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			248 lines
		
	
	
		
			8.9 KiB
		
	
	
	
		
			TeX
		
	
	
	
	
	
			
		
		
	
	
			248 lines
		
	
	
		
			8.9 KiB
		
	
	
	
		
			TeX
		
	
	
	
	
	
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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| %% Name:        datetime.tex
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| %% Purpose:     wxDateTime documentation
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| %% Author:      Vadim Zeitlin
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| %% Modified by:
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| %% Created:     07.03.00
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| %% RCS-ID:      $Id$
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| %% Copyright:   (c) Vadim Zeitlin
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| %% Licence:     wxWindows licence
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| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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| 
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| \section{\class{wxDateTime}}\label{wxdatetime}
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| 
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| wxDateTime class represents an absolute moment in the time.
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| 
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| \wxheading{Types}
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| 
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| The type {\tt wxDateTime\_t} is typedefed as {\tt unsigned short} and is used
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| to contain the number of years, hours, minutes, seconds and milliseconds.
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| 
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| \wxheading{Constants}
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| 
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| Global constant {\tt wxDefaultDateTime} and synonym for it {\tt wxInvalidDateTime} are defined. This constant will be different from any valid
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| wxDateTime object.
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| 
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| All the following constants are defined inside wxDateTime class (i.e., to refer to
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| them you should prepend their names with {\tt wxDateTime::}).
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| 
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| Time zone symbolic names:%\label{wxdatetimetimezones} % Sorry, labels not allowed here.
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| 
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| 
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| \begin{verbatim}
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|     enum TZ
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|     {
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|         // the time in the current time zone
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|         Local,
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| 
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|         // zones from GMT (= Greenwhich Mean Time): they're guaranteed to be
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|         // consequent numbers, so writing something like `GMT0 + offset' is
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|         // safe if abs(offset) <= 12
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| 
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|         // underscore stands for minus
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|         GMT_12, GMT_11, GMT_10, GMT_9, GMT_8, GMT_7,
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|         GMT_6, GMT_5, GMT_4, GMT_3, GMT_2, GMT_1,
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|         GMT0,
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|         GMT1, GMT2, GMT3, GMT4, GMT5, GMT6,
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|         GMT7, GMT8, GMT9, GMT10, GMT11, GMT12,
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|         // Note that GMT12 and GMT_12 are not the same: there is a difference
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|         // of exactly one day between them
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| 
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|         // some symbolic names for TZ
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| 
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|         // Europe
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|         WET = GMT0,                         // Western Europe Time
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|         WEST = GMT1,                        // Western Europe Summer Time
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|         CET = GMT1,                         // Central Europe Time
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|         CEST = GMT2,                        // Central Europe Summer Time
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|         EET = GMT2,                         // Eastern Europe Time
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|         EEST = GMT3,                        // Eastern Europe Summer Time
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|         MSK = GMT3,                         // Moscow Time
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|         MSD = GMT4,                         // Moscow Summer Time
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| 
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|         // US and Canada
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|         AST = GMT_4,                        // Atlantic Standard Time
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|         ADT = GMT_3,                        // Atlantic Daylight Time
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|         EST = GMT_5,                        // Eastern Standard Time
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|         EDT = GMT_4,                        // Eastern Daylight Saving Time
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|         CST = GMT_6,                        // Central Standard Time
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|         CDT = GMT_5,                        // Central Daylight Saving Time
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|         MST = GMT_7,                        // Mountain Standard Time
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|         MDT = GMT_6,                        // Mountain Daylight Saving Time
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|         PST = GMT_8,                        // Pacific Standard Time
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|         PDT = GMT_7,                        // Pacific Daylight Saving Time
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|         HST = GMT_10,                       // Hawaiian Standard Time
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|         AKST = GMT_9,                       // Alaska Standard Time
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|         AKDT = GMT_8,                       // Alaska Daylight Saving Time
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| 
