indexing
	description: "Eiffel Vision application. Mswindows implementation."
	legal: "See notice at end of class."
	status: "See notice at end of class."
	date: "$Date: 2006-08-10 15:30:30 -0700 (Thu, 10 Aug 2006) $"
	revision: "$Revision: 62404 $"

class interface
	EV_APPLICATION_IMP

create 
	make (an_interface: like interface)
			-- Create the application with `an_interface' 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

	accelerators: WEL_ACCELERATORS
			-- Application's accelerators
			-- May be redefined (in once) to associate accelerators.
			-- (from WEL_APPLICATION)

	alt_pressed: BOOLEAN
			-- Is alt key currently pressed?

	application: WEL_APPLICATION
			-- Current application
			-- (from WEL_APPLICATION_MAIN_WINDOW)

	application_main_window: WEL_COMPOSITE_WINDOW
			-- Application's main window
			-- (from WEL_APPLICATION_MAIN_WINDOW)

	captured_widget: EV_WIDGET
			-- Widget currently captured. Void if none.
			-- (from EV_APPLICATION_I)

	check_instruction: INTEGER_32 is 7
			-- Exception code for violated check
			-- (from EXCEP_CONST)

	class_invariant: INTEGER_32 is 6
			-- Exception code for violated class invariant
			-- (from EXCEP_CONST)

	clipboard: EV_CLIPBOARD
			-- Native platform clipboard access.
			-- (from EV_APPLICATION_I)

	com_exception: INTEGER_32 is 28
			-- Exception code for a COM error.
			-- (from EXCEP_CONST)

	contextual_help_accelerator: EV_ACCELERATOR
			-- Accelerator that enables contextual help mode
			-- (from EV_APPLICATION_I)

	create_on_deferred: INTEGER_32 is 17
			-- Create on deferred
			-- (from EXCEP_CONST)

	ctrl_pressed: BOOLEAN
			-- Is ctrl key currently pressed?

	default_show_command: INTEGER_32
			-- Default command used to show `main_window'.
			-- May be redefined to have a maximized window for
			-- instance.
			-- See class WEL_SW_CONSTANTS for values.
			-- (from WEL_APPLICATION)

	developer_exception: INTEGER_32 is 24
			-- Exception code for developer exception
			-- (from EXCEP_CONST)

	dollar_applied_to_melted_feature: INTEGER_32 is 26
			-- $ applied to melted feature
			-- (from EXCEP_CONST)

	eiffel_runtime_fatal_error: INTEGER_32 is 25
			-- Eiffel run-time fatal error
			-- (from EXCEP_CONST)

	eiffel_runtime_panic: INTEGER_32 is 13
			-- Eiffel run-time panic
			-- (from EXCEP_CONST)

	exception_in_signal_handler: INTEGER_32 is 20
			-- Exception in signal handler
			-- (from EXCEP_CONST)

	external_exception: INTEGER_32 is 18
			-- Exception code for operating system error
			-- which does not set the `errno' variable
			-- (Unix-specific)
			-- (from EXCEP_CONST)

	floating_point_exception: INTEGER_32 is 5
			-- Exception code for floating point exception
			-- (from EXCEP_CONST)

	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)

	help_accelerator: EV_ACCELERATOR
			-- Accelerator that displays contextual help
			-- (from EV_APPLICATION_I)

	help_engine: EV_HELP_ENGINE
			-- Object that handle contextual help display requests
			-- (from EV_APPLICATION_I)

	incorrect_inspect_value: INTEGER_32 is 9
			-- Exception code for inspect value which is not one
			-- of the inspect constants, if there is no Else_part
			-- (from EXCEP_CONST)

	io_exception: INTEGER_32 is 21
			-- Exception code for I/O error
			-- (from EXCEP_CONST)

	key_pressed (virtual_key: INTEGER_32): BOOLEAN
			-- Is `virtual_key' currently pressed?

