Mega Code Archive
How to establish a connection to the internet
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Title: How to establish a connection to the internet
unit Unit1;
This unit shows how you can establish a connection to the internet without any
user interaction.
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
Button2: TButton;
edtEntry: TEdit; // holds the name of the connection, e.g. 'bluewin'
edtUser: TEdit; // the username for the above connection
edtPass: TEdit; // and the password
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
uses shellapi;
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
var
cmd, par, fil, dir: PChar;
begin
// establish the connection
// rasdial.exe entryname username password
cmd := 'open';
fil := 'rasdial.exe';
par := PChar(edtEntry.Text + ' ' + edtUser.Text + ' ' + edtPass.Text);
dir := 'C:';
// call rasdial.exe with Shellexecute
ShellExecute(Self.Handle, cmd, fil, par, dir, SW_SHOWMINNOACTIVE);
end;
procedure TForm1.Button2Click(Sender: TObject);
var
cmd, par, fil, dir: PChar;
begin
// disconnect the connection to the Internet
cmd := 'open';
fil := 'rasdial.exe';
par := PChar(edtEntry.Text + ' /DISCONNECT');
dir := 'C:';
ShellExecute(Self.Handle, cmd, fil, par, dir, SW_SHOWMINNOACTIVE);
end;
end.
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