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Tip of the Day
Language: VB4/32,VB5,VB6
Expertise: beginner
Jul 25, 2001

WEBINAR:

On-Demand

Application Security Testing: An Integral Part of DevOps


Open and close the CD drive's door

Here's a short code snippet that lets you programmatically open and close the CD door. Note that not all the CD drives support these functions:

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 cmdOpenDoor_Click()
    mciSendString "Set CDAudio Door Open Wait", vbNullString, 0, 0
End Sub

Private Sub cmdCloseDoor_Click()
    mciSendString "Set CDAudio Door Closed Wait", vbNullString, 0, 0
End Sub
Francesco Balena
 
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