Grayscale example for C++ Builder

This example converts the bitmap to 12-bit grayscale.

   LEADRasterProcess* pRasterProc= NULL;

     CoCreateInstance(CLSID_LEADRasterProcess, NULL, CLSCTX_ALL, IID_ILEADRasterProcess, (void**)&pRasterProc);
   pRasterProc->Grayscale (LEADRasterView1->Raster, 12);  //Grayscale image to 12-bit
   pRasterProc-> Release( );