TIEPortableDevices.DeviceCount
 
Declaration
property DeviceCount : Integer; (read-only)
Description
Returns the number of devices in the 
device list.
// Refresh the list of devices
procedure TfrmMain.RefreshDeviceList();
var
  I: Integer;
begin
  lbxObjects.Items.Clear;
  if fPortableDevices.RefreshDevices = False then
    raise Exception.create( 'Unable to get devices: ' + fPortableDevices.LastError);
  lbxDevices.Items.Clear;
  for I := 0 to fPortableDevices.DeviceCount - 1 do
    lbxDevices.Items.Add( fPortableDevices.Devices[ I ].ID );
end;