Cуществует ли диск в системе?

function DriveExists (Drive: Byte) : boolean;
begin
  Result := Boolean (GetLogicalDrives and (1 shl Drive));
end;
 
procedure TForm1.Button1Click(Sender : TObject);
  var Drive : byte;
begin
for Drive := 0 to 25 do
  If DriveExists (Drive) then
begin
ListBox1.Items.Add (Chr(Drive+$41));
end;
end;

Автор: Serious

Взято с Vingrad.ru https://forum.vingrad.ru