How do I detect a disabled Network Interface Connection from a Windows application?

Question

I would like to know when a interface has been disabled.

If I go into the windows manager and disable one of the 2 enabled connections, GetIfTable() only returns status about 1 interface, it no longer sees the disconnected one. (Returns 1 table)

How can I get something to return that the disabled interface still exists but is currently disabled?

Thanks.

http://msdn.microsoft.com/en-us/library/aa365943%28VS.85%29.aspx

Answer 1

I think you would just need to read the registry.

For example, this is a snippet found on the web of what things should look like:

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Network\{4D36E972-E325-11CE-BFC1-08002BE10318}\{1E6AF554-25FF-40FC-9CEE-EB899472C5A3}\Connection]
"PnpInstanceID"="PCI\\VEN_14E4&DEV_1696&SUBSYS_12BC103C&REV_03\\4&3A321F38&0&10F0"
"MediaSubType"=dword:00000001
"Name"="Lan Name"
"ShowIcon"=dword:00000000
"IpCheckingEnabled"=dword:00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network\{4D36E972-E325-11CE-BFC1-08002BE10318}\{1E6AF554-25FF-40FC-9CEE-EB899472C5A3}\Connection]
"PnpInstanceID"="PCI\\VEN_14E4&DEV_1696&SUBSYS_12BC103C&REV_03\\4&3A321F38&0&10F0"
"MediaSubType"=dword:00000001
"Name"="Lan Name"
"ShowIcon"=dword:00000000
"IpCheckingEnabled"=dword:00000001