ShowAddNoiseDlg example for Delphi

procedure TForm1.ShowAddNoiseDlg1Click(Sender: TObject); 
var
   nRet: L_INT; 
begin
   LEADDlgImgEffect1.Channel:= CHANNEL_MASTER; 
   LEADDlgImgEffect1.DlgFlags:= DLG_ADDNOISE_SHOW_PREVIEW Or
                           DLG_ADDNOISE_SHOW_TOOL_ZOOMLEVEL; 

   LEADDlgImgEffect1.LEADImage:= LEADImage1; 

   nRet:= LEADDlgImgEffect1.ShowAddNoiseDlg ( Self ); 
   if ( nRet = SUCCESS_DLG_OK ) then
   begin
      LEADImage1.AddNoise ( LEADDlgImgEffect1.Range, 
                LEADDlgImgEffect1.Channel ); 
   end; 
end;