	locked_window: EV_WINDOW
			-- Window currently locked. Void if no window
			-- is currently locked.
			--
			-- See `{EV_WINDOW}.lock_update' for more details
			-- (from EV_APPLICATION_I)

	loop_invariant: INTEGER_32 is 11
			-- Exception code for violated loop invariant
			-- (from EXCEP_CONST)

	loop_variant: INTEGER_32 is 10
			-- Exception code for non-decreased loop variant
			-- (from EXCEP_CONST)

	no_more_memory: INTEGER_32 is 2
			-- Exception code for failed memory allocation
			-- (from EXCEP_CONST)

	number_of_codes: INTEGER_32 is 29
			-- How many codes are there to represent exceptions?
			-- (from EXCEP_CONST)

	operating_system_exception: INTEGER_32 is 22
			-- Exception code for operating system error
			-- which sets the `errno' variable
			-- (Unix-specific)
			-- (from EXCEP_CONST)

	out_of_memory: INTEGER_32 is 15
			-- Out of memory (cannot be ignored)
			-- (from EXCEP_CONST)

	pnd_targets: HASH_TABLE [INTEGER_32, INTEGER_32]
			-- Global list of pick and drop target object ids.
			-- (from EV_APPLICATION_I)

	postcondition: INTEGER_32 is 4
			-- Exception code for violated postcondition
			-- (from EXCEP_CONST)

	precondition: INTEGER_32 is 3
			-- Exception code for violated precondition
			-- (from EXCEP_CONST)

	rescue_exception: INTEGER_32 is 14
			-- Exception code for exception in rescue clause
			-- (from EXCEP_CONST)

	resumption_failed: INTEGER_32 is 16
			-- Resumption failed (retry did not succeed)
			-- (from EXCEP_CONST)

	retrieve_exception: INTEGER_32 is 23
			-- Exception code for retrieval error
			-- may be raised by `retrieved' in `IO_MEDIUM'.
			-- (from EXCEP_CONST)

	routine_failure: INTEGER_32 is 8
			-- Exception code for failed routine
			-- (from EXCEP_CONST)

	runtime_check_exception: INTEGER_32 is 29
			-- Exception code for runtime check being violated.
			-- (from EXCEP_CONST)

	runtime_io_exception: INTEGER_32 is 27
			-- Exception code for I/O error raised by runtime functions
			-- such as store/retrieve, file access...
			-- (from EXCEP_CONST)

	shift_pressed: BOOLEAN
			-- Is shift key currently pressed?

	signal_exception: INTEGER_32 is 12
			-- Exception code for operating system signal
			-- (from EXCEP_CONST)

	valid_code (c: INTEGER_32): BOOLEAN
			-- Is `c' a valid code to represent some kind of exceptions?
			-- (from EXCEP_CONST)

	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)

	void_assigned_to_expanded: INTEGER_32 is 19
			-- Exception code for assignment of void value
			-- to expanded entity
			-- (from EXCEP_CONST)

	void_call_target: INTEGER_32 is 1
			-- Exception code for feature applied to void reference
			-- (from EXCEP_CONST)
	
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))

	is_equal (other: like Current): BOOLEAN
			-- Is `other' attached to an object considered
			-- equal to current object?
			-- (from ANY)
		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

	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

	assertion_violation: BOOLEAN
			-- Is last exception originally due to a violated
			-- assertion or non-decreasing variant?
			-- (from EXCEPTIONS)

	class_name: STRING_8
			-- Name of the class that includes the recipient
			-- of original form of last exception
			-- (from EXCEPTIONS)

