_F18
    			-- (from WEL_VK_CONSTANTS)

    	vk_f19: INTEGER_32 is 130
    			-- Declared in Windows as VK_F19
    			-- (from WEL_VK_CONSTANTS)

    	vk_f2: INTEGER_32 is 113
    			-- Declared in Windows as VK_F2
    			-- (from WEL_VK_CONSTANTS)

    	vk_f20: INTEGER_32 is 131
    			-- Declared in Windows as VK_F20
    			-- (from WEL_VK_CONSTANTS)

    	vk_f21: INTEGER_32 is 132
    			-- Declared in Windows as VK_F21
    			-- (from WEL_VK_CONSTANTS)

    	vk_f22: INTEGER_32 is 133
    			-- Declared in Windows as VK_F22
    			-- (from WEL_VK_CONSTANTS)

    	vk_f23: INTEGER_32 is 134
    			-- Declared in Windows as VK_F23
    			-- (from WEL_VK_CONSTANTS)

    	vk_f24: INTEGER_32 is 135
    			-- Declared in Windows as VK_F24
    			-- (from WEL_VK_CONSTANTS)

    	vk_f3: INTEGER_32 is 114
    			-- Declared in Windows as VK_F3
    			-- (from WEL_VK_CONSTANTS)

    	vk_f4: INTEGER_32 is 115
    			-- Declared in Windows as VK_F4
    			-- (from WEL_VK_CONSTANTS)

    	vk_f5: INTEGER_32 is 116
    			-- Declared in Windows as VK_F5
    			-- (from WEL_VK_CONSTANTS)

    	vk_f6: INTEGER_32 is 117
    			-- Declared in Windows as VK_F6
    			-- (from WEL_VK_CONSTANTS)

    	vk_f7: INTEGER_32 is 118
    			-- Declared in Windows as VK_F7
    			-- (from WEL_VK_CONSTANTS)

    	vk_f8: INTEGER_32 is 119
    			-- Declared in Windows as VK_F8
    			-- (from WEL_VK_CONSTANTS)

    	vk_f9: INTEGER_32 is 120
    			-- Declared in Windows as VK_F9
    			-- (from WEL_VK_CONSTANTS)

    	vk_g: INTEGER_32 is 71
    			-- (from WEL_VK_CONSTANTS)

    	vk_h: INTEGER_32 is 72
    			-- (from WEL_VK_CONSTANTS)

    	vk_help: INTEGER_32 is 47
    			-- Declared in Windows as VK_HELP
    			-- (from WEL_VK_CONSTANTS)

    	vk_home: INTEGER_32 is 36
    			-- Declared in Windows as VK_HOME
    			-- (from WEL_VK_CONSTANTS)

    	vk_i: INTEGER_32 is 73
    			-- (from WEL_VK_CONSTANTS)

    	vk_insert: INTEGER_32 is 45
    			-- Declared in Windows as VK_INSERT
    			-- (from WEL_VK_CONSTANTS)

    	vk_j: INTEGER_32 is 74
    			-- (from WEL_VK_CONSTANTS)

    	vk_k: INTEGER_32 is 75
    			-- (from WEL_VK_CONSTANTS)

    	vk_l: INTEGER_32 is 76
    			-- (from WEL_VK_CONSTANTS)

    	vk_lbutton: INTEGER_32 is 1
    			-- Declared in Windows as VK_LBUTTON
    			-- (from WEL_VK_CONSTANTS)

    	vk_lcontrol: INTEGER_32 is 162
    			-- Declared in Windows as VK_LCONTROL
    			-- (from WEL_VK_CONSTANTS)

    	vk_left: INTEGER_32 is 37
    			-- Declared in Windows as VK_LEFT
    			-- (from WEL_VK_CONSTANTS)

    	vk_lmenu: INTEGER_32 is 164
    			-- Declared in Windows as VK_LMENU
    			-- (from WEL_VK_CONSTANTS)

