How can i make my application be notified when an internet connection established or terminated (like MSN messenger)
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How can i make my application be notified when an internet connection established or terminated (like MSN messenger)
'In a Module..
Private Declare Function RegOpenKey Lib "advapi32.dll" Alias "RegOpenKeyA" (ByVal hKey As Long, ByVal lpSubKey As String, phkResult As Long) As Long
Private Declare Function RegQueryValueEx Lib "advapi32.dll" Alias "RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal lpReserved As Long, lpType As Long, lpData As Any, lpcbData As Long) As Long ' Note that if you declare the lpData parameter as string, you must pass it By Value.
Private Declare Function RegCloseKey Lib "advapi32.dll" (ByVal hKey As Long) As Long
Private Const HKEY_LOCAL_MACHINE = &H80000002
Public Function IsConnected() As Boolean
Dim lRegKey As Long
Dim bData(3) As Byte
If RegOpenKey(HKEY_LOCAL_MACHINE, "System\CurrentControlSet\Services\RemoteAccess", lRegKey) = 0 Then
'Opened RegKey Successfully..
If RegQueryValueEx(lRegKey, "Remote Connection", 0&, 1&, bData(0), 4) = 0 Then
'Query the Value of "Remote Connection" 1 - Connected, 0 - Not Connected
IsConnected = bData(0)
Else
'Counldn't find the Value, assume no Connection
IsConnected = False
End If
'Close the Registry Key
Call RegCloseKey(lRegKey)
End If
End Function
This proc will tell you if you are connected to the internet. Create a loop and check when connection is established
Iouri Boutchkine
[email protected]