کار با پرینتر
uses
Printers;
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
Combobox1.Items.Clear;
Combobox1.Items.AddStrings(Printer.Printers);
label1.Caption := Format('Default Printer: %s',[GetDefaultPrinter]);
end;
procedure TfrmMain.Button2Click(Sender: TObject);
begin
if Combobox1.Text <> '' then
SetDefaultPrinter(Combobox1.Text)
else ShowMessage('Choose a Printer first !');
end;
منبع : یادم نیست!