ShowUnderlayDlg example for C++ Builder

void __fastcall TForm1::ShowUnderlayDlg1Click(TObject *Sender) 
{
   L_INT i; 
   L_INT nRet; 
   AnsiString FileNames[3]= { "e:\\image1.jpg", "e:\\image2.jpg", "e:\\image3.jpg" };

   LEADDlgImgEffect1->ItemsCount = 3; 

   for ( i= 0; i < 3; i ++ ) 
   {
      LEADImage2->LoadStamp ( FileNames[i] ); 
      LEADDlgImgEffect1->ItemDescription [i]= IntToStr(i); 
      LEADDlgImgEffect1->ItemFileName [i]= FileNames[i]; 
      LEADDlgImgEffect1->ItemBitmap[i]= LEADImage2->Bitmap; 
   }
   LEADDlgImgEffect1->SelectedBitmapIndex = 0; 
   LEADDlgImgEffect1->UnderlayFlags = UB_TILE; 
   LEADDlgImgEffect1->DlgFlags = DLG_UNDERLAY_SHOW_PREVIEW |
                        DLG_UNDERLAY_SHOW_TOOL_ZOOMLEVEL; 

   LEADDlgImgEffect1->LEADImage = LEADImage1; 
   nRet= LEADDlgImgEffect1->ShowUnderlayDlg ( this ); 
   if ( nRet == SUCCESS_DLG_OK ) 
   {
      LEADImage1->Underlay ( LEADDlgImgEffect1->SelectedBitmap, 
             LEADDlgImgEffect1->UnderlayFlags ); 
   }
}