ShowMosaicDlg example for Delphi

procedure TForm1.ShowMosaicDlg1Click(Sender: TObject); 
var
   nRet: L_INT; 
begin
   LEADDlgImgEffect1.DlgFlags:= DLG_MOSAIC_SHOW_PREVIEW Or
                              DLG_MOSAIC_SHOW_TOOL_ZOOMLEVEL; 

   LEADDlgImgEffect1.LEADImage:= LEADImage1; 

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