[No4noylis]

Вот скрипт на проигрывание музыки: (Повторюсь, нужно убрать кнопку отключения со странички приветствия)

[Files]
Source: "BASS.dll"; DestDir: "{tmp}"; Flags: dontcopy noencryption
Source: "sound.mp3"; DestDir: "{tmp}"; Flags: dontcopy noencryption nocompression
Source: "MusicButton.bmp"; DestDir: "{tmp}"; Flags: dontcopy

Код:

const
  BASS_ACTIVE_STOPPED = 0;
  BASS_ACTIVE_PLAYING = 1;
  BASS_ACTIVE_STALLED = 2;
  BASS_ACTIVE_PAUSED = 3;
  BASS_SAMPLE_LOOP = 4;

var
  mp3Handle: HWND;
  mp3Name: String;
  PlayButton, PauseButton, StopButton: TPanel;
  PlayImage, PauseImage, StopImage: TBitmapImage;
  PlayLabel, PauseLabel, StopLabel: TLabel;
  MouseLabel: Tlabel;

function BASS_Init(device: Integer; freq, flags: DWORD; win: hwnd; CLSID: Integer): Boolean;
  external 'BASS_Init@files:BASS.dll stdcall delayload';

function BASS_StreamCreateFile(mem: BOOL; f: PChar; offset: DWORD; length: DWORD; flags: DWORD): DWORD;
  external 'BASS_StreamCreateFile@files:BASS.dll stdcall delayload';

function BASS_Start(): Boolean;
  external 'BASS_Start@files:BASS.dll stdcall delayload';

function BASS_ChannelPlay(handle: DWORD; restart: BOOL): Boolean;
  external 'BASS_ChannelPlay@files:BASS.dll stdcall delayload';

function BASS_ChannelIsActive(handle: DWORD): Integer;
  external 'BASS_ChannelIsActive@files:BASS.dll stdcall delayload';

function BASS_ChannelPause(handle: DWORD): Boolean;
  external 'BASS_ChannelPause@files:BASS.dll stdcall delayload';

function BASS_Stop(): Boolean;
  external 'BASS_Stop@files:BASS.dll stdcall delayload';

function BASS_Pause(): Boolean;
  external 'BASS_Pause@files:BASS.dll stdcall delayload';

function BASS_Free(): Boolean;
  external 'BASS_Free@files:BASS.dll stdcall delayload';

procedure PlayMouseDown(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
begin
  PlayImage.Left := -96
end;

procedure PlayMouseUp(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
begin
  PlayImage.Left := 0
end;

procedure PlayMouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer);
begin
  if PlayImage.Left <> -96 then PlayImage.Left := -192
end;

procedure PauseMouseDown(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
begin
  PauseImage.Left := -128
end;

procedure PauseMouseUp(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
begin
  PauseImage.Left := -32
end;

procedure PauseMouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer);
begin
  if PauseImage.Left <> -128 then PauseImage.Left := -224
end;

procedure MouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer);
begin
  PlayImage.Left := 0
  PauseImage.Left := -32
end;

function InitializeSetup(): Boolean;
begin
  ExtractTemporaryFile('BASS.dll');
  ExtractTemporaryFile('sound.mp3');
  mp3Name := ExpandConstant('{tmp}\sound.mp3');
  BASS_Init(-1, 44100, 0, 0, 0);
  mp3Handle := BASS_StreamCreateFile(FALSE, PChar(mp3Name), 0, 0, BASS_SAMPLE_LOOP);
  BASS_Start();
  BASS_ChannelPlay(mp3Handle, False);
  Result := True;
end;

procedure PlayButtonOnClick(Sender: TObject);
begin
  case BASS_ChannelIsActive(mp3Handle) of
    BASS_ACTIVE_PAUSED:
      begin
        BASS_ChannelPlay(mp3Handle, False);
        PlayButton.Hide
        PauseButton.Show
      end;
    BASS_ACTIVE_STOPPED:
      begin
        BASS_Init(-1, 44100, 0, 0, 0);
        mp3Handle := BASS_StreamCreateFile(FALSE, PChar(mp3Name), 0, 0, BASS_SAMPLE_LOOP);
        BASS_Start();
        BASS_ChannelPlay(mp3Handle, False);
        PlayButton.Hide
        PauseButton.Show
      end;
  end;
end;

