Designed for serious OS/2 developers, this guide explains how to develop 32-bit OS/2 2.0 and 2.1 operating systems. It describes the base system and control program presentation manager programming, and includes a diskette containing 39 sample programs. Drawing on their combined experience in supporting and developing OS/2, the authors identify and solve problems which a user is likely to encounter. Their step-by-step approach alleviates the difficulties involved in learning to develop C programs under OS/2.