	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

	developer_exception_name: STRING_8
			-- Name of last developer-raised exception
			-- (from EXCEPTIONS)
		require -- from EXCEPTIONS
			applicable: is_developer_exception

	exception: INTEGER_32
			-- Code of last exception that occurred
			-- (from EXCEPTIONS)

	exception_trace: STRING_8
			-- String representation of the exception trace
			-- (from EXCEPTIONS)

	focused_widget: EV_WIDGET
			-- Widget with keyboard focus
			-- (from EV_APPLICATION_I)

	idle_action_enabled: BOOLEAN
			-- Is the idle action enabled?
			-- (False by default)
			-- (from WEL_APPLICATION)

	is_application_main_window (window: WEL_COMPOSITE_WINDOW): BOOLEAN
			-- Is `window' the application's main window?
			-- (from WEL_APPLICATION_MAIN_WINDOW)
		require -- from WEL_APPLICATION_MAIN_WINDOW
			window_not_void: window /= Void
		ensure -- from WEL_APPLICATION_MAIN_WINDOW
			Result = (window = application_main_window)

	is_developer_exception: BOOLEAN
			-- Is the last exception originally due to
			-- a developer exception?
			-- (from EXCEPTIONS)

	is_developer_exception_of_name (name: STRING_8): BOOLEAN
			-- Is the last exception originally due to a developer
			-- exception of name `name'?
			-- (from EXCEPTIONS)

	is_dialog (hwnd: POINTER): BOOLEAN
			-- Is the window corresponding to `hwnd' a dialog box?
			-- We call the function with a dialog box option,
			-- if it is indeed a dialog, the result will always
			-- be non zero, otherwise it is zero.
			-- (from WEL_APPLICATION)

	is_signal: BOOLEAN
			-- Is last exception originally due to an external
			-- event (operating system signal)?
			-- (from EXCEPTIONS)

	is_system_exception: BOOLEAN
			-- Is last exception originally due to an
			-- external event (operating system error)?
			-- (from EXCEPTIONS)

	meaning (except: INTEGER_32): STRING_8
			-- A message in English describing what `except' is
			-- (from EXCEPTIONS)

	original_class_name: STRING_8
			-- Name of the class that includes the recipient
			-- of original form of last exception
			-- (from EXCEPTIONS)

	original_exception: INTEGER_32
			-- Original code of last exception that triggered
			-- current exception
			-- (from EXCEPTIONS)

	original_recipient_name: STRING_8
			-- Name of the routine whose execution was
			-- interrupted by original form of last exception
			-- (from EXCEPTIONS)

	original_tag_name: STRING_8
			-- Assertion tag for original form of last
			-- assertion violation.
			-- (from EXCEPTIONS)

	recipient_name: STRING_8
			-- Name of the routine whose execution was
			-- interrupted by last exception
			-- (from EXCEPTIONS)

	runable: BOOLEAN
			-- Can the application be run?
			-- (True by default)
			-- The user may want to return False if the application
			-- cannot be executed for any reason.
			-- (from WEL_APPLICATION)

	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))

	tag_name: STRING_8
			-- Tag of last violated assertion clause
			-- (from EXCEPTIONS)
	
feature -- Status setting

	catch (code: INTEGER_32)
			-- Make sure that any exception of code `code' will be
			-- caught. This is the default.
			-- (from EXCEPTIONS)

	die (code: INTEGER_32)
			-- Terminate execution with exit status `code',
			-- without triggering an exception.
			-- (from EXCEPTIONS)

	disable_idle_action
			-- Disable the call to idle_action when the message
			-- queue is empty.
			-- (from WEL_APPLICATION)
		ensure -- from WEL_APPLICATION
			idle_action_disabled: not idle_action_enabled

	enable_idle_action
			-- Enable the call to idle_action when the message
			-- queue is empty.
			-- (from WEL_APPLICATION)
		ensure -- from WEL_APPLICATION
			idle_action_enabled: idle_action_enabled

	ignore (code: INTEGER_32)
			-- Make sure that any exception of code `code' will be
			-- ignored. This is not the default.
			-- (from EXCEPTIONS)

	message_on_failure
			-- Print an exception history table
			-- in case of failure.
			-- This is the default.
			-- (from EXCEPTIONS)

	no_message_on_failure
			-- Do not print an exception history table
			-- in case of failure.
			-- (from EXCEPTIONS)

	raise (name: STRING_8)
			-- Raise a developer exception of name `name'.
			-- (from EXCEPTIONS)

	raise_retrieval_exception (name: STRING_8)
			-- Raise a retrieval exception of name `name'.
			-- (from EXCEPTIONS)

