Timer

[Tiuri]

das sähe dann so aus:

Delphi-Quellcode:

type 
  TAmpelPhase = ( 
    apRot = 0, 
    apGelb = 1, 
    apGruen = 2 ); 

type 
  TForm1 = class(TForm) 
    Timer1: TTimer; 
    procedure FormCreate(Sender: TObject); 
    procedure Timer1Timer(Sender: TObject); 
  private 
    { Private declarations } 
    AktuelleAP: TAmpelPhase; 
  public 
    { Public declarations } 
  end; 

var 
  Form1: TForm1; 

implementation 

{$R *.dfm} 

procedure TForm1.FormCreate(Sender: TObject); 
begin 
  AktuelleAP := apRot; 
end; 

procedure TForm1.Timer1Timer(Sender: TObject); 
begin 
  case AktuelleAP of 
    apRot: 
    begin 
      Caption := 'Rot'; 
      AktuelleAP := apGelb; 
      Timer1.Interval := 500;
    end; 
    apGelb: 
    begin 
      Caption := 'Gelb'; 
      AktuelleAP := apRot;
      Timer1.Interval := 1000; 
    end; 
    apGruen: 
    begin 
      Caption := 'Grün'; 
      AktuelleAP := apGelb;
      Timer1.Interval := 500; 
    end; 
  end; 
end;