procedure PauseButtonOnClick(Sender: TObject);
begin
  BASS_ChannelPause(mp3Handle);
  PauseButton.Hide
  PlayButton.Show
end;

procedure StopButtonOnClick(Sender: TObject);
begin
  BASS_Stop();
  BASS_Free();
  PauseButton.Hide
  PlayButton.Show
end;

procedure InitializeWizard();
begin
  ExtractTemporaryFile('MusicButton.bmp')
  
  MouseLabel := TLabel.Create(WizardForm)
    MouseLabel.Width := WizardForm.Width
    MouseLabel.Height := WizardForm.Height
    MouseLabel.Autosize := False
    MouseLabel.Transparent := True
    MouseLabel.OnMouseMove := @MouseMove
    MouseLabel.Parent := WizardForm

  PlayButton := TPanel.Create(WizardForm)
    PlayButton.Left := 460
    PlayButton.Top := 65
    PlayButton.Width := 32
    PlayButton.Height := 33
    PlayButton.Cursor := crHand
    PlayButton.ShowHint := True
    PlayButton.Hint := 'Воспроизведение музыки'
    PlayButton.OnClick := @PlayButtonOnClick
    PlayButton.Parent := WizardForm

  PlayImage := TBitmapImage.Create(WizardForm)
    PlayImage.Left := 0
    PlayImage.Top := 0
    PlayImage.Width := 288
    PlayImage.Height := 33
    PlayImage.Enabled := False
    PlayImage.Bitmap.LoadFromFile(ExpandConstant('{tmp}\MusicButton.bmp'))
    PlayImage.Parent := PlayButton
//
    PlayImage.ReplaceColor:=$E2E2E2
    PlayImage.ReplaceWithColor:=clBtnFace


  PlayLabel := TLabel.Create(WizardForm)
    PlayLabel.Width := PlayButton.Width
    PlayLabel.Height := PlayButton.Height
    PlayLabel.Autosize := False
    PlayLabel.Transparent := True
    PlayLabel.OnClick := @PlayButtonOnClick
    PlayLabel.OnMouseDown := @PlayMouseDown
    PlayLabel.OnMouseUp := @PlayMouseUp
    PlayLabel.OnMouseMove := @PlayMouseMove
    PlayLabel.Parent := PlayButton

  PauseButton := TPanel.Create(WizardForm)
    PauseButton.Left := 460
    PauseButton.Top := 65
    PauseButton.Width := 32
    PauseButton.Height := 33
    PauseButton.Cursor := crHand
    PauseButton.ShowHint := True
    PauseButton.Hint := 'Приостановить музыку'
    PauseButton.OnClick := @PauseButtonOnClick
    PauseButton.Parent := WizardForm

  PauseImage := TBitmapImage.Create(WizardForm)
    PauseImage.Left := -32
    PauseImage.Top := 0
    PauseImage.Width := 288
    PauseImage.Height := 33
    PauseImage.Enabled := False
    PauseImage.Bitmap.LoadFromFile(ExpandConstant('{tmp}\MusicButton.bmp'))
    PauseImage.Parent := PauseButton
//
    PauseImage.ReplaceColor:=$E2E2E2
    PauseImage.ReplaceWithColor:=clBtnFace

  PauseLabel := TLabel.Create(WizardForm)
    PauseLabel.Width := PauseButton.Width
    PauseLabel.Height := PauseButton.Height
    PauseLabel.Autosize := False
    PauseLabel.Transparent := True
    PauseLabel.OnClick := @PauseButtonOnClick
    PauseLabel.OnMouseDown := @PauseMouseDown
    PauseLabel.OnMouseUp := @PauseMouseUp
    PauseLabel.OnMouseMove := @PauseMouseMove
    PauseLabel.Parent := PauseButton
end;

procedure DeinitializeSetup();
begin
  BASS_Stop();
  BASS_Free();
end;