	set_capture_type (a_capture_type: INTEGER_32)
			-- Set the type of capture to use when capturing the
			-- mouse to `a_capture_type'.
			-- See constants Capture_xxxx at the end of the class
		require
			valid_capture_type: a_capture_type = capture_normal or a_capture_type = capture_heavy
		ensure
			valid_capture: capture_type = capture_normal or capture_type = capture_heavy

	set_tooltip_delay (a_delay: INTEGER_32)
			-- Assign `a_delay' to tooltip_delay.
		require -- from EV_APPLICATION_I
			a_delay_non_negative: a_delay >= 0
		ensure -- from EV_APPLICATION_I
			assigned: tooltip_delay = a_delay
	
feature -- Element change

	add_root_window (w: WEL_FRAME_WINDOW)
			-- Add `w' to the list of root windows.

	remove_root_window (w: WEL_FRAME_WINDOW)
			-- Remove `w' from the root windows list.

	set_window_with_focus (a_window: EV_WINDOW)
			-- Assign implementation of `a_window' to window_with_focus.

	window_with_focus: EV_WINDOW_IMP
			-- `Result' is EV_WINDOW with current focus.
	
feature -- Duplication

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

	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

	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)

	idle_action
			-- Called when the message queue is empty.
			-- Useful to perform background operations.
			-- (from WEL_APPLICATION)
		require -- from WEL_APPLICATION
			idle_action_enabled: idle_action_enabled

	run
			-- Create `main_window' and start the message loop.
			-- (from WEL_APPLICATION)
		require -- from WEL_APPLICATION
			runable: runable
			main_window_not_void: application_main_window /= Void
			parent_main_window_is_void: application_main_window.parent = Void
	
feature -- Implementation

	call_idle_actions
			-- Call idle actions.
			-- (from EV_APPLICATION_I)

	call_post_launch_actions
			-- Call the post launch actions.
			-- (from EV_APPLICATION_I)

	exception_dialog: EV_DIALOG
			-- Dialog used for showing uncaught exceptions.
			-- (from EV_APPLICATION_I)

	interface: EV_APPLICATION
			-- Provides a common user interface to platform dependent
			-- functionality implemented by `Current'
			-- (from EV_APPLICATION_I)

	new_exception: EXCEPTION
			-- New exception object representating the last exception caught in Current
			-- (from EV_APPLICATION_I)
		ensure -- from EV_APPLICATION_I
			new_exception_not_void: Result /= Void

	on_exception_action (an_exception: EXCEPTION)
			-- Call exception actions.
			-- (from EV_APPLICATION_I)
		require -- from EV_APPLICATION_I
			an_exception_not_void: an_exception /= Void

	show_exception_dialog: BOOLEAN is True
			-- Should the exception dialog be shown by default?
			-- (from EV_APPLICATION_I)

	uncaught_exception_actions_called: BOOLEAN
			-- Are the `uncaught_exceptions_actions' currently being called?
			-- This is used to prevent infinite looping should an exception be raised as part of calling uncaught_exception_actions.
			-- (from EV_APPLICATION_I)
	
feature 

	pointer_motion_actions: ACTION_SEQUENCE [TUPLE [EV_WIDGET, INTEGER_32, INTEGER_32]]
			-- Actions to be performed when screen pointer moves.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_I)
		ensure -- from EV_APPLICATION_ACTION_SEQUENCES_I
			not_void: Result /= Void
	
feature -- Basic operation

	add_idle_action (a_idle_action: PROCEDURE [ANY, TUPLE])
			-- Extend idle_actions with `a_idle_action'.
			-- Thread safe
			-- (from EV_APPLICATION_I)
		require -- from EV_APPLICATION_I
			a_idle_action_not_void: a_idle_action /= Void

	destroy
			-- Destroy `Current' (End the application).
		ensure -- from EV_ANY_I
			is_in_destroy_set: is_in_destroy
			is_destroyed_set: is_destroyed

	display_help_for_widget (a_widget: EV_WIDGET)
			-- Display contextual help for `a_widget', if any.
			-- (from EV_APPLICATION_I)
		require -- from EV_APPLICATION_I
			a_widget_not_void: a_widget /= Void

	enable_contextual_help
			-- Change mouse cursor to help cursor
			-- Capture mouse input
			-- Send help context of widget under mouse cursor when left mouse button is pressed to help engine.
			-- Cancel contextual help mode when right mouse button is pressed.
			-- (from EV_APPLICATION_I)

	lock
			-- Lock the Mutex.

