ShowMaxFilterDlg example for Delphi

procedure TForm1.ShowMaxFilterDlg1Click(Sender: TObject); 
var
   nRet: L_INT; 
begin
   LEADDlgImgEffect1.Dimension:= 10; 
   LEADDlgImgEffect1.DlgFlags:= DLG_MAXFILTER_SHOW_PREVIEW Or
                              DLG_MAXFILTER_SHOW_TOOL_ZOOMLEVEL; 

   LEADDlgImgEffect1.LEADImage:= LEADImage1; 

   nRet:= LEADDlgImgEffect1.ShowMaxFilterDlg ( Self ); 
   if ( nRet = SUCCESS_DLG_OK ) then
   begin
      LEADImage1.MaxFilter ( LEADDlgImgEffect1.Dimension ); 
   end; 
end;