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