	process_events
			-- Process any pending events.

	process_graphical_events
			-- Process any pending paint messages.

	relinquish_cpu_slice
			-- Give timeslice back to kernel so as to not take all CPU.
			-- (from EV_APPLICATION_I)

	remove_idle_action (a_idle_action: PROCEDURE [ANY, TUPLE])
			-- Remove `a_idle_action' from idle_actions
			-- Thread safe
			-- (from EV_APPLICATION_I)
		require -- from EV_APPLICATION_I
			a_idle_action_not_void: a_idle_action /= Void

	sleep (msec: INTEGER_32)
			-- Wait for `msec' milliseconds and return.
		require -- from EV_APPLICATION_I
			msec_non_negative: msec >= 0

	try_lock: BOOLEAN
			-- Try to see if we can lock, False means no lock could be attained

	unlock
			-- Unlock the Mutex.
	
feature -- Element Change

	set_captured_widget (a_captured_widget: EV_WIDGET)
			-- Set captured_widget to the widget that has the current capture 'a_capture_widget'.
			-- (from EV_APPLICATION_I)
		ensure -- from EV_APPLICATION_I
			captured_widget_set: captured_widget = a_captured_widget

	set_contextual_help_accelerator (an_accelerator: EV_ACCELERATOR)
			-- Assign `an_accelerator' to contextual_help_accelerator
			-- (from EV_APPLICATION_I)
		require -- from EV_APPLICATION_I
			an_accelerator_not_void: an_accelerator /= Void
		ensure -- from EV_APPLICATION_I
			contextual_help_accelerator_assigned: contextual_help_accelerator = an_accelerator
			contextual_help_accelerator_complete: contextual_help_accelerator.actions.has (contextual_help_handler_procedure)

	set_help_accelerator (an_accelerator: EV_ACCELERATOR)
			-- Assign `an_accelerator' to help_accelerator
			-- (from EV_APPLICATION_I)
		require -- from EV_APPLICATION_I
			an_accelerator_not_void: an_accelerator /= Void
		ensure -- from EV_APPLICATION_I
			help_accelerator_assigned: help_accelerator = an_accelerator
			help_accelerator_complete: help_accelerator.actions.has (help_handler_procedure)

	set_help_engine (an_engine: EV_HELP_ENGINE)
			-- Assign `an_engine' to help_engine
			-- (from EV_APPLICATION_I)
		require -- from EV_APPLICATION_I
			an_engine_not_void: an_engine /= Void
		ensure -- from EV_APPLICATION_I
			help_engine_set: help_engine = an_engine

	set_locked_window (a_window: EV_WINDOW)
			-- Set locked_window to `a_window'.
			--
			-- See `{EV_WINDOW}.lock_update' for more details
			-- (from EV_APPLICATION_I)
	
feature -- Event handling

	accelerator_actions (an_accelerator: EV_ACCELERATOR): EV_NOTIFY_ACTION_SEQUENCE
			-- Actions to be performed when `an_accelerator' key sequence is
			-- pressed.
			-- (from EV_APPLICATION_I)
		ensure -- from EV_APPLICATION_I
			not_void: Result /= Void

	cancel_actions: EV_PND_ACTION_SEQUENCE
			-- Actions to be performed when a PND is cancelled
			-- (from EV_APPLICATION_ACTION_SEQUENCES_I)
		ensure -- from EV_APPLICATION_ACTION_SEQUENCES_I
			not_void: Result /= Void

