Note：需CE4.0或更高版本（兼容NDIS5.1）支持

一、加入頭文件

#include <winioctl.h>
#include <ntddndis.h>
#include <nuiouser.h>

二、Attach to NDISUIO

HANDLE hNdis = ::CreateFile( NDISUIO_DEVICE_NAME, GENERIC_ALL, 0, NULL, OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL|FILE_FLAG_OVERLAPPED,
(HANDLE)INVALID_HANDLE_VALUE );

三、獲取設備名稱

UCHAR                  cbQueryBuffer[ 1024 ];
PNDISUIO_QUERY_BINDING pQueryBinding;
DWORD                  dwBytesReturned = 0;
pQueryBinding = (PNDISUIO_QUERY_BINDING)&cbQueryBuffer[ 0 ];
pQueryBinding->BindingIndex = 0;
if ( ::DeviceIoControl( hNdis,
IOCTL_NDISUIO_QUERY_BINDING,
(LPVOID)&cbQueryBuffer[ 0 ],
sizeof(NDISUIO_QUERY_BINDING),
(LPVOID)&cbQueryBuffer[ 0 ],
sizeof(cbQueryBuffer),
&dwBytesReturned,
NULL ) == TRUE )
{
TCHAR* pDeviceName = (TCHAR*)( cbQueryBuffer + pQueryBinding->DeviceNameOffset );
}

四、檢測連接狀態

NIC_STATISTICS nicStatistics = { 0 };
DWORD          dwBytesReturned = 0;
BOOL bConnected = FALSE;
nicStatistics.ptcDeviceName = pDeviceName;
if ( ::DeviceIoControl( hNdis,
IOCTL_NDISUIO_NIC_STATISTICS,
NULL,
0,
&nicStatistics,
sizeof(NIC_STATISTICS),
&dwBytesReturned,
NULL ) == TRUE )
{
bConnected = ( nicStatistics.MediaState == MEDIA_STATE_CONNECTED );
}

五、獲取信號強度

// example.
// < -90 : No Signal
// < -81 : Very Low
// < -71 : Low
// < -67 : Good
// < -57 : Very Good
// ...   : Excellent
NDISUIO_QUERY_OID ndisQueryOid = { 0 };
DWORD             dwBytesReturned = 0;
int nDb = 0;
ndisQueryOid.Oid = OID_802_11_RSSI;
ndisQueryOid.ptcDeviceName = pDeviceName;
if ( ::DeviceIoControl( hNdis,
IOCTL_NDISUIO_QUERY_OID_VALUE,
(LPVOID)&ndisQueryOid,
sizeof(ndisQueryOid),
(LPVOID)&ndisQueryOid,
sizeof(ndisQueryOid),
&dwBytesReturned,
NULL ) == TRUE )
{
::CopyMemory( &nDb, &ndisQueryOid.Data[ 0 ], sizeof(ULONG) );
}