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|         // Australia
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| 
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|         A_WST = GMT8,                       // Western Standard Time
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|         A_CST = GMT12 + 1,                  // Central Standard Time (+9.5)
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|         A_EST = GMT10,                      // Eastern Standard Time
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|         A_ESST = GMT11,                     // Eastern Summer Time
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| 
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|         // Universal Coordinated Time = the new and politically correct name
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|         // for GMT
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|         UTC = GMT0
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|     };
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| \end{verbatim}
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| 
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| Month names: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec and
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| Inv\_Month for an invalid.month value are the values of {\tt wxDateTime::Month} 
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| enum.
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| 
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| Likely, Sun, Mon, Tue, Wed, Thu, Fri, Sat, and Inv\_WeekDay are the values in 
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| {\tt wxDateTime::WeekDay} enum.
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| 
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| Finally, Inv\_Year is defined to be an invalid value for year parameter.
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| 
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| \wxheading{Derived from}
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| 
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| No base class
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| 
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| \wxheading{Include files}
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| 
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| <wx/datetime.h>
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| 
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| \wxheading{See also}
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| 
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| %\helpref{Date classes overview}{wxdatetimeoverview},\rtfsp
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| wxTimeSpan,\rtfsp
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| wxDateSpan,\rtfsp
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| \helpref{wxCalendarCtrl}{wxcalendarctrl}
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| 
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| \latexignore{\rtfignore{\wxheading{Function groups}}}
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| 
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| \membersection{Static functions}
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| 
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| For convinience, all static functions are collected here. These functions
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| either set or return the static variables of wxDateSpan (the country), return
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| the current moment, year, month or number of days in it, or do some general
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| calendar-related actions.
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| 
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| \helpref{SetCountry}{wxdatetimesetcountry}\\
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| \helpref{GetCountry}{wxdatetimegetcountry}\\
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| \helpref{IsWestEuropeanCountry}{wxdatetimeiswesteuropeancountry}\\
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| \helpref{GetCurrentYear}{wxdatetimegetcurrentyear}\\
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| \helpref{ConvertYearToBC}{wxdatetimeconvertyeartobc}\\
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| \helpref{GetCurrentMonth}{wxdatetimegetcurrentmonth}\\
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| \helpref{IsLeapYear}{wxdatetimeisleapyear}\\
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| \helpref{GetCentury}{wxdatetimegetcentury}\\
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| \helpref{GetNumberOfDays}{wxdatetimegetnumberofdays}\\
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| \helpref{GetNumberOfDays}{wxdatetimegetnumberofdays}\\
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| \helpref{GetMonthName}{wxdatetimegetmonthname}\\
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| \helpref{GetWeekDayName}{wxdatetimegetweekdayname}\\
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| \helpref{GetAmPmStrings}{wxdatetimegetampmstrings}\\
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| \helpref{IsDSTApplicable}{wxdatetimeisdstapplicable}\\
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| \helpref{GetBeginDST}{wxdatetimegetbegindst}\\
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| \helpref{GetEndDST}{wxdatetimegetenddst}\\
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| \helpref{Now}{wxdatetimenow}\\
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| \helpref{Today}{wxdatetimetoday}
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| 
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| \membersection{Constructors, assignment operators and setters}
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| 
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| \membersection{Accessors}
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| 
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| \membersection{Date comparison}
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| 
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| \membersection{Date arithmetics}
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| 
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| \membersection{Parsing and formatting dates}
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| 
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| \membersection{Calendar calculations}
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| 
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| \membersection{Astronomical/historical functions}
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| 
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| \membersection{Time zone support}
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| 
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| \helponly{\insertatlevel{2}{
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| 
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| \wxheading{Members}
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| 
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| }}
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| 
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| \membersection{wxDateTime::ConvertYearToBC}\label{wxdatetimeconvertyeartobc}
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| 
