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 LongPrivate Sub Command1_Click() '以下是打开CD -ROM的过程代码:retvalue = mciSendString("set CDAudio door open", _ returnstring, 127, 0)End SubPrivate Sub Command2_Click() '关闭CD -ROM用以下代码:retvalue = mciSendString("set CDAudio door closed", _ returnstring, 127, 0)End Sub
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 LongPrivate Sub Command1_Click()
'以下是打开CD -ROM的过程代码:retvalue = mciSendString("set CDAudio door open", _
returnstring, 127, 0)End SubPrivate Sub Command2_Click()
'关闭CD -ROM用以下代码:retvalue = mciSendString("set CDAudio door closed", _
returnstring, 127, 0)End Sub