    	vk_lshift: INTEGER_32 is 160
    			-- Declared in Windows as VK_LSHIFT
    			-- (from WEL_VK_CONSTANTS)

    	vk_m: INTEGER_32 is 77
    			-- (from WEL_VK_CONSTANTS)

    	vk_mbutton: INTEGER_32 is 4
    			-- Declared in Windows as VK_MBUTTON
    			-- (from WEL_VK_CONSTANTS)

    	vk_menu: INTEGER_32 is 18
    			-- Declared in Windows as VK_MENU
    			-- Was declared in WEL_VK_CONSTANTS as synonym of Vk_alt.
    			-- (from WEL_VK_CONSTANTS)

    	vk_multiply: INTEGER_32 is 106
    			-- Declared in Windows as VK_MULTIPLY
    			-- (from WEL_VK_CONSTANTS)

    	vk_n: INTEGER_32 is 78
    			-- (from WEL_VK_CONSTANTS)

    	vk_next: INTEGER_32 is 34
    			-- Declared in Windows as VK_NEXT
    			-- (from WEL_VK_CONSTANTS)

    	vk_numlock: INTEGER_32 is 144
    			-- Declared in Windows as VK_NUMLOCK
    			-- (from WEL_VK_CONSTANTS)

    	vk_numpad0: INTEGER_32 is 96
    			-- Declared in Windows as VK_NUMPAD0
    			-- (from WEL_VK_CONSTANTS)

    	vk_numpad1: INTEGER_32 is 97
    			-- Declared in Windows as VK_NUMPAD1
    			-- (from WEL_VK_CONSTANTS)

    	vk_numpad2: INTEGER_32 is 98
    			-- Declared in Windows as VK_NUMPAD2
    			-- (from WEL_VK_CONSTANTS)

    	vk_numpad3: INTEGER_32 is 99
    			-- Declared in Windows as VK_NUMPAD3
    			-- (from WEL_VK_CONSTANTS)

    	vk_numpad4: INTEGER_32 is 100
    			-- Declared in Windows as VK_NUMPAD4
    			-- (from WEL_VK_CONSTANTS)

    	vk_numpad5: INTEGER_32 is 101
    			-- Declared in Windows as VK_NUMPAD5
    			-- (from WEL_VK_CONSTANTS)

    	vk_numpad6: INTEGER_32 is 102
    			-- Declared in Windows as VK_NUMPAD6
    			-- (from WEL_VK_CONSTANTS)

    	vk_numpad7: INTEGER_32 is 103
    			-- Declared in Windows as VK_NUMPAD7
    			-- (from WEL_VK_CONSTANTS)

    	vk_numpad8: INTEGER_32 is 104
    			-- Declared in Windows as VK_NUMPAD8
    			-- (from WEL_VK_CONSTANTS)

    	vk_numpad9: INTEGER_32 is 105
    			-- Declared in Windows as VK_NUMPAD9
    			-- (from WEL_VK_CONSTANTS)

    	vk_o: INTEGER_32 is 79
    			-- (from WEL_VK_CONSTANTS)

    	vk_p: INTEGER_32 is 80
    			-- (from WEL_VK_CONSTANTS)

    	vk_pause: INTEGER_32 is 19
    			-- Declared in Windows as VK_PAUSE
    			-- (from WEL_VK_CONSTANTS)

    	vk_print: INTEGER_32 is 42
    			-- Declared in Windows as VK_PRINT
    			-- (from WEL_VK_CONSTANTS)

    	vk_prior: INTEGER_32 is 33
    			-- Declared in Windows as VK_PRIOR
    			-- (from WEL_VK_CONSTANTS)

    	vk_q: INTEGER_32 is 81
    			-- (from WEL_VK_CONSTANTS)

    	vk_r: INTEGER_32 is 82
    			-- (from WEL_VK_CONSTANTS)