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| \func{static int}{ConvertYearToBC}{\param{int }{year}}
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| 
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| Converts the year in absolute notation (i.e. a number which can be negative,
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| positive or zero) to the year in BC/AD notation. For the positive years,
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| nothing is done, but the year 0 is year 1 BC and so for other years there is a
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| difference of 1.
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| 
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| This function should be used like this:
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| 
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| \begin{verbatim}
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|     wxDateTime dt(...);
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|     int y = dt.GetYear();
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|     printf("The year is %d%s", wxDateTime::ConvertYearToBC(y), y > 0 ? "AD" : "BC");
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| \end{verbatim}
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| 
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| \membersection{wxDateTime::GetAmPmStrings}\label{wxdatetimegetampmstrings}
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| 
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| \func{static void}{GetAmPmStrings}{\param{wxString *}{am}, \param{wxString *}{pm}}
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| 
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| \membersection{wxDateTime::GetBeginDST}\label{wxdatetimegetbegindst}
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| 
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| \func{static wxDateTime}{GetBeginDST}{\param{int }{year = Inv\_Year}, \param{Country }{country = Country\_Default}}
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| 
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| \membersection{wxDateTime::GetCountry}\label{wxdatetimegetcountry}
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| 
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| \func{static Country}{GetCountry}{\void}
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| 
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| \membersection{wxDateTime::GetCurrentYear}\label{wxdatetimegetcurrentyear}
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| 
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| \func{static int}{GetCurrentYear}{\param{Calendar }{cal = Gregorian}}
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| 
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| \membersection{wxDateTime::GetCurrentMonth}\label{wxdatetimegetcurrentmonth}
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| 
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| \func{static Month}{GetCurrentMonth}{\param{Calendar }{cal = Gregorian}}
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| 
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| \membersection{wxDateTime::GetCentury}\label{wxdatetimegetcentury}
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| 
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| \func{static int}{GetCentury}{\param{int }{year = Inv\_Year}}
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| 
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| \membersection{wxDateTime::GetEndDST}\label{wxdatetimegetenddst}
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| 
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| \func{static wxDateTime}{GetEndDST}{\param{int }{year = Inv\_Year}, \param{Country }{country = Country\_Default}}
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| 
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| \membersection{wxDateTime::GetMonthName}\label{wxdatetimegetmonthname}
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| 
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| \func{static wxString}{GetMonthName}{\param{Month }{month}, \param{NameFlags }{flags = Name\_Full}}
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| 
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| \membersection{wxDateTime::GetNumberOfDays}\label{wxdatetimegetnumberofdays}
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| 
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| \func{static wxDateTime\_t}{GetNumberOfDays}{\param{int }{year}, \param{Calendar }{cal = Gregorian}}
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| 
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| \func{static wxDateTime\_t}{GetNumberOfDays}{\param{Month }{month}, \param{int }{year = Inv\_Year}, \param{Calendar }{cal = Gregorian}}
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| 
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| \membersection{wxDateTime::GetWeekDayName}\label{wxdatetimegetweekdayname}
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| 
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| \func{static wxString}{GetWeekDayName}{\param{WeekDay }{weekday}, \param{NameFlags }{flags = Name\_Full}}
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| 
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| \membersection{wxDateTime::IsLeapYear}\label{wxdatetimeisleapyear}
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| 
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| \func{static bool}{IsLeapYear}{\param{int }{year = Inv\_Year}, \param{Calendar }{cal = Gregorian}}
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| 
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| \membersection{wxDateTime::IsWestEuropeanCountry}\label{wxdatetimeiswesteuropeancountry}
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| 
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| \func{static bool}{IsWestEuropeanCountry}{\param{Country }{country = Country\_Default}}
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| 
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| \membersection{wxDateTime::IsDSTApplicable}\label{wxdatetimeisdstapplicable}
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| 
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| \func{static bool}{IsDSTApplicable}{\param{int }{year = Inv\_Year}, \param{Country }{country = Country\_Default}}
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| 
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| \membersection{wxDateTime::Now}\label{wxdatetimenow}
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| 
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| \func{static wxDateTime}{Now}{\void}
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| 
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| \membersection{wxDateTime::SetCountry}\label{wxdatetimesetcountry}
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| 
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| \func{static void}{SetCountry}{\param{Country }{country}}
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| 
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| \membersection{wxDateTime::Today}\label{wxdatetimetoday}
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| 
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| \func{static wxDateTime}{Today}{\void}
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| 
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