Fórum contador na tela #305170

unit Unit1;

interface

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

type
  TConta = class(TThread)
  private
  protected
    procedure Execute; override;
    Procedure IncNum;
  end;

type
  TForm1 = class(TForm)
    Button1: TButton;
    Label1: TLabel;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  Num: Integer;

implementation

{$R *.dfm}

procedure TConta.Execute;
begin
    FreeOnTerminate := true;
    while not terminated do begin
      Synchronize(IncNum);
      Form1.Label1.Caption := IntToStr(Num);
      sleep(100);
    end;  
end;

Procedure TConta.IncNum;
begin
    inc(Num);
end;


procedure TForm1.Button1Click(Sender: TObject);
begin
   TConta.Create(False);
end;

end.