Building Turbo Pascal Libraries: Data Entry Tools

This guide demonstrates the techniques needed to create and use specialized function libraries in the Turbo Pascal environment. It presents interfaces for database applications through a series of key-by-key tutorials, a command summary, and listings of source codes. Jeremy Soybel offers specific solutions to everyday data entry and validation problems, using procedures that are workable in graphics mode and which enable programmers to specify "context sensitive" help for each prompt. There is also a library of routines for improving input speed and efficiency for text, date and boolean data, as well as for simplified data retrieval and error handling.