DELPHI - Track Bar i Media Player

Code:


procedure TForm1.TrackBar1Change(Sender: TObject);

begin
  if (MediaPlayer1.Mode = mpPlaying) or
     (MediaPlayer1.Mode = mpPaused) then
  begin
    MediaPlayer1.Position := TrackBar1.Position;
    MediaPlayer1.Play;
  end;

end;

Code:

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    MediaPlayer1: TMediaPlayer;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    Button4: TButton;
    OpenDialog1: TOpenDialog;
    TrackBar1: TTrackBar;
    Timer1: TTimer;
    MainMenu1: TMainMenu;
    File1: TMenuItem;
    Open1: TMenuItem;
    Exit1: TMenuItem;
    Button5: TButton;
    Help1: TMenuItem;
    About1: TMenuItem;
    Label1: TLabel;
    Label2: TLabel;
    TrackBar2: TTrackBar;
    CheckBox1: TCheckBox;
    StaticText1: TStaticText;
    Button6: TButton;
    Button7: TButton;
    Image1: TImage;
    Timer2: TTimer;
    ListBox1: TListBox;
    Button8: TButton;
    Button9: TButton;
    Button10: TButton;
    procedure ListBox1DblClick(Sender: TObject);
    procedure Button10Click(Sender: TObject);
    procedure Button9Click(Sender: TObject);
    procedure Button8Click(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure ListBox1Click(Sender: TObject);
    procedure FormDestroy(Sender: TObject);
    procedure Timer2Timer(Sender: TObject);
    procedure Button6Click(Sender: TObject);
    procedure Button7Click(Sender: TObject);
    procedure MediaPlayer1Notify(Sender: TObject);
    procedure TrackBar2Change(Sender: TObject);
    procedure About1Click(Sender: TObject);
    procedure Button5Click(Sender: TObject);
    procedure Open1Click(Sender: TObject);
    procedure Exit1Click(Sender: TObject);
    procedure TrackBar1Change(Sender: TObject);
    procedure Timer1Timer(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
    B:TBitmap;
  end;

var
  Form1: TForm1;
  Zvuk: String;
  pjesma:string;



implementation

uses Unit2, Unit3;

{$R *.dfm}
 type
  TGlasnoca = record
    Levi, Desni: Word;
  end;


procedure TForm1.Button1Click(Sender: TObject);
begin
MediaPlayer1.Close;
MediaPlayer1.FileName := Pjesma ;
MediaPlayer1.Open;
MediaPlayer1.Play;
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
 MediaPlayer1.Pause;
end;

procedure TForm1.Button3Click(Sender: TObject);
  var
  Stanje: Boolean;
begin
  Stanje := CheckBox1.Checked;
  CheckBox1.Checked := False;
  MediaPlayer1.Stop;
  CheckBox1.Checked := Stanje;

end;

procedure TForm1.Button4Click(Sender: TObject);
begin
if OpenDialog1.Execute then
ListBox1.Items.Add(OpenDialog1.FileName);
end;

procedure TForm1.FormCreate(Sender: TObject);
var a:textfile;
begin
try
listbox1.Items.LoadFromFile('lista.lst');
except
assignfile(a,'c:\lista.lst');
rewrite(a);
closefile(a);
end;
Zvuk := '';
B:=TBitmap.Create;
B.Width:=Image1.Width;
B.Height:=Image1.Height;
end;

procedure TForm1.Timer1Timer(Sender: TObject);
begin
  TrackBar1.OnChange := nil;
  TrackBar1.Position := MediaPlayer1.Position;
  TrackBar1.OnChange := TrackBar1Change;

  Label1.Caption:=formatdatetime('dd.mm.yyyy', Date);
  Label2.Caption:=formatdatetime('hh.mm.ss', Time);
end;


procedure TForm1.TrackBar1Change(Sender: TObject);

begin
  if (MediaPlayer1.Mode = mpPlaying) or
     (MediaPlayer1.Mode = mpPaused) then
  begin
    MediaPlayer1.Position := TrackBar1.Position;
    MediaPlayer1.Play;
  end;

end;





procedure TForm1.Exit1Click(Sender: TObject);
begin
close;
end;

procedure TForm1.Open1Click(Sender: TObject);
begin
if OpenDialog1.Execute then
ListBox1.Items.Add(OpenDialog1.FileName);
end;

procedure TForm1.Button5Click(Sender: TObject);
begin
showmessage('Thank you for using my software.Coded by Passwd!!');
close;
end;


procedure TForm1.About1Click(Sender: TObject);
begin
Form2.ShowModal;
end;

procedure TForm1.TrackBar2Change(Sender: TObject);
var
  G: TGlasnoca;
begin
  G.Levi := TrackBar2.Position;
  G.Desni := TrackBar2.Position;
  waveOutSetVolume(0, Cardinal(G));

end;

procedure TForm1.MediaPlayer1Notify(Sender: TObject);
begin
if (MediaPlayer1.Mode = mpStopped) and
     CheckBox1.Checked then
begin
    MediaPlayer1.Rewind;
    MediaPlayer1.Play;
  end;
end;

procedure TForm1.Button7Click(Sender: TObject);
begin
Form1.Height:=225;
end;

procedure TForm1.Button6Click(Sender: TObject);
begin
Form1.Height:=534;
end;

procedure TForm1.Timer2Timer(Sender: TObject);
begin
B.Canvas.ellipse(Random(B.Width), Random(B.Height),
Random(B.Width), Random(B.Height));
B.Canvas.rectangle(Random(B.Width), Random(B.Height),
Random(B.Width), Random(B.Height));

Image1.Picture.Bitmap := B;
end;

procedure TForm1.FormDestroy(Sender: TObject);
begin
B.Free;
end;

procedure TForm1.ListBox1Click(Sender: TObject);
begin
if ListBox1.ItemIndex <> -1 then
 pjesma:=ListBox1.Items[ListBox1.ItemIndex];
end;

procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
listbox1.Items.SaveToFile('c:\lista.lst');
end;

procedure TForm1.Button8Click(Sender: TObject);
begin
mediaPlayer1.Close;
form3.showmodal;

end;

procedure TForm1.Button9Click(Sender: TObject);
begin
Listbox1.DeleteSelected;
end;

procedure TForm1.Button10Click(Sender: TObject);
begin
listbox1.Clear;
end;

procedure TForm1.ListBox1DblClick(Sender: TObject);
begin
MediaPlayer1.Close;
MediaPlayer1.FileName:=pjesma;
MediaPlayer1.Open;
MediaPlayer1.Play;
end;

end.