RSSI using Windows API

Question

I am trying to get the RSSI using the windows API. So far, I have found this thread saying to use the wlan_intf_opcode_rssi with the WlanQueryInterface function. I am not too sure what the reply means on that thread and was hoping someone could clarify.

All i have managed to understand from the other thread is this:

WlanQueryInterface(hClient,
   &pInfo->InterfaceGuid,
   wlan_intf_opcode_rssi,
   NULL,
   &connectInfoSize,
   (PVOID*)&pConnectInfo,
   &opCode);

I am not sure what to do after here. Any help would be appreciated!

Answer 1

You're passing the wrong type of argument to WlanQueryInterface. MSDN says that the return type for wlan_intf_opcode_rssi is LONG, so you need to pass a pointer to a LONG variable, like this:

LONG rssi = 0;
DWORD dwSizeRssi = sizeof(rssi);
dwResult = WlanQueryInterface(hClient,
    &pIfInfo->InterfaceGuid,
    wlan_intf_opcode_rssi,
    NULL,
    &dwSizeRssi,
    (PVOID *)&rssi,
    &opCode);

if (dwResult == ERROR_SUCCESS)
{
    wprintf(L"RSSI = %u \n", rssi);
}