Определить, что WIN.INI был изменен

{ 
  An application sends the WM_WININICHANGE message to all top-level windows 
  after making a change to the WIN.INI file. 
  The SystemParametersInfo function sends this message after an application uses the 
  function to change a setting in WIN.INI. 
}

 type

   TForm1 = class
(TForm)
   private

    { Private declarations }
    procedure
 WMWinIniChange(var
 Message
: TMessage); message
 WM_WININICHANGE;
    // or WM_SETTINGCHANGE 
  end
;

 var

   Form1: TForm1;

 implementation


 {$R *.dfm}

 procedure
 TForm1.WMWinIniChange(var
 Message
: TMessage);
 var

   status: Bool;
   Area: TRect;
 begin

   inherited
;
   case
 Message
.wParam of

       // Example: Detect when the screen saver is enabled/disabled 
      SPI_SETSCREENSAVEACTIVE:
       begin

         SystemParametersInfo(SPI_GETSCREENSAVEACTIVE, 0, @status, 0);
         if
 Status = True then

           ShowMessage('Screensaver has been enabled.')
         else

           ShowMessage('Screensaver has been disabled.');
       end
;
   end
;
 end
;

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