	create_cancel_actions: EV_PND_ACTION_SEQUENCE
			-- Create a cancel action sequence.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_IMP)
		require -- from  EV_APPLICATION_ACTION_SEQUENCES_I
			True

	create_destroy_actions: EV_NOTIFY_ACTION_SEQUENCE
			-- Create a destory action sequence.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_IMP)
		require -- from  EV_APPLICATION_ACTION_SEQUENCES_I
			True

	create_drop_actions: EV_PND_ACTION_SEQUENCE
			-- Create a drop action sequence.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_IMP)
		require -- from  EV_APPLICATION_ACTION_SEQUENCES_I
			True

	create_focus_in_actions: ACTION_SEQUENCE [TUPLE [EV_WIDGET]]
			-- Create a focus_in action sequence.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_IMP)
		require -- from  EV_APPLICATION_ACTION_SEQUENCES_I
			True

	create_focus_out_actions: ACTION_SEQUENCE [TUPLE [EV_WIDGET]]
			-- Create a focus_out action sequence.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_IMP)
		require -- from  EV_APPLICATION_ACTION_SEQUENCES_I
			True

	create_idle_actions: EV_NOTIFY_ACTION_SEQUENCE
			-- Create a idle action sequence.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_IMP)
		require -- from  EV_APPLICATION_ACTION_SEQUENCES_I
			True

	create_key_press_actions: ACTION_SEQUENCE [TUPLE [EV_WIDGET, EV_KEY]]
			-- Create a key_press action sequence.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_IMP)
		require -- from  EV_APPLICATION_ACTION_SEQUENCES_I
			True

	create_key_press_string_actions: ACTION_SEQUENCE [TUPLE [EV_WIDGET, STRING_32]]
			-- Create a key_press_string action sequence.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_IMP)
		require -- from  EV_APPLICATION_ACTION_SEQUENCES_I
			True

	create_key_release_actions: ACTION_SEQUENCE [TUPLE [EV_WIDGET, EV_KEY]]
			-- Create a key_release action sequence.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_IMP)
		require -- from  EV_APPLICATION_ACTION_SEQUENCES_I
			True

	create_mouse_wheel_actions: ACTION_SEQUENCE [TUPLE [EV_WIDGET, INTEGER_32]]
			-- Create a mouse_wheel action sequence.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_IMP)
		require -- from  EV_APPLICATION_ACTION_SEQUENCES_I
			True

	create_pick_actions: EV_PND_ACTION_SEQUENCE
			-- Create a pick action sequence.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_IMP)
		require -- from  EV_APPLICATION_ACTION_SEQUENCES_I
			True

	create_pnd_motion_actions: EV_PND_MOTION_ACTION_SEQUENCE
			-- Create a pnd motion action sequence.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_IMP)
		require -- from  EV_APPLICATION_ACTION_SEQUENCES_I
			True

	create_pointer_button_press_actions: ACTION_SEQUENCE [TUPLE [EV_WIDGET, INTEGER_32, INTEGER_32, INTEGER_32]]
			-- Create a pointer_button_press action sequence.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_IMP)
		require -- from  EV_APPLICATION_ACTION_SEQUENCES_I
			True

	create_pointer_button_release_actions: ACTION_SEQUENCE [TUPLE [EV_WIDGET, INTEGER_32, INTEGER_32, INTEGER_32]]
			-- Create a pointer_button_release action sequence.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_IMP)
		require -- from  EV_APPLICATION_ACTION_SEQUENCES_I
			True

	create_pointer_double_press_actions: ACTION_SEQUENCE [TUPLE [EV_WIDGET, INTEGER_32, INTEGER_32, INTEGER_32]]
			-- Create a pointer_double_press action sequence.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_IMP)
		require -- from  EV_APPLICATION_ACTION_SEQUENCES_I
			True

	create_pointer_motion_actions: ACTION_SEQUENCE [TUPLE [EV_WIDGET, INTEGER_32, INTEGER_32]]
			-- Create a pointer_motion action sequence.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_IMP)
		require -- from  EV_APPLICATION_ACTION_SEQUENCES_I
			True

