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SPACE 2
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SPACE - Library 2 - Volume 1.iso
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utility
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252
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dskpcsrc
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clock.def
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1988-02-13
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DEFINITION MODULE Clock;
(* This module defines procedures used for manipulating the *)
(* Clock accessory. *)
IMPORT Text;
VAR TimerResolution : INTEGER;
(* Defines the minimum timer resolution needed for time events. *)
PROCEDURE Initialize ();
(* Initialize the clock upon system power-up *)
PROCEDURE DayPeriod () : BOOLEAN;
(* Return TRUE if the current time is between 8:00 am and *)
(* 4:59 pm inclusive, otherwise return FALSE. *)
PROCEDURE EveningPeriod () : BOOLEAN;
(* Return TRUE if the current time is between 5:00 pm and *)
(* 10:59 pm inclusive, otherwise return FALSE. *)
PROCEDURE NightPeriod () : BOOLEAN;
(* Return TRUE if the current time is between 11:00 pm and *)
(* 7:59 am inclusive, otherwise return FALSE. *)
PROCEDURE SetTime ();
(* Invoke a dialog box allowing the user to set the time. *)
PROCEDURE SetDate ();
(* Invoke a dialog box allowing the user to set the date. *)
PROCEDURE OwnsWindow ( WindowId : INTEGER ) : BOOLEAN;
(* Return TRUE if the clock owns the window specified by *)
(* "WindowId", or FALSE otherwise. *)
PROCEDURE DecodeTime ( Time : CARDINAL;
UseFormat : BOOLEAN;
VAR FormattedTime : ARRAY OF CHAR );
(* Convert "Time" from it's encoded representation into *)
(* the text string "FormattedTime". *)
PROCEDURE DecodeDate ( Date : CARDINAL;
UseFormat : BOOLEAN;
VAR FormattedDate : ARRAY OF CHAR );
(* Convert "Date" from it's encoded representation into *)
(* the text string "FormattedDate". *)
PROCEDURE EncodeTime ( VAR FormattedTime : ARRAY OF CHAR;
PM : BOOLEAN;
VAR Time : CARDINAL ) : BOOLEAN;
(* Convert "FormattedTime" from a text string into the encoded *)
(* representation "Time". *)
PROCEDURE EncodeDate ( VAR FormattedDate : ARRAY OF CHAR;
VAR Date : CARDINAL ) : BOOLEAN;
(* Convert "FormattedDate" from a text string into the encoded *)
(* representation "Date". *)
PROCEDURE Open;
(* Open the clock. If the clock is already opened, *)
(* then top the window belonging to the clock. *)
PROCEDURE Close;
(* Close the clock window. *)
PROCEDURE ProcessTimerEvent;
(* The time specified has elapsed, so process the event. *)
PROCEDURE ProcessMessageEvent ( VAR MsgBuffer : ARRAY OF INTEGER );
(* Process a message event not relating to a menu. *)
PROCEDURE ProcessButtonEvent ( MouseButton : INTEGER;
ModifierKey : INTEGER;
Clicks : INTEGER );
(* The mouse button has been pressed, so process the event. *)
PROCEDURE ProcessKeyboardEvent ( Key : INTEGER;
ModifierKey : INTEGER );
(* A key on the keyboard has been pressed, so process the event. *)
END Clock.