    	vk_rbutton: INTEGER_32 is 2
    			-- Declared in Windows as VK_RBUTTON
    			-- (from WEL_VK_CONSTANTS)

    	vk_rcontrol: INTEGER_32 is 163
    			-- Declared in Windows as VK_RCONTROL
    			-- (from WEL_VK_CONSTANTS)

    	vk_return: INTEGER_32 is 13
    			-- Declared in Windows as VK_RETURN
    			-- (from WEL_VK_CONSTANTS)

    	vk_right: INTEGER_32 is 39
    			-- Declared in Windows as VK_RIGHT
    			-- (from WEL_VK_CONSTANTS)

    	vk_rmenu: INTEGER_32 is 165
    			-- Declared in Windows as VK_RMENU
    			-- (from WEL_VK_CONSTANTS)

    	vk_rshift: INTEGER_32 is 161
    			-- Declared in Windows as VK_RSHIFT
    			-- (from WEL_VK_CONSTANTS)

    	vk_s: INTEGER_32 is 83
    			-- (from WEL_VK_CONSTANTS)

    	vk_scroll: INTEGER_32 is 145
    			-- Declared in Windows as VK_SCROLL
    			-- (from WEL_VK_CONSTANTS)

    	vk_select: INTEGER_32 is 41
    			-- Declared in Windows as VK_SELECT
    			-- (from WEL_VK_CONSTANTS)

    	vk_separator: INTEGER_32 is 108
    			-- Declared in Windows as VK_SEPARATOR
    			-- (from WEL_VK_CONSTANTS)

    	vk_shift: INTEGER_32 is 16
    			-- Declared in Windows as VK_SHIFT
    			-- (from WEL_VK_CONSTANTS)

    	vk_snapshot: INTEGER_32 is 44
    			-- Declared in Windows as VK_SNAPSHOT
    			-- (from WEL_VK_CONSTANTS)

    	vk_space: INTEGER_32 is 32
    			-- Declared in Windows as VK_SPACE
    			-- (from WEL_VK_CONSTANTS)

    	vk_subtract: INTEGER_32 is 109
    			-- Declared in Windows as VK_SUBTRACT
    			-- (from WEL_VK_CONSTANTS)

    	vk_t: INTEGER_32 is 84
    			-- (from WEL_VK_CONSTANTS)

    	vk_tab: INTEGER_32 is 9
    			-- Declared in Windows as VK_TAB
    			-- (from WEL_VK_CONSTANTS)

    	vk_u: INTEGER_32 is 85
    			-- (from WEL_VK_CONSTANTS)

    	vk_up: INTEGER_32 is 38
    			-- Declared in Windows as VK_UP
    			-- (from WEL_VK_CONSTANTS)

    	vk_v: INTEGER_32 is 86
    			-- (from WEL_VK_CONSTANTS)

    	vk_w: INTEGER_32 is 87
    			-- (from WEL_VK_CONSTANTS)

    	vk_x: INTEGER_32 is 88
    			-- (from WEL_VK_CONSTANTS)

    	vk_y: INTEGER_32 is 89
    			-- (from WEL_VK_CONSTANTS)

    	vk_z: INTEGER_32 is 90
    			-- (from WEL_VK_CONSTANTS)

    feature -- Measurement

    	structure_size: INTEGER_32
    			-- Size to allocate (in bytes)
    			-- (from WEL_ACCELERATOR)
    		ensure -- from WEL_STRUCTURE
    			positive_result: Result > 0

    feature -- Comparison

    	frozen deep_equal (some: ANY; other: like arg #1): BOOLEAN
    			-- Are `some' and `other' either both void
    			-- or attached to isomorphic object structures?
    			-- (from ANY)
    		ensure -- from ANY
    			shallow_implies_deep: standard_equal (some, other) implies Result
    			both_or_none_void: (some = Void) implies (Result = (other = Void))
    			same_type: (Result and (some /= Void)) implies some.same_type (other)
    			symmetric: Result implies deep_equal (other, some)

