whats new ¦  programming tips ¦  indy articles ¦  intraweb articles ¦  informations ¦  links ¦  interviews
 misc ¦  tutorials ¦  Add&Win Game

Tips (1547)

Database (90)
Files (137)
Forms (107)
Graphic (115)
IDE (21)
Indy (5)
Internet / LAN (131)
IntraWeb (0)
Math (76)
Misc (127)
Multimedia (45)
Objects/
ActiveX (51)

OpenTools API (3)
Printing (35)
Strings (83)
System (268)
VCL (243)

Top15

Tips sort by
component


Search Tip

Add new Tip

Add&Win Game

Advertising

42 Visitors Online


 
...prevent Ctrl+Alt+DEL?
Autor: Simon Grossenbacher
Homepage: http://www.swissdelphicenter.ch
[ Print tip ]  

Tip Rating (9):  
     


const
  SPI_SCREENSAVERRUNNING = 97;
var
  OldValue: Longbool;
  {on}
  SystemParametersInfo(SPI_SCREENSAVERRUNNING, Word(True), @OldValue, 0);
  {off}
  SystemParametersInfo(SPI_SCREENSAVERRUNNING, Word(False), @OldValue, 0);
{
  Note: Runs only on Windows 95/98
  Bemerkung: Läuft nur unter Windows 95/98
}


{********************************************************}


{ Disable the TaskManager on Win NT systems (2000/XP) : }
{ (C) by Delphi.About }

uses
  
Registry;

procedure EnableCTRLALTDEL(YesNo : boolean);
const
sRegPolicies = '\Software\Microsoft\Windows\CurrentVersion\Policies';
begin
  with 
TRegistry.Create do
  try
    
RootKey:=HKEY_CURRENT_USER;
    if OpenKey(sRegPolicies+'\System\',True) then
    begin
      case 
YesNo of
        
False:
          begin
            
WriteInteger('DisableTaskMgr',1);
          end;
        True:
          begin
            
WriteInteger('DisableTaskMgr',0);
          end;
      end;
    end;
    CloseKey;
    if OpenKey(sRegPolicies+'\Explorer\',True) then
    begin
      case 
YesNo of
        
False:
          begin
            
WriteInteger('NoChangeStartMenu',1);
            WriteInteger('NoClose',1);
            WriteInteger('NoLogOff',1);
          end;
        True:
          begin
            
WriteInteger('NoChangeStartMenu',0);
            WriteInteger('NoClose',0);
            WriteInteger('NoLogOff',0);
          end;
      end;
    end;
    CloseKey;
  finally
    
Free;
  end;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
    
EnableCTRLALTDEL(true);
end;

 

Rate this tip:

poor
very good


Copyright © by SwissDelphiCenter.ch
All trademarks are the sole property of their respective owners