Proxy Setting Source

This is Proxy Setting source...

Usage... 



unit uniProxySetting;

interface

uses
  Windows, Wininet, Registry;

const
  INTERNET_PER_CONN_FLAGS               = 1;
  INTERNET_PER_CONN_PROXY_SERVER        = 2;
  INTERNET_PER_CONN_PROXY_BYPASS        = 3;
  INTERNET_PER_CONN_AUTOCONFIG_URL      = 4;
  INTERNET_PER_CONN_AUTODISCOVERY_FLAGS = 5;

  PROXY_TYPE_DIRECT         = $00000001;
  PROXY_TYPE_PROXY          = $00000002;

  INTERNET_OPTION_PER_CONNECTION_OPTION   = 75;

type
   INTERNET_PER_CONN_OPTION = record
      dwOption: DWORD;
      Value: record
         case Integer of
            1: (dwValue: DWORD);
            2: (pszValue: PAnsiChar);
            3: (ftValue: TFileTime);
      end;
   end;
   LPINTERNET_PER_CONN_OPTION = ^INTERNET_PER_CONN_OPTION;
   INTERNET_PER_CONN_OPTION_LIST = record
      dwSize: DWORD;
      pszConnection: LPTSTR;
      dwOptionCount: DWORD;
      dwOptionError: DWORD;
      pOptions: LPINTERNET_PER_CONN_OPTION;
   end;
   LPINTERNET_PER_CONN_OPTION_LIST = ^INTERNET_PER_CONN_OPTION_LIST;

   procedure SetProxyNew(Con, ProxyServer: String);
   procedure DisableProxyNew(Con: String);

   Procedure SetProxy(const Server: String);
    Procedure DisableProxy;

implementation

Procedure SetProxy(const Server: String);
var
  Reg : TRegistry;
begin
  Reg := TRegistry.Create;
  Reg.OpenKey('Software\Microsoft\Windows\CurrentVersion\Internet Settings',False);
  Reg.WriteString('ProxyServer',Server);
  Reg.WriteBool('ProxyEnable',True);
  Reg.CloseKey;
  Reg.Free;
  InternetSetOption(0, INTERNET_OPTION_SETTINGS_CHANGED, 0, 0);
end;

Procedure DisableProxy;
var
  Reg : TRegistry;
begin
  Reg := TRegistry.Create;
  Reg.OpenKey('Software\Microsoft\Windows\CurrentVersion\Internet Settings',False);
  Reg.WriteBool('ProxyEnable',False);
  Reg.CloseKey;
  Reg.Free;
  InternetSetOption(0, INTERNET_OPTION_SETTINGS_CHANGED, 0, 0);
end;

procedure SetProxyNew(Con, ProxyServer: String);
var
   list: INTERNET_PER_CONN_OPTION_LIST;
   dwBufSize: DWORD;
   Options: array[1..2] of INTERNET_PER_CONN_OPTION;

begin
   dwBufSize := sizeof(list);
   list.dwSize := sizeof(list);
   list.pszConnection := pchar(Con);
   list.dwOptionCount := High(Options);
   Options[1].dwOption := INTERNET_PER_CONN_FLAGS;
   Options[1].Value.dwValue := PROXY_TYPE_PROXY;
   Options[2].dwOption := INTERNET_PER_CONN_PROXY_SERVER;
   Options[2].Value.pszValue := PansiChar(ProxyServer);
   list.pOptions := @Options;
   InternetSetOption(nil, INTERNET_OPTION_PER_CONNECTION_OPTION, @list, dwBufSize);
   InternetSetOption(nil, INTERNET_OPTION_REFRESH, nil, 0);
end;

procedure DisableProxyNew(Con: String);
var
   list: INTERNET_PER_CONN_OPTION_LIST;
   dwBufSize: DWORD;
   Options: array[1..2] of INTERNET_PER_CONN_OPTION;

begin
   dwBufSize := sizeof(list);
   list.dwSize := sizeof(list);
   list.pszConnection := pchar(Con);
   list.dwOptionCount := High(Options); // the highest index of the array (in this case 3)
   Options[1].dwOption := INTERNET_PER_CONN_FLAGS;
   Options[1].Value.dwValue := PROXY_TYPE_DIRECT;
   Options[2].dwOption := INTERNET_PER_CONN_PROXY_SERVER;
   Options[2].Value.pszValue := PansiChar('');
   list.pOptions := @Options;
   InternetSetOption(nil, INTERNET_OPTION_PER_CONNECTION_OPTION, @list, dwBufSize);
   InternetSetOption(nil, INTERNET_OPTION_REFRESH, nil, 0);
end;

end.