    	frozen equal (some: ANY; other: like arg #1): BOOLEAN
    			-- Are `some' and `other' either both void or attached
    			-- to objects considered equal?
    			-- (from ANY)
    		ensure -- from ANY
    			definition: Result = (some = Void and other = Void) or else ((some /= Void and other /= Void) and then some.is_equal (other))

    	frozen standard_equal (some: ANY; other: like arg #1): BOOLEAN
    			-- Are `some' and `other' either both void or attached to
    			-- field-by-field identical objects of the same type?
    			-- Always uses default object comparison criterion.
    			-- (from ANY)
    		ensure -- from ANY
    			definition: Result = (some = Void and other = Void) or else ((some /= Void and other /= Void) and then some.standard_is_equal (other))

    	frozen standard_is_equal (other: like Current): BOOLEAN
    			-- Is `other' attached to an object of the same type
    			-- as current object, and field-by-field identical to it?
    			-- (from ANY)
    		require -- from ANY
    			other_not_void: other /= Void
    		ensure -- from ANY
    			same_type: Result implies same_type (other)
    			symmetric: Result implies other.standard_is_equal (Current)

    feature -- Status report

    	conforms_to (other: ANY): BOOLEAN
    			-- Does type of current object conform to type
    			-- of `other' (as per Eiffel: The Language, chapter 13)?
    			-- (from ANY)
    		require -- from ANY
    			other_not_void: other /= Void

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

    	same_type (other: ANY): BOOLEAN
    			-- Is type of current object identical to type of `other'?
    			-- (from ANY)
    		require -- from ANY
    			other_not_void: other /= Void
    		ensure -- from ANY
    			definition: Result = (conforms_to (other) and other.conforms_to (Current))

    	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

    	disable_alt_required
    			-- Remove "Alt" from the key combination of `Current'.

    	disable_control_required
    			-- Remove "Control" from the key combination of `Current'.

    	disable_shift_required
    			-- Remove "Shift" from the key combination of `Current'.

    	enable_alt_required
    			-- "Alt" must be pressed for the key combination.

    	enable_control_required
    			-- "Control" must be pressed for the key combination.

    	enable_shift_required
    			-- "Shift" must be pressed for the key combination.

    	set_command_id (a_command_id: INTEGER_32)
    			-- Set command_id to `a_command_id'.
    			-- (from WEL_ACCELERATOR)
    		require -- from WEL_ACCELERATOR
    			valid_command_id: a_command_id >= 0
    		ensure -- from WEL_ACCELERATOR
    			command_id_set: command_id = a_command_id

    	set_flags (a_flags: INTEGER_32)
    			-- Set flags to `a_flags'.
    			-- (from WEL_ACCELERATOR)
    		ensure -- from WEL_ACCELERATOR
    			flags_set: flags = a_flags

    	set_item (an_item: POINTER)
    			-- Set item with `an_item'
    			-- (from WEL_ANY)
    		ensure -- from WEL_ANY
    			item_set: item = an_item

    	set_key (a_key: EV_KEY)
    			-- Set `a_key_code' as new key that has to be pressed.

    	wel_set_key (a_key: INTEGER_32)
    			-- Set key to `a_key'.
    			-- (from WEL_ACCELERATOR)
    		ensure -- from WEL_ACCELERATOR
    			key_set: wel_key = a_key

