我想和德尔福一起使用Wifi。怎么样？ [英] I want to work with Wifi with Delphi. How?

问题描述

在我的Delphi（Windows Xp）程序中，我想检查可用的WiFi网络。你有什么想法吗？最好的可能是使用MS WlanScan API函数，但我没有找到一个例子。有人可以帮我吗？

In my Delphi (on Windows Xp) program I'd like to check available WiFi networks. Do you have any idea how to do it? Best is probably to use MS WlanScan API function but I did not found an example. Can someone help me?

推荐答案

您可以使用 Native Wifi API ，自Windows Vista和Windows XP起可用。旧版本的Windows不支持。

You can use the Native Wifi API, available since Windows Vista and Windows XP. Older versions of Windows are not supported.

在这个链接，您可以找到一个很好的标题翻译。

In this link you can find a very nice translation of the headers.

我使用这些标题写了这段代码。在Delphi 2007和Windows Vista中测试。

I wrote this code using these headers. Tested in Delphi 2007 and Windows Vista.

program DetectWifiUsingDelphi;

{$APPTYPE CONSOLE}

uses
  Windows,
  SysUtils,
  //TypInfo,
  nduWlanAPI   in 'nduWlanAPI.pas',
  nduWlanTypes in 'nduWlanTypes.pas';


function DOT11_AUTH_ALGORITHM_To_String( Dummy :Tndu_DOT11_AUTH_ALGORITHM):String;
begin
    Result:='';
    case Dummy of
        DOT11_AUTH_ALGO_80211_OPEN          : Result:= '80211_OPEN';
        DOT11_AUTH_ALGO_80211_SHARED_KEY    : Result:= '80211_SHARED_KEY';
        DOT11_AUTH_ALGO_WPA                 : Result:= 'WPA';
        DOT11_AUTH_ALGO_WPA_PSK             : Result:= 'WPA_PSK';
        DOT11_AUTH_ALGO_WPA_NONE            : Result:= 'WPA_NONE';
        DOT11_AUTH_ALGO_RSNA                : Result:= 'RSNA';
        DOT11_AUTH_ALGO_RSNA_PSK            : Result:= 'RSNA_PSK';
        DOT11_AUTH_ALGO_IHV_START           : Result:= 'IHV_START';
        DOT11_AUTH_ALGO_IHV_END             : Result:= 'IHV_END';
    end;
End;

function DOT11_CIPHER_ALGORITHM_To_String( Dummy :Tndu_DOT11_CIPHER_ALGORITHM):String;
Begin
    Result:='';
    case Dummy of
    DOT11_CIPHER_ALGO_NONE      : Result:= 'NONE';
    DOT11_CIPHER_ALGO_WEP40     : Result:= 'WEP40';
    DOT11_CIPHER_ALGO_TKIP      : Result:= 'TKIP';
    DOT11_CIPHER_ALGO_CCMP      : Result:= 'CCMP';
    DOT11_CIPHER_ALGO_WEP104    : Result:= 'WEP104';
    DOT11_CIPHER_ALGO_WPA_USE_GROUP : Result:= 'WPA_USE_GROUP OR RSN_USE_GROUP';
    //DOT11_CIPHER_ALGO_RSN_USE_GROUP : Result:= 'RSN_USE_GROUP';
    DOT11_CIPHER_ALGO_WEP           : Result:= 'WEP';
    DOT11_CIPHER_ALGO_IHV_START     : Result:= 'IHV_START';
    DOT11_CIPHER_ALGO_IHV_END       : Result:= 'IHV_END';
    end;
End;

procedure Scan();
const
WLAN_AVAILABLE_NETWORK_INCLUDE_ALL_ADHOC_PROFILES =$00000001;
var
  hClient              : THandle;
  dwVersion            : DWORD;
  ResultInt            : DWORD;
  pInterface           : Pndu_WLAN_INTERFACE_INFO_LIST;
  i                    : Integer;
  j                    : Integer;
  pAvailableNetworkList: Pndu_WLAN_AVAILABLE_NETWORK_LIST;
  pInterfaceGuid       : PGUID;
  SDummy               : string;
begin
  ResultInt:=WlanOpenHandle(1, nil, @dwVersion, @hClient);
  if  ResultInt<> ERROR_SUCCESS then
  begin
     WriteLn('Error Open CLient'+IntToStr(ResultInt));
     Exit;
  end;

  ResultInt:=WlanEnumInterfaces(hClient, nil, @pInterface);
  if  ResultInt<> ERROR_SUCCESS then
  begin
     WriteLn('Error Enum Interfaces '+IntToStr(ResultInt));
     exit;
  end;

  for i := 0 to pInterface^.dwNumberOfItems - 1 do
  begin
   Writeln('Interface       ' + pInterface^.InterfaceInfo[i].strInterfaceDescription);
   WriteLn('GUID            ' + GUIDToString(pInterface^.InterfaceInfo[i].InterfaceGuid));
   Writeln('');
   pInterfaceGuid:= @pInterface^.InterfaceInfo[pInterface^.dwIndex].InterfaceGuid;

      ResultInt:=WlanGetAvailableNetworkList(hClient,pInterfaceGuid,WLAN_AVAILABLE_NETWORK_INCLUDE_ALL_ADHOC_PROFILES,nil,pAvailableNetworkList);
      if  ResultInt<> ERROR_SUCCESS then
      begin
         WriteLn('Error WlanGetAvailableNetworkList '+IntToStr(ResultInt));
         Exit;
      end;

        for j := 0 to pAvailableNetworkList^.dwNumberOfItems - 1 do
        Begin
           WriteLn(Format('Profile         %s',[WideCharToString(pAvailableNetworkList^.Network[j].strProfileName)]));
           SDummy:=PChar(@pAvailableNetworkList^.Network[j].dot11Ssid.ucSSID);
           WriteLn(Format('NetworkName     %s',[SDummy]));
           WriteLn(Format('Signal Quality  %d ',[pAvailableNetworkList^.Network[j].wlanSignalQuality])+'%');
           //SDummy := GetEnumName(TypeInfo(Tndu_DOT11_AUTH_ALGORITHM),integer(pAvailableNetworkList^.Network[j].dot11DefaultAuthAlgorithm)) ;
           SDummy:=DOT11_AUTH_ALGORITHM_To_String(pAvailableNetworkList^.Network[j].dot11DefaultAuthAlgorithm);
           WriteLn(Format('Auth Algorithm  %s ',[SDummy]));
           SDummy:=DOT11_CIPHER_ALGORITHM_To_String(pAvailableNetworkList^.Network[j].dot11DefaultCipherAlgorithm);
           WriteLn(Format('Auth Algorithm  %s ',[SDummy]));
           Writeln('');
        End;
  end;

  WlanCloseHandle(hClient, nil);

end;
begin
  try
    Scan();
    Readln;
  except
    on E:Exception do
      Writeln(E.Classname, ': ', E.Message);
  end;
end.

alt text http://i33.tinypic.com/2z83ubt.jpg

再见。

这篇关于我想和德尔福一起使用Wifi。怎么样？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！