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Private Const INTERNET_STATE_DISCONNECTED_BY_USER = &H10
Private Const ISO_FORCE_DISCONNECTED = &H1
Private Const INTERNET_STATE_CONNECTED = &H1
'
Private Type INTERNET_CONNECTED_INFO
dwConnectedState As Long
dwFlags As Long
End Type
Private Declare Function InternetSetOption Lib "wininet.dll" Alias "InternetSetOptionA" (ByVal hInternet As Long, ByVal dwOption As Long, lpBuffer As Any, ByVal dwBufferLength As Long) As LongPrivate Sub Command1_Click()
Dim ConInfo As INTERNET_CONNECTED_INFO, lRetValue As Long
ConInfo.dwConnectedState = INTERNET_STATE_DISCONNECTED_BY_USER
ConInfo.dwFlags = ISO_FORCE_DISCONNECTEDlRetValue = InternetSetOption(0&, INTERNET_OPTION_CONNECTED_STATE, ConInfo, Len(ConInfo))
If lRetValue = True Then '表示成功
MsgBox "OK!"
End If
End Sub