interface

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, ComCtrls, MMSystem;

type
TForm1 = class(TForm)
Button1: TButton;
Button2: TButton;
ComboBox1: TComboBox;
Button3: TButton;
procedure Button1Click(Sender: TObject);
function CloseCD(Drive : string) : Boolean;
function OpenCD(Drive : string) : Boolean;
procedure FormCreate(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
private
public
end;

var
Form1: TForm1;
Driv: array [1..25] of string;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
OpenCD(ComboBox1.Text);
end;

function TForm1.OpenCD(Drive: string): Boolean;
var
Res : MciError;
OpenParm: TMCI_Open_Parms;
Flags : DWord;
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