[Lazarus-es] imprimir tickeadora: ticket y testigo

[Claudio Romero]

// Aca paso un ejemplo, funciona bien en una matricial Epson FX-870.
// Saludos.

//---------
unit ImpDuplicado_;

{$mode objfpc}{$H+}

interface

uses
  Classes, SysUtils, FileUtil, LResources, Forms, Controls, Graphics, Dialogs,
  StdCtrls,strutils,printers, PrintersDlgs;

type

  { TForm1 }

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

var
  Form1: TForm1;

implementation

{ TForm1 }
procedure ImprimirDuplicadoCadenaRaw(S:String);
const Kenter=CHR(13)+CHR(10);
	ComienzoDuplicado=40;
var  Written: Integer;
begin
	Written:=0;
	S:=S+DupeString(' ',ComienzoDuplicado-Length(S))+S;
	S:=S+Kenter;
	Printer.Write(S[1], Length(S), Written);
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
	Printer.PrinterIndex:=0;
	Printer.RawMode := True;    Printer.BeginDoc;
	ImprimirDuplicadoCadenaRaw('RAZON SOCIAL');
	ImprimirDuplicadoCadenaRaw('LOS ALAMOS SEGUROS');
	ImprimirDuplicadoCadenaRaw('25 DE MAYO 1545');
	Printer.EndDoc;
end;

initialization
  {$I unit1.lrs}

end.