Solved

Retreiving the IE's Proxy Settings.

Posted on 2001-07-26
7
589 Views
Last Modified: 2010-04-04
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...
0
Comment
Question by:mrk_raj
  • 2
  • 2
  • 2
  • +1
7 Comments
 
LVL 4

Expert Comment

by:StevenB
ID: 6325769
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;
0
 
LVL 3

Accepted Solution

by:
rondi earned 50 total points
ID: 6325878
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
0
 
LVL 3

Expert Comment

by:rondi
ID: 6325879
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
0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 
LVL 22

Expert Comment

by:Mohammed Nasman
ID: 6326905
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
0
 

Author Comment

by:mrk_raj
ID: 6329554

Thank Rondi for sending me the answer & thank you one and all who has sent comments about my quetion.
0
 

Author Comment

by:mrk_raj
ID: 6329558

Thank Rondi for sending me the answer & thank you one and all who has sent comments about my quetion.
0
 
LVL 4

Expert Comment

by:StevenB
ID: 6332593
 ... 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
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

The uses clause is one of those things that just tends to grow and grow. Most of the time this is in the main form, as it's from this form that all others are called. If you have a big application (including many forms), the uses clause in the in…
Objective: - This article will help user in how to convert their numeric value become words. How to use 1. You can copy this code in your Unit as function 2. than you can perform your function by type this code The Code   (CODE) The Im…
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.
This tutorial demonstrates a quick way of adding group price to multiple Magento products.

932 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now