24 Hour format for Date time picker

also I want to change time format of TeeChart (in QuickReport) to 24 hour format.

Make sure that your Windows settings are setup to use the 24 hour clock rather than the 12 hour one

The Neil

You can use the ShortDateFormat system variable to achieve this.  In the project source, store the initial setting for the variable in one of your own, set the 24hr type, and then restore at the end of the program.  Like this...

program Project1;

uses
  Forms, SysUtils,
  Unit1 in 'Unit1.pas' {Form1};

var
  TmpS : String;
  TmpL : String;
begin
  TmpS:=ShortTimeFormat;
  ShortTimeFormat:='24hh:mm';
  TmpL:=LongTimeFormat;
  LongTimeFormat:='24hh:mm';
  Application.Initialize;
  Application.CreateForm(TForm1, Form1);
  Application.Run;
  ShortTimeFormat:=TmpS;
  LongTimeFormat:=TmpL;
end.

I try it but it didn't work. It works only with DateTimeToString function, but it did not affect DateTimePicker

Motaz

I'm afraid I can't help you then, cos that works for me!  It makes EVERYTHING that uses time 24hr and resets it later to the original Windows setting.

Did you actually put it in the Project Source Code?  (It has to be implemented before the controls are created - I think.)

John.

Did you check it with DateTimePicker ?

hello
did you try ?

Yes it didn't work, I need a 24 hour format for a DateTimePicker and no thing else

Motaz

Thanks Barry, it works.Thanks for your great help