Image Viewer CP Pro ActiveX Control ReferenceMethods CovertTo1bpp Image Viewer CP ActiveX Control ConvertTo1bpp Convert current image to 1 bit Black and White (Bitonal) image. Public Function ConvertTo1bpp() No Parameter No Return ValueExample Visual Basic SyntaxImageViewer1.FileName ="c:\newphoto1.tif"ImageViewer1.ConvertTo1bppImageViewer1.Save "c:\newoutput", "bmp"