لیست دستگاههای صدا و Capture

uses
  System.SysUtils, System.Types, System.UITypes, System.Rtti, System.Classes,
  System.Variants, FMX.Types, FMX.Controls, FMX.Forms, FMX.Dialogs, FMX.Layouts,
  FMX.Memo, FMX.Media;

type
  TForm3 = class(TForm)
    Button1: TButton;
    Memo1: TMemo;
    Label1: TLabel;
    Button2: TButton;
    Label2: TLabel;
    Memo2: TMemo;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
    NumberOfDevices : integer;
  public
    { Public declarations }
  end;

implementation
{$R *.fmx}
uses System.TypInfo;

procedure TForm3.Button1Click(Sender: TObject);
var
  i : integer;
begin
  // get the number of audio and video capture devices - if any
  NumberofDevices := TCaptureDeviceManager.Current.Count;
  Label1.Text := 'Devices: '+IntToStr(NumberOfDevices);
  Memo1.Lines.Clear;
  // for each capture device, display the index, name, media type and the state
  for i := 0 to NumberOfDevices-1 do begin
    Memo1.Lines.Add(
      IntToStr(i)
      + ': "'
      + TCaptureDeviceManager.Current.Devices[i].Name
      + '", Type: '
      + GetEnumName(System.TypeInfo(TMediaType),
            Ord(TCaptureDeviceManager.Current.Devices[i].MediaType))
      + ', State: '
      + GetEnumName(System.TypeInfo(TCaptureDeviceState),
           Ord(TCaptureDeviceManager.Current.Devices[i].State))
    );
  end;
end;