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procedure Tfrm_dlg_anmeldung.cmb_userKeyPress(Sender: TObject; var Key: Char);
begin
  if Key = Char(13) then inp_pw.setFocus;
end;					

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procedure Tfrm_dlg_anmeldung.cmb_userKeyPress(Sender: TObject; var Key: Char);
begin
  if Key = Char(13) then inp_pw.setFocus;
  if Key = Char(9) then
  begin
    Key := Char(13);
    inp_pw.SetFocus;
  end;

end;					

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unit Unit6;

interface

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

  const C_PWMessage=WM_User+77;

type
  TForm6 = class(TForm)
    ComboBox1: TComboBox;
    pwedit: TEdit;
    procedure ComboBox1KeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
    Procedure FocusPW(var M:TMessage);message C_PWMessage;
  end;

var
  Form6: TForm6;

implementation

{$R *.dfm}

procedure TForm6.ComboBox1KeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);
begin
  if (key=vk_tab) or (key=13) then
    begin
      key := 13;
      PostMessage(Handle,C_PWMessage, 1, 0);
    end;

end;

procedure TForm6.FocusPW(var M: TMessage);
begin
    pwEdit.SetFocus;
end;

end.