	create_post_launch_actions: EV_NOTIFY_ACTION_SEQUENCE
			-- Create a post_launch action sequence.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_IMP)
		require -- from  EV_APPLICATION_ACTION_SEQUENCES_I
			True

	create_theme_changed_actions: EV_NOTIFY_ACTION_SEQUENCE
			-- Create a theme_changed action sequence.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_IMP)
		require -- from  EV_APPLICATION_ACTION_SEQUENCES_I
			True

	destroy_actions: EV_NOTIFY_ACTION_SEQUENCE
			-- Actions to be performed when current application is destroying.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_I)

	drop_actions: EV_PND_ACTION_SEQUENCE
			-- Actions to be performed when any "drop" occurs.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_I)
		ensure -- from EV_APPLICATION_ACTION_SEQUENCES_I
			not_void: Result /= Void

	focus_in_actions: ACTION_SEQUENCE [TUPLE [EV_WIDGET]]
			-- Actions to be performed when getting focus.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_I)
		ensure -- from EV_APPLICATION_ACTION_SEQUENCES_I
			not_void: Result /= Void

	focus_out_actions: ACTION_SEQUENCE [TUPLE [EV_WIDGET]]
			-- Actions to be performed when losing focus.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_I)
		ensure -- from EV_APPLICATION_ACTION_SEQUENCES_I
			not_void: Result /= Void

	idle_actions: EV_NOTIFY_ACTION_SEQUENCE
			-- Actions to be performed when the application is otherwise idle.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_I)
		ensure -- from EV_APPLICATION_ACTION_SEQUENCES_I
			not_void: Result /= Void

	key_press_actions: ACTION_SEQUENCE [TUPLE [EV_WIDGET, EV_KEY]]
			-- Actions to be performed when a keyboard key is pressed.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_I)
		ensure -- from EV_APPLICATION_ACTION_SEQUENCES_I
			not_void: Result /= Void

	key_press_string_actions: ACTION_SEQUENCE [TUPLE [EV_WIDGET, STRING_32]]
			-- Actions to be performed when a keyboard press generates a displayable character.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_I)
		ensure -- from EV_APPLICATION_ACTION_SEQUENCES_I
			not_void: Result /= Void

	key_release_actions: ACTION_SEQUENCE [TUPLE [EV_WIDGET, EV_KEY]]
			-- Actions to be performed when a keyboard key is released.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_I)
		ensure -- from EV_APPLICATION_ACTION_SEQUENCES_I
			not_void: Result /= Void

	mouse_wheel_actions: ACTION_SEQUENCE [TUPLE [EV_WIDGET, INTEGER_32]]
			-- Actions to be performed when mouse wheel is rotated.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_I)
		ensure -- from EV_APPLICATION_ACTION_SEQUENCES_I
			not_void: Result /= Void

	pick_actions: EV_PND_ACTION_SEQUENCE
			-- Actions to be performed when any "pick" occurs.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_I)
		ensure -- from EV_APPLICATION_ACTION_SEQUENCES_I
			not_void: Result /= Void

	pnd_motion_actions: EV_PND_MOTION_ACTION_SEQUENCE
			-- Actions to be performed when screen pointer is moved,
			-- during a pick and drop.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_I)
		ensure -- from EV_APPLICATION_ACTION_SEQUENCES_I
			not_void: Result /= Void

	pointer_button_press_actions: ACTION_SEQUENCE [TUPLE [EV_WIDGET, INTEGER_32, INTEGER_32, INTEGER_32]]
			-- Actions to be performed when screen pointer button is pressed.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_I)
		ensure -- from EV_APPLICATION_ACTION_SEQUENCES_I
			not_void: Result /= Void

	pointer_button_release_actions: ACTION_SEQUENCE [TUPLE [EV_WIDGET, INTEGER_32, INTEGER_32, INTEGER_32]]
			-- Actions to be performed when screen pointer button is released.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_I)
		ensure -- from EV_APPLICATION_ACTION_SEQUENCES_I
			not_void: Result /= Void

