Cara membuat konversi detik dengan Dhelpi

1. Masuk ke program dhelpi anda

2. lalu Buat form seperti dibawah ini

3. lalu Masuka source codenya seperti dibawah ini

unit Unit1;

interface

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

type
TForm1 = class(TForm)
Edit1: TEdit;
Label1: TLabel;
Button1: TButton;
Label2: TLabel;
SpeedButton1: TSpeedButton;
procedure FormCreate(Sender: TObject);
procedure FormShow(Sender: TObject);
procedure Button1Click(Sender: TObject);
procedure SpeedButton1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
label2.Caption:='';
end;

procedure TForm1.FormShow(Sender: TObject);
begin
edit1.SetFocus;
end;

procedure TForm1.Button1Click(Sender: TObject);
var
jam,menit,detik,sisa,input:longint;
begin
input:=strtoint(edit1.Text);
jam:=input div 3600;
sisa:=input mod 3600;
menit:=sisa div 60;
detik:=sisa mod 60;
label2.Font.Style:=[fsbold];
label2.Caption:='hasil dari konversi adalah :'+inttostr(jam)+' jam '+inttostr(menit)+' menit '+inttostr(detik)+' detik';
end;

procedure TForm1.SpeedButton1Click(Sender: TObject);
begin
edit1.Clear;
label2.Caption:='';
edit1.SetFocus;
end;

end.

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