OMG!OCRCAL has following near-to-unique features: * main input mode is handwriting (or mousewriting? however); keypad provided for accessibility * fully customizable (using almost human-readable format) character shapes used both for image recognition and for output * calculation performed on character strings (no conversion to numbers) using good old school methods as I remember them a decade later * the only graphics output function is LineTo, no buttons or menus used See UserGuide.htm for more information.