public static int QueryAdapter(string adapterName, out INTF_ENTRY entry)
{
// Attempt to get the status of the indicated
// interface by calling WZCQueryInterface. If
// it works, we return true; if not, false.
// Note that the first parameter, the WZC server,
// is set to null, apparently indicating that the
// local machine is the target.
entry = new INTF_ENTRY();
INTF_FLAGS flags = 0;
entry.Guid = adapterName;
int retVal = 0;
try
{
retVal = WZC.WZCQueryInterface(null, INTF_FLAGS.INTF_ALL, ref entry, out flags);
}
catch (Exception ex)
{
// on a throw, the return value needs to get set to a non-zero
try
{
WZC.WZCDeleteIntfObj(ref entry);
}
catch { }
return(-1);
}
return(retVal);
}
public void Dispose()
{
if (wszDescr != IntPtr.Zero)
{
Marshal.FreeHGlobal(this.wszDescr);
}
if (wszGuid != IntPtr.Zero)
{
Marshal.FreeHGlobal(this.wszGuid);
}
if (bInitialized != 0)
{
WZC.WZCDeleteIntfObj(ref this);
}
}