    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

    	key_code_from_wel (a_wel_code: INTEGER_32): INTEGER_32
    			-- Corresponding key code for ``a_wel_code''.
    			-- (from EV_WEL_KEY_CONVERSION)
    		require -- from EV_WEL_KEY_CONVERSION
    			a_wel_code_valid: valid_wel_code (a_wel_code)

    	key_code_to_wel (a_key_code: INTEGER_32): INTEGER_32
    			-- Corresponding WEL code for ``a_key_code''.
    			-- (from EV_WEL_KEY_CONVERSION)
    		require -- from EV_WEL_KEY_CONVERSION
    			a_key_code_valid: valid_key_code (a_key_code)

    feature -- Duplication

    	frozen deep_copy (other: like Current)
    			-- Effect equivalent to that of:
    			--		copy (`other' . deep_twin)
    			-- (from ANY)
    		require -- from ANY
    			other_not_void: other /= Void
    		ensure -- from ANY
    			deep_equal: deep_equal (Current, other)

    	frozen deep_twin: like Current
    			-- New object structure recursively duplicated from Current.
    			-- (from ANY)
    		ensure -- from ANY
    			deep_equal: deep_equal (Current, Result)

    	frozen standard_copy (other: like Current)
    			-- Copy every field of `other' onto corresponding field
    			-- of current object.
    			-- (from ANY)
    		require -- from ANY
    			other_not_void: other /= Void
    			type_identity: same_type (other)
    		ensure -- from ANY
    			is_standard_equal: standard_is_equal (other)

    	frozen standard_twin: like Current
    			-- New object field-by-field identical to `other'.
    			-- Always uses default copying semantics.
    			-- (from ANY)
    		ensure -- from ANY
    			standard_twin_not_void: Result /= Void
    			equal: standard_equal (Result, Current)

    	frozen twin: like Current
    			-- New object equal to `Current'
    			-- twin calls copy; to change copying/twining semantics, redefine copy.
    			-- (from ANY)
    		ensure -- from ANY
    			twin_not_void: Result /= Void
    			is_equal: Result.is_equal (Current)

    feature -- Basic operations

    	copy (other: like Current)
    			-- Update current object using fields of object attached
    			-- to `other', so as to yield equal objects.
    			-- (from WEL_STRUCTURE)
    		require -- from ANY
    			other_not_void: other /= Void
    			type_identity: same_type (other)
    		ensure -- from ANY
    			is_equal: is_equal (other)

    	frozen default: like Current
    			-- Default value of object's type
    			-- (from ANY)

    	frozen default_pointer: POINTER
    			-- Default value of type `POINTER'
    			-- (Avoid the need to write `p'.default for
    			-- some `p' of type `POINTER'.)
    			-- (from ANY)

    	default_rescue
    			-- Process exception for routines with no Rescue clause.
    			-- (Default: do nothing.)
    			-- (from ANY)

    	frozen do_nothing
    			-- Execute a null action.
    			-- (from ANY)

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

    	initialize_with_character (a_character: CHARACTER_8)
    			-- Fill current with `a_character'.
    			-- (from WEL_STRUCTURE)
    		require -- from WEL_STRUCTURE
    			exists: exists

    	is_equal (other: like Current): BOOLEAN
    			-- Is `other' attached to an object considered
    			-- equal to current object?
    			-- (from WEL_STRUCTURE)
    		require -- from ANY
    			other_not_void: other /= Void
    		ensure -- from ANY
    			symmetric: Result implies other.is_equal (Current)
    			consistent: standard_is_equal (other) implies Result

    	memory_copy (source_pointer: POINTER; length: INTEGER_32)
    			-- 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

    feature -- Constants

    	key_0: INTEGER_32 is 1
    			-- (from EV_KEY_CONSTANTS)

    	key_1: INTEGER_32 is 2
    			-- (from EV_KEY_CONSTANTS)

    	key_2: INTEGER_32 is 3
    			-- (from EV_KEY_CONSTANTS)

    	key_3: INTEGER_32 is 4
    			-- (from EV_KEY_CONSTANTS)

    	key_4: INTEGER_32 is 5
    			-- (from EV_KEY_CONSTANTS)

    	key_5: INTEGER_32 is 6
    			-- (from EV_KEY_CONSTANTS)

    	key_6: INTEGER_32 is 7
    			-- (from EV_KEY_CONSTANTS)

    	key_7: INTEGER_32 is 8
    			-- (from EV_KEY_CONSTANTS)

