Code:
Private Declare Function mciSendString Lib "winmm.dll" Alias "mciSendStringA" (ByVal lpstrCommand As String, ByVal lpstrReturnString As String, ByVal uReturnLength As Long, ByVal hwndCallback As Long) As Long

Private Sub cmdClose_Click()
retvalue = mciSendString("set CDAudio door closed", _
returnstring, 127, 0)
End Sub

Private Sub cmdOpen_Click()
retvalue = mciSendString("set CDAudio door open", _
returnstring, 127, 0)


End Sub