Voici un code qui permet déterminer l'état de connexion de votre système local et comment lancer ou mettre
à une connexion Internet fin en utilisant Visual Basic 2005,ce que je souhaite c'est comment
faire pour que ce soit fait en Visual C++ 6.0 ,est ce que quelqu'un peut m'aider!
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Private Declare Function InternetGetConnectedState Lib "wininet.dll" (ByRef lpdwFlags As Int32, _
ByVal dwReserved As Int32) As Boolean
Private Declare Function InternetDial Lib "Wininet.dll" (ByVal hwndParent As IntPtr, _
ByVal lpszConnectoid As String, ByVal dwFlags As Int32, ByRef lpdwConnection As Int32, _
ByVal dwReserved As Int32) As Int32
Private Declare Function InternetHangUp Lib "Wininet.dll" _
(ByVal lpdwConnection As Int32, ByVal dwReserved As Int32) As Int32
Private Enum Flags As Integer
'Local system uses a LAN to connect to the Internet.
INTERNET_CONNECTION_LAN = &H2
'Local system uses a modem to connect to the Internet.
INTERNET_CONNECTION_MODEM = &H1
'Local system uses a proxy server to connect to the Internet.
INTERNET_CONNECTION_PROXY = &H4
'Local system has RAS installed.
INTERNET_RAS_INSTALLED = &H10
End Enum
'Declaration Used For InternetDialUp.
Private Enum DialUpOptions As Integer
INTERNET_DIAL_UNATTENDED = &H8000
INTERNET_DIAL_SHOW_OFFLINE = &H4000
INTERNET_DIAL_FORCE_PROMPT = &H2000
End Enum
Private Const ERROR_SUCCESS = &H0
Private Const ERROR_INVALID_PARAMETER = &H87
Private mlConnection As Int32
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Dim lngFlags As Long
If InternetGetConnectedState(lngFlags, 0) Then
'connected.
If lngFlags And Flags.INTERNET_CONNECTION_LAN Then
'LAN connection.
MsgBox("LAN connection.")
ElseIf lngFlags And Flags.INTERNET_CONNECTION_MODEM Then
'Modem connection.
MsgBox("Modem connection.")
ElseIf lngFlags And Flags.INTERNET_CONNECTION_PROXY Then
'Proxy connection.
MsgBox("Proxy connection.")
End If
Else
'not connected.
MsgBox("Not connected.")
End If
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Dim DResult As Int32
DResult = InternetDial(Me.Handle, "My Connection", DialUpOptions.INTERNET_DIAL_FORCE_PROMPT, mlConnection, 0)
If (DResult = ERROR_SUCCESS) Then
MessageBox.Show("Dial Up Successful", "Dial-Up Connection")
Else
MessageBox.Show("UnSuccessFull Error Code" & DResult, "Dial-Up Connection")
End If
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Dim Result As Int32
If Not (mlConnection = 0) Then
Result = InternetHangUp(mlConnection, 0&)
If Result = 0 Then
MessageBox.Show("Hang up successful", "Hang Up Connection")
Else
MessageBox.Show("Hang up NOT successful", "Hang Up Connection")
End If
Else
MessageBox.Show("You must dial a connection first!", "Hang Up Connection")
End If