    	key_8: INTEGER_32 is 9
    			-- (from EV_KEY_CONSTANTS)

    	key_9: INTEGER_32 is 10
    			-- (from EV_KEY_CONSTANTS)

    	key_a: INTEGER_32 is 68
    			-- (from EV_KEY_CONSTANTS)

    	key_alt: INTEGER_32 is 96
    			-- (from EV_KEY_CONSTANTS)

    	key_b: INTEGER_32 is 69
    			-- (from EV_KEY_CONSTANTS)

    	key_back_space: INTEGER_32 is 40
    			-- (from EV_KEY_CONSTANTS)

    	key_backquote: INTEGER_32 is 56
    			-- (from EV_KEY_CONSTANTS)

    	key_backslash: INTEGER_32 is 54
    			-- (from EV_KEY_CONSTANTS)

    	key_c: INTEGER_32 is 70
    			-- (from EV_KEY_CONSTANTS)

    	key_caps_lock: INTEGER_32 is 45
    			-- (from EV_KEY_CONSTANTS)

    	key_close_bracket: INTEGER_32 is 52
    			-- (from EV_KEY_CONSTANTS)

    	key_comma: INTEGER_32 is 47
    			-- (from EV_KEY_CONSTANTS)

    	key_ctrl: INTEGER_32 is 95
    			-- (from EV_KEY_CONSTANTS)

    	key_d: INTEGER_32 is 71
    			-- (from EV_KEY_CONSTANTS)

    	key_dash: INTEGER_32 is 57
    			-- (from EV_KEY_CONSTANTS)

    	key_delete: INTEGER_32 is 67
    			-- (from EV_KEY_CONSTANTS)

    	key_down: INTEGER_32 is 59
    			-- (from EV_KEY_CONSTANTS)

    	key_e: INTEGER_32 is 72
    			-- (from EV_KEY_CONSTANTS)

    	key_end: INTEGER_32 is 65
    			-- (from EV_KEY_CONSTANTS)

    	key_enter: INTEGER_32 is 41
    			-- (from EV_KEY_CONSTANTS)

    	key_equal: INTEGER_32 is 48
    			-- (from EV_KEY_CONSTANTS)

    	key_escape: INTEGER_32 is 42
    			-- (from EV_KEY_CONSTANTS)

    	key_f: INTEGER_32 is 73
    			-- (from EV_KEY_CONSTANTS)

    	key_f1: INTEGER_32 is 27
    			-- (from EV_KEY_CONSTANTS)

    	key_f10: INTEGER_32 is 36
    			-- (from EV_KEY_CONSTANTS)

    	key_f11: INTEGER_32 is 37
    			-- (from EV_KEY_CONSTANTS)

    	key_f12: INTEGER_32 is 38
    			-- (from EV_KEY_CONSTANTS)

    	key_f2: INTEGER_32 is 28
    			-- (from EV_KEY_CONSTANTS)

    	key_f3: INTEGER_32 is 29
    			-- (from EV_KEY_CONSTANTS)

    	key_f4: INTEGER_32 is 30
    			-- (from EV_KEY_CONSTANTS)

    	key_f5: INTEGER_32 is 31
    			-- (from EV_KEY_CONSTANTS)

    	key_f6: INTEGER_32 is 32
    			-- (from EV_KEY_CONSTANTS)

    	key_f7: INTEGER_32 is 33
    			-- (from EV_KEY_CONSTANTS)

    	key_f8: INTEGER_32 is 34
    			-- (from EV_KEY_CONSTANTS)

    	key_f9: INTEGER_32 is 35
    			-- (from EV_KEY_CONSTANTS)

    	key_g: INTEGER_32 is 74
    			-- (from EV_KEY_CONSTANTS)

    	key_h: INTEGER_32 is 75
    			-- (from EV_KEY_CONSTANTS)

    	key_home: INTEGER_32 is 64
    			-- (from EV_KEY_CONSTANTS)

