private void DoInterval(object obj)
{
if (lstNic.InvokeRequired)
{
BaseDelegate bd = new BaseDelegate(DoInterval);
this.Invoke(bd, obj);
return;
}
else
{
lstNic.Items.Clear();
Win32Native.MIB_IF_TABLE2 s_Mit2 = GetMIB2Interface();
for (int i = 0; i < s_Mit2.NumEntries; i++)
{
lstNic.Items.Add(
new ListViewItem(
new string[]
{
s_Mit2.Table[i].Description,
s_Mit2.Table[i].Alias,
s_Mit2.Table[i].InOctets.ToString(),
s_Mit2.Table[i].OutOctets.ToString()
}
)
);
}
}
}
public static unsafe Win32Native.MIB_IF_TABLE2 GetMIB2Interface()
{
int ptr_Mit2 = Win32Native.NULL;
Win32Native.MIB_IF_TABLE2 s_Mit2 = new Win32Native.MIB_IF_TABLE2(); // create empty mit2.
if (Win32Native.GetIfTable2(ref ptr_Mit2) != Win32Native.NO_ERROR)
{
return(s_Mit2);
}
if (Win32Native.RtlMoveMemory(ref s_Mit2.NumEntries, ptr_Mit2, 4) && s_Mit2.NumEntries > 0)
{
ptr_Mit2 = ptr_Mit2 + 8; // ptr_Mit2 += 8; offset pointer to MIB_IF_TABLE2::Table
int dwBufferSize = 1352; // sizeof(Win32Native.MIB_IF_ROW2);
s_Mit2.Table = new Win32Native.MIB_IF_ROW2[s_Mit2.NumEntries];
for (int i = 0; i < s_Mit2.NumEntries; i++)
{
IntPtr ptr = (IntPtr)(ptr_Mit2 + (i * dwBufferSize));
s_Mit2.Table[i] = (Win32Native.MIB_IF_ROW2)
Marshal.PtrToStructure(ptr, typeof(Win32Native.MIB_IF_ROW2));
}
}
return(s_Mit2);
}
