unit3.~pas

Delphi下串口通讯源代码(本人用的测试程序)

unit Unit3;

interface

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

type
  TForm3 = class(TForm)
    ProgressBar1: TProgressBar;
    Timer1: TTimer;
    procedure Timer1Timer(Sender: TObject);
  private
    { Private declarations }
  public
    nsteps:integer;
    { Public declarations }
  end;

var
  Form3: TForm3;

implementation

{$R *.dfm}

procedure TForm3.Timer1Timer(Sender: TObject);
begin
  if(progressbar1.Step<  progressbar1.Max) then
    progressbar1.StepIt; 
end;

end.