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mrk_raj

asked on

Retreiving the IE's Proxy Settings.

Hai Experts,

How can I retreive the Intenet Settings ( details of Proxy settings.. ) found in the Internet Explorer through a Delphi application?. Is there any Windows API for this?.
Please help...
Avatar of StevenB
StevenB

This might help:



procedure GetDefaultProxyServer(var Server, ByPass: string; var Port: Integer);
const
  BUF_SIZE: DWORD = 500;
var
  ProxyInfo: PInternetProxyInfo;
  Buffer: Pointer;
begin
  GetMem(Buffer, BUF_SIZE);
  try
    if not InternetQueryOption(nil, INTERNET_OPTION_PROXY, Buffer, BUF_SIZE) then
      RaiseLastWin32Error;
    ProxyInfo := Buffer;
    ByPass := ProxyInfo^.lpszProxyBypass;
    if (ProxyInfo^.lpszProxy = '') then begin
      Server := '';
      Port := 0;
    end else with TStringTokenizer.Create(ProxyInfo^.lpszProxy, [':']) do try
      Server := NextToken;
      if HasMoreTokens then
        Port := StrToInt(NextToken)
      else
        Port := 0;
    finally
      Free;
    end;
  finally
    FreeMem(Buffer);
  end;
end;
ASKER CERTIFIED SOLUTION
Avatar of rondi
rondi

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Use TRegistry.

I think IE's proxy settings are under HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings

The values in this registry key should tell you everything,
the proxy name, port, whether it's enabled, the protocol..
etc.

Code snippet:
-----------------------------------------------------

type
  TMyProxySettings = record
    Server: string[255];
    Port: integer;
    Enabled: boolean;
  end;

function GetProxySettings: TMyProxySettings;
const
  IE_REG_KEY = 'Software\Microsoft\Windows\CurrentVersion\Internet Settings';
  DEFAULT_PORT: integer = 80;
var
  reg: TRegistry;
  cp: integer;
  s: string;
begin
  reg := TRegistry.Create;
  try
    with reg do
    begin
      RootKey := HKEY_CURRENT_USER;
      if OpenKey(IE_REG_KEY,false) then
      begin
        //get server name & port (usually combined)
        s := ReadString('ProxyServer','');
        cp := Pos(':',s);
        if cp > 0 then
        begin
          result.Server := Copy(s,1,cp-1);
          result.Port := StrToIntDef(Copy(s,cp+1,length(s)-cp),DEFAULT_PORT);
        end
        else
        begin
          result.Server := s;
          result.Port := DEFAULT_PORT;
        end;
        //get proxy enabled state
        cp := ReadInteger('ProxyEnable',0);
        result.Enabled := cp > 0;
        //all done
        CloseKey;
      end
      else
      begin
        result.Server := '';
        result.Port := DEFAULT_PORT;
      end;
    end;
  finally
    reg.free;
  end;
end;

--------------------------------------------------------

Hope this helps,

rondi
Hello

 I post a comment in your previous quesiotn about the same thing, u posted ur quesiont twice, here's what i wrote there

procedure TForm1.Button1Click(Sender: TObject);
var
 Reg: TRegistry;
begin
 Reg := TRegistry.Create;
 Reg.RootKey := HKEY_CURRENT_USER;
 Reg.OpenKey('Software\Microsoft\Windows\CurrentVersion\Internet Settings',false);
 Edit1.Text :=Reg.ReadString('ProxyServer');
end;

Best regards
Mohammed Nasman
Avatar of mrk_raj

ASKER


Thank Rondi for sending me the answer & thank you one and all who has sent comments about my quetion.
Avatar of mrk_raj

ASKER


Thank Rondi for sending me the answer & thank you one and all who has sent comments about my quetion.
 ... however in answer to your question "Is there any Windows API for this?" the answer is "yes". If you want to investigate InternetQueryOption and rest of the Internet API further can I recommend this link.

http://msdn.microsoft.com/library/default.asp?url=/workshop/networking/wininet/overview/common.asp