    	key_i: INTEGER_32 is 76
    			-- (from EV_KEY_CONSTANTS)

    	key_insert: INTEGER_32 is 66
    			-- (from EV_KEY_CONSTANTS)

    	key_j: INTEGER_32 is 77
    			-- (from EV_KEY_CONSTANTS)

    	key_k: INTEGER_32 is 78
    			-- (from EV_KEY_CONSTANTS)

    	key_l: INTEGER_32 is 79
    			-- (from EV_KEY_CONSTANTS)

    	key_left: INTEGER_32 is 60
    			-- (from EV_KEY_CONSTANTS)

    	key_left_meta: INTEGER_32 is 97
    			-- (from EV_KEY_CONSTANTS)

    	key_m: INTEGER_32 is 80
    			-- (from EV_KEY_CONSTANTS)

    	key_menu: INTEGER_32 is 99
    			-- (from EV_KEY_CONSTANTS)

    	key_n: INTEGER_32 is 81
    			-- (from EV_KEY_CONSTANTS)

    	key_num_lock: INTEGER_32 is 24
    			-- (from EV_KEY_CONSTANTS)

    	key_numpad_0: INTEGER_32 is 11
    			-- (from EV_KEY_CONSTANTS)

    	key_numpad_1: INTEGER_32 is 12
    			-- (from EV_KEY_CONSTANTS)

    	key_numpad_2: INTEGER_32 is 13
    			-- (from EV_KEY_CONSTANTS)

    	key_numpad_3: INTEGER_32 is 14
    			-- (from EV_KEY_CONSTANTS)

    	key_numpad_4: INTEGER_32 is 15
    			-- (from EV_KEY_CONSTANTS)

    	key_numpad_5: INTEGER_32 is 16
    			-- (from EV_KEY_CONSTANTS)

    	key_numpad_6: INTEGER_32 is 17
    			-- (from EV_KEY_CONSTANTS)

    	key_numpad_7: INTEGER_32 is 18
    			-- (from EV_KEY_CONSTANTS)

    	key_numpad_8: INTEGER_32 is 19
    			-- (from EV_KEY_CONSTANTS)

    	key_numpad_9: INTEGER_32 is 20
    			-- (from EV_KEY_CONSTANTS)

    	key_numpad_add: INTEGER_32 is 21
    			-- (from EV_KEY_CONSTANTS)

    	key_numpad_decimal: INTEGER_32 is 26
    			-- (from EV_KEY_CONSTANTS)

    	key_numpad_divide: INTEGER_32 is 22
    			-- (from EV_KEY_CONSTANTS)

    	key_numpad_multiply: INTEGER_32 is 23
    			-- (from EV_KEY_CONSTANTS)

    	key_numpad_subtract: INTEGER_32 is 25
    			-- (from EV_KEY_CONSTANTS)

    	key_o: INTEGER_32 is 82
    			-- (from EV_KEY_CONSTANTS)

    	key_open_bracket: INTEGER_32 is 51
    			-- (from EV_KEY_CONSTANTS)

    	key_p: INTEGER_32 is 83
    			-- (from EV_KEY_CONSTANTS)

    	key_page_down: INTEGER_32 is 63
    			-- (from EV_KEY_CONSTANTS)

    	key_page_up: INTEGER_32 is 62
    			-- (from EV_KEY_CONSTANTS)

    	key_pause: INTEGER_32 is 44
    			-- (from EV_KEY_CONSTANTS)

    	key_period: INTEGER_32 is 49
    			-- (from EV_KEY_CONSTANTS)

    	key_q: INTEGER_32 is 84
    			-- (from EV_KEY_CONSTANTS)

    	key_quote: INTEGER_32 is 55
    			-- (from EV_KEY_CONSTANTS)

    	key_r: INTEGER_32 is 85
    			-- (from EV_KEY_CONSTANTS)

