Underlay example for C++ Builder

This example loads a bitmap into LEADRasterView2 and uses it as a tiled underlay for LEADRasterView1.

   LEADRasterIO* pRasterIO= NULL;
   LEADRasterProcess* pRasterProc= NULL;

   CoCreateInstance(CLSID_LEADRasterIO, NULL, CLSCTX_ALL, IID_ILEADRasterIO, (void**)&pRasterIO);
     CoCreateInstance(CLSID_LEADRasterProcess, NULL, CLSCTX_ALL, IID_ILEADRasterProcess, (void**)&pRasterProc);

   pRasterIO->Load (LEADRasterView2->Raster, AnsiToOLESTR("v:\\images\\ulay2.bmp"), 0, 0, 1);
   pRasterProc->Underlay (LEADRasterView1->Raster, LEADRasterView2->Raster, UNDERLAY_TILE);
   LEADRasterView1->ForceRepaint ();

   pRasterProc-> Release( );
   pRasterIO-> Release( );