RS232

[Ultimator]

Müsste gehen, wenn du nen ApdComPort1 und 2 Buttons auf der Form hast

Delphi-Quellcode:

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    procedure Button1MouseDown(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
    procedure Button1MouseUp(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
    procedure Button2Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button2MouseDown(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
    procedure Button2MouseUp(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
  private
    ButtonPressed: boolean;
    procedure SendSign(Zeichen: char);
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}


procedure Wait(milliseconds: Cardinal); 
var 
  Start : Integer; 
begin 
  Start := GetTickCount; 
  while GetTickCount-Start <= milliseconds do
    Application.ProcessMessages;
end;

procedure TForm1.SendSign(Zeichen: char);
begin
 while ButtonPressed do
  begin
   ApdComPort1.Output := Zeichen;
   Wait(200);
  end;
end;

procedure TForm1.Button1MouseDown(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
begin
 ButtonPressed := true;
end;

procedure TForm1.Button1MouseUp(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
begin
 ButtonPressed := false;
end;

begin

procedure TForm1.Button2Click(Sender: TObject);
begin
 SendSign('+');
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
 SendSign('+');
end;

procedure TForm1.Button2MouseDown(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
begin
 ButtonPressed := true;
end;

procedure TForm1.Button2MouseUp(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
begin
 ButtonPressed := false;
end;

end.