SpatialFilter example for C++ Builder
This example applies Laplacian line detection and redisplays the image.
   LEADRasterProcess* pRasterProc= NULL;
     CoCreateInstance(CLSID_LEADRasterProcess, NULL, CLSCTX_ALL, IID_ILEADRasterProcess, (void**)&pRasterProc);
   pRasterProc->SpatialFilter (LEADRasterView1->Raster, FLT_LAPLACE_1);
   LEADRasterView1->ForceRepaint ();
   pRasterProc-> Release( );