Today, I saw how Windows can get traffic interfaces.

Now I will post the code first. Because it is too late, it is time to go to bed. I will study it tomorrow.

PMI-> table [I]. dwinoctets; indicates the download traffic.

PMI-> dwnumentries indicates the number of NICs on your machine, which is listed in the same order as the ipconfig/all command in the command prompt (CMD. Note that the third parameter of getiftable (PMI, & dwsize, true); is true.

The Code is as follows:

Mib_iftable * PMI;

PMI = (mib_iftable *) malloc (sizeof (mib_iftable ));
Ulong dwsize = sizeof (mib_iftable );

DWORD errcode = getiftable (PMI, & dwsize, true );
If (error_insufficient_buffer = errcode)
{
Free (PMI );
PMI = (mib_iftable *) malloc (dwsize );
}
Errcode = getiftable (PMI, & dwsize, true );
If (no_error! = Errcode)
{
Return;
}
For (INT I = 0; I <PMI-> dwnumentries; ++ I)
{
Int xxx = PMI-> table [I]. dwinoctets;
}

Return;