Delphi Varsayılan Yazıcı Ayarlamak

Usesa  Printers ekliyoruz
fonksiyonumuz

function GetDefaultPrinter: string; 
var 
  ResStr: array[0..255] of Char; 
begin
  GetProfileString('Windows', 'device', '', ResStr, 255);
  Result := StrPas(ResStr); 
end; 

procedure SetDefaultPrinter(NewDefPrinter: string); 
var 
  ResStr: array[0..255] of Char; 
begin 
  StrPCopy(ResStr, NewdefPrinter); 
  WriteProfileString('windows', 'device', ResStr); 
  StrCopy(ResStr, 'windows'); 
  SendMessage(HWND_BROADCAST, WM_WININICHANGE, 0, Longint(@ResStr)); 
end;

procedure TfrmMain.FormCreate(Sender: TObject);
begin
  //Fill the combobox with all available printers
  Combobox1.Items.Clear;
  Combobox1.Items.AddStrings(Printer.Printers);
  // Get the Default Printer:
  label1.Caption := Format('Default Printer: %s',[GetDefaultPrinter]);
end;

procedure TfrmMain.Button2Click(Sender: TObject);
begin
  //Set the selected printer in the combobox as default printer
  if Combobox1.Text <> '' then
    SetDefaultPrinter(Combobox1.Text)
  else ShowMessage('Choose a Printer first !');
end;

İndirmek için delphi_default_printer.