	pointer_double_press_actions: ACTION_SEQUENCE [TUPLE [EV_WIDGET, INTEGER_32, INTEGER_32, INTEGER_32]]
			-- Actions to be performed when screen pointer is double clicked.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_I)
		ensure -- from EV_APPLICATION_ACTION_SEQUENCES_I
			not_void: Result /= Void

	post_launch_actions: EV_NOTIFY_ACTION_SEQUENCE
			-- Actions to be performed just after application launch.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_I)
		ensure -- from EV_APPLICATION_ACTION_SEQUENCES_I
			not_void: Result /= Void

	theme_changed_actions: EV_NOTIFY_ACTION_SEQUENCE
			-- Actions to be performed when operating system theme changed.
			-- (from EV_APPLICATION_ACTION_SEQUENCES_I)

	uncaught_exception_actions: ACTION_SEQUENCE [TUPLE [EXCEPTION]]
			-- Actions to be performed when an
			-- action sequence called via callback
			-- from the underlying toolkit raises an
			-- exception that is not caught
			-- (from EV_APPLICATION_ACTION_SEQUENCES_I)
		ensure -- from EV_APPLICATION_ACTION_SEQUENCES_I
			not_void: Result /= Void
	
feature -- Events

	do_once_idle_actions
			-- Call once_idle_actions then wipe it out.
			-- Remove do_once_idle_actions_agent from internal_idle_actions.
			-- (from EV_APPLICATION_I)

	do_once_idle_actions_agent: PROCEDURE [EV_APPLICATION_I, TUPLE]
			-- Agent for do_once_idle_actions.
			-- (from EV_APPLICATION_I)

	do_once_on_idle (an_action: PROCEDURE [ANY, TUPLE])
			-- Perform `an_action' one time only on idle.
			-- (from EV_APPLICATION_I)

	internal_idle_actions: EV_NOTIFY_ACTION_SEQUENCE
			-- Actions to be performed when no events are in queue.
			-- (from EV_APPLICATION_I)

	once_idle_actions: EV_NOTIFY_ACTION_SEQUENCE
			-- Actions to be preformed once when no events are in queue.
			-- Wiped out after being called.
			-- (from EV_APPLICATION_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)
	
feature -- Public constants

	capture_heavy: INTEGER_32 is 1
			-- The mouse [has been/should be] captured through
			-- a call to `set_heavy_capture'

	capture_normal: INTEGER_32 is 0
			-- The mouse [has been/should be] captured through
			-- a call to `set_capture'
			--
			-- Default value.
	
feature -- Root window

	silly_main_window: EV_INTERNAL_SILLY_WINDOW_IMP
			-- Current main window of the application.
		ensure -- from WEL_APPLICATION
			result_not_void: Result /= Void
			parent_main_window_is_void: Result.parent = Void
	
feature -- Status reports

	capture_type: INTEGER_32
			-- Type of capture to use when capturing the mouse.
			-- See constants Capture_xxxx at the end of the class.
		ensure
			valid_result: Result = capture_normal or Result = capture_heavy
	
feature -- Tooltips

	internal_tooltip: WEL_TOOLTIP
			-- WEL_TOOLTIP used internally by current.
		ensure
			internal_tooltip_not_void: Result /= Void
	
invariant
	idle_action_mutex_valid: {PLATFORM}.is_thread_capable implies idle_action_mutex /= Void
	duplicated_message_not_void: duplicated_message /= Void

		-- from EV_APPLICATION_I
	dockable_targets_not_void: is_usable implies dockable_targets /= Void
	pnd_targets_not_void: is_usable implies pnd_targets /= Void
	windows_not_void: is_usable implies windows /= Void
	internal_idle_actions_not_void: is_usable implies internal_idle_actions /= Void
	once_idle_actions_not_void: is_usable implies once_idle_actions /= Void
	do_once_idle_actions_agent: is_usable implies do_once_idle_actions_agent /= Void

		-- 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)

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_APPLICATION_IMP