Solved

getting/setting the short dateformat in windows by using delphi?

Posted on 2004-04-20
13
588 Views
Last Modified: 2010-04-05
how do i do this?

Our application must have a specific short dateformat.
You can find the dateformat i want to change by clicking control panel-->regional settings-->short dateformat
0
Comment
Question by:Darth_helge
  • 3
  • 3
  • 2
  • +2
13 Comments
 
LVL 17

Assisted Solution

by:mokule
mokule earned 200 total points
ID: 10867394
If You mean inside Your application

variable

ShortDateFormat
0
 
LVL 5

Author Comment

by:Darth_helge
ID: 10867415
but some places in my app i get the date from windows. if this date is in yy.mm.dd, can I just set the ShortDateFormat variable inside my application to the same?
I don't have to change anything in Windows?
0
 
LVL 12

Accepted Solution

by:
Ivanov_G earned 200 total points
ID: 10867416

   use user defined settings, for example

   unit MyAppContants;
   ....
   const
      Format_ShortDate  = 'dd.mm.yyyy';
      Format_LongDate   = 'dd.mm.yyyy hh:nn:ss'

   procedure MyDateToStr(var InpDate : TDateTime);
   begin
     InpDate = FormatDateTime(Format_ShortDate, InpDate);
   end;

   then from your application use this method ...
0
Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

 
LVL 17

Expert Comment

by:mokule
ID: 10867424

You don't have to change anything in Windows.
0
 
LVL 2

Assisted Solution

by:Ratje
Ratje earned 100 total points
ID: 10867434
Setting and restoring shortdateformat ( and changing separator ) example

var
  Dtscheiding : Char ;
  Dtformat : String [20] ;

  Dtformat        := shortDateFormat ;            // oldformat
  DtSepar    := DateSeparator ;              // oldseparator

  ShortDateFormat := 'dd/mm/yyyy';      
  DateSeparator   := '-';                      


  ShortDateFormat := Dtformat ;                   // restore oldformat
  DateSeparator     := DtSepar ;                 // restore separator

Rat
0
 
LVL 2

Expert Comment

by:Ratje
ID: 10867439
oops Dtscheiding should be DtSepar
0
 
LVL 12

Expert Comment

by:Ivanov_G
ID: 10867468

    Darth_helge, if you get the Date from windows :

    var
        CurrDate : String;
    begin
       CurrDate := MyDateToStr(Now);

    the implementation of MyDateToStr - see my post above. I think you should not change anything in Windows.
0
 
LVL 27

Expert Comment

by:kretzschmar
ID: 10867498
just another way

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TForm1 = class(TForm)
    Edit1: TEdit;
    Button1: TButton;
    Button2: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

//get
procedure TForm1.Button1Click(Sender: TObject);
var
  P : array[0..100] of char;
begin
  getLocaleInfo(LOCALE_USER_DEFAULT,LOCALE_SSHORTDATE,p,SizeOf(p));
  ShowMessage(p);
end;

//set
procedure TForm1.Button2Click(Sender: TObject);
var s : String;
begin
  s := edit1.Text;
  setLocaleInfo(LOCALE_USER_DEFAULT,LOCALE_SSHORTDATE,PChar(s));
end;

end.

meikl ;-)
0
 
LVL 17

Expert Comment

by:mokule
ID: 10867506
Moreover You don't need set ShortDateFormat.

This variable is set when Your application starts and if variable UpdateFormatSettings is set to True (default setting) it is updated every time user changes Windows setting.

You need to set ShortDateFormat if You store/load dates in a string format and want to convert from string to date and vice versa.
0
 
LVL 5

Author Comment

by:Darth_helge
ID: 10867577
sorry.. i was going to give more people points.. but i did wrong
0
 
LVL 5

Author Comment

by:Darth_helge
ID: 10867649
yes, there were many good answers here
0

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Send message from delphi to whatsapp, is it possible? 3 1,698
Downloading email attachments 2 80
When i run adoquery my application freezes 26 180
Dev express lookupcombo 3 35
Introduction The parallel port is a very commonly known port, it was widely used to connect a printer to the PC, if you look at the back of your computer, for those who don't have newer computers, there will be a port with 25 pins and a small print…
Creating an auto free TStringList The TStringList is a basic and frequently used object in Delphi. On many occasions, you may want to create a temporary list, process some items in the list and be done with the list. In such cases, you have to…
Established in 1997, Technology Architects has become one of the most reputable technology solutions companies in the country. TA have been providing businesses with cost effective state-of-the-art solutions and unparalleled service that is designed…
In an interesting question (https://www.experts-exchange.com/questions/29008360/) here at Experts Exchange, a member asked how to split a single image into multiple images. The primary usage for this is to place many photographs on a flatbed scanner…

830 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question