Class: CD in Category General VBA/VB6 : Multimedia from Total Visual SourceBook

' Example of the CCD class
'
' To use this example:
' 1. Create a new form.
' 2. Create a command button called 'cmdPlay'
' 3. Create a command button called 'cmdPause'
' 4. Create a command button called 'cmdStop'
' 5. Create a command button called 'cmdBackTrack'
' 6. Create a command button called 'cmdBack'
' 7. Create a command button called 'cmdForward'
' 8. Create a command button called 'cmdForwardTrack'
' 9. Create a command button called 'cmdEject'
' 10. Create a command button called 'cmdPower'
' 11. Create a combo box called 'cboTracks'
' 12. Paste the entire contents of this module into the new form's module.

Private mcd As CCD

Private Sub CreateCDObject()
  ' Instantiate the CCD object
  Set mcd = New CCD
End Sub

Private Sub cboTracks_Click()
  If mcd Is Nothing Then
    CreateCDObject
  End If

  mcd.Track = cboTracks.ListIndex + 1
  mcd.Minutes = 0
  mcd.Seconds = 0
End Sub

Private Sub cmdBack_Click()
  If mcd Is Nothing Then
    CreateCDObject
  End If

  mcd.Seconds = mcd.Seconds - 1
End Sub

Private Sub cmdBackTrack_Click()
  If mcd Is Nothing Then
    CreateCDObject
  End If

  If mcd.Track > 1 Then
    mcd.Track = mcd.Track - 1
    mcd.Minutes = 0
    mcd.Seconds = 0
  End If
End Sub

Private Sub cmdEject_Click()
  If mcd Is Nothing Then
    CreateCDObject
  End If

  mcd.Eject
  mcd.CloseCD
End Sub

Private Sub cmdForward_Click()
  If mcd Is Nothing Then
    CreateCDObject
  End If

  mcd.Seconds = mcd.Seconds + 1
End Sub

Private Sub cmdForwardTrack_Click()
  If mcd Is Nothing Then
    CreateCDObject
  End If

  If mcd.Track < mcd.Tracks.Count Then
    mcd.Track = mcd.Track + 1
    mcd.Minutes = 0
    mcd.Seconds = 0
  End If
End Sub

Private Sub cmdPause_Click()
  If mcd Is Nothing Then
    CreateCDObject
  End If

  mcd.Pause
End Sub

Private Sub cmdPlay_Click()
  If mcd Is Nothing Then
    CreateCDObject
  End If
  mcd.Play
End Sub

Private Sub cmdPower_Click()
  Dim intTrackCounter As Integer

  If mcd Is Nothing Then
    CreateCDObject
  End If

  mcd.OpenCD

  ' If tracks exist, then populate combo
  If Not mcd.Tracks Is Nothing Then

    For intTrackCounter = 1 To mcd.Tracks.Count
      cboTracks.AddItem "Track " & intTrackCounter
    Next intTrackCounter

    cboTracks.ListIndex = 0

  End If

End Sub

Private Sub cmdStop_Click()
  If mcd Is Nothing Then
    CreateCDObject
  End If

  mcd.StopCD
End Sub

Private Sub Form_Load()
  Me.cmdBack.Caption = "Back"
  Me.cmdBackTrack.Caption = "BackTrack"
  Me.cmdEject.Caption = "Eject"
  Me.cmdForward.Caption = "Forward"
  Me.cmdForwardTrack.Caption = "ForwardTrack"
  Me.cmdPause.Caption = "Pause"
  Me.cmdPlay.Caption = "Play"
  Me.cmdStop.Caption = "Stop"
  Me.cmdPower.Caption = "Power"
End Sub

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