    	key_right: INTEGER_32 is 61
    			-- (from EV_KEY_CONSTANTS)

    	key_right_meta: INTEGER_32 is 98
    			-- (from EV_KEY_CONSTANTS)

    	key_s: INTEGER_32 is 86
    			-- (from EV_KEY_CONSTANTS)

    	key_scroll_lock: INTEGER_32 is 46
    			-- (from EV_KEY_CONSTANTS)

    	key_semicolon: INTEGER_32 is 50
    			-- (from EV_KEY_CONSTANTS)

    	key_shift: INTEGER_32 is 94
    			-- (from EV_KEY_CONSTANTS)

    	key_slash: INTEGER_32 is 53
    			-- (from EV_KEY_CONSTANTS)

    	key_space: INTEGER_32 is 39
    			-- (from EV_KEY_CONSTANTS)

    	key_t: INTEGER_32 is 87
    			-- (from EV_KEY_CONSTANTS)

    	key_tab: INTEGER_32 is 43
    			-- (from EV_KEY_CONSTANTS)

    	key_u: INTEGER_32 is 88
    			-- (from EV_KEY_CONSTANTS)

    	key_up: INTEGER_32 is 58
    			-- (from EV_KEY_CONSTANTS)

    	key_v: INTEGER_32 is 89
    			-- (from EV_KEY_CONSTANTS)

    	key_w: INTEGER_32 is 90
    			-- (from EV_KEY_CONSTANTS)

    	key_x: INTEGER_32 is 91
    			-- (from EV_KEY_CONSTANTS)

    	key_y: INTEGER_32 is 92
    			-- (from EV_KEY_CONSTANTS)

    	key_z: INTEGER_32 is 93
    			-- (from EV_KEY_CONSTANTS)

    feature -- Contract support

    	valid_key_code (a_code: INTEGER_32): BOOLEAN
    			-- Is ``a_code'' a valid key code?
    			-- (from EV_KEY_CONSTANTS)

    	valid_wel_code (a_wel_code: INTEGER_32): BOOLEAN
    			-- Is ``a_wel_code'' valid?
    			-- (from EV_WEL_KEY_CONVERSION)

    feature -- Events

    	actions: EV_NOTIFY_ACTION_SEQUENCE
    			-- Actions to be performed when key is pressed.
    			-- (from EV_ACCELERATOR_I)

    feature -- Output

    	io: STD_FILES
    			-- Handle to standard file setup
    			-- (from ANY)

    	out: STRING_8
    			-- New string containing terse printable representation
    			-- of current object
    			-- Was declared in ANY as synonym of tagged_out.
    			-- (from ANY)

    	print (some: ANY)
    			-- Write terse external representation of `some'
    			-- on standard output.
    			-- (from ANY)

    	frozen tagged_out: STRING_8
    			-- New string containing terse printable representation
    			-- of current object
    			-- Was declared in ANY as synonym of out.
    			-- (from ANY)

    feature -- Platform

    	operating_environment: OPERATING_ENVIRONMENT
    			-- Objects available from the operating system
    			-- (from ANY)

    invariant
    		-- from EV_ANY_I
    	interface_coupled: is_usable implies interface /= Void and then interface.implementation = Current
    	base_make_called: base_make_called

    		-- from ANY
    	reflexive_equality: standard_is_equal (Current)
    	reflexive_conformance: conforms_to (Current)

    		-- from WEL_ACCELERATOR
    	valid_command_id: command_id >= 0

    		-- from EV_ID_IMP
    	make_called: id > 0

    indexing
    	copyright: "Copyright (c) 1984-2006, Eiffel Software and others"
    	license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
    	source: "[
    		Eiffel Software
    		356 Storke Road, Goleta, CA 93117 USA
    		Telephone 805-685-1006, Fax 805-685-6869
    		Website http://www.eiffel.com
    		Customer support http://support.eiffel.com
    	]"

    end -- class EV_ACCELERATOR_IMP