Halftone example for Delphi

This example halftones the bitmap with a horizontal pattern and repaints the image.

var
   sRet: Smallint;
   RasterProc: LEADRasterProcess;
begin
   RasterProc:= CreateComObject (CLASS_LEADRasterProcess ) as LEADRasterProcess;
   RasterProc.Halftone (LEADRasterView1.Raster, HALFTONE_PRINT, 0);
   LEADRasterView1.ForceRepaint (sRet);
end;