This book describes how to write applications using the Motif toolkit from the Open Software Foundation (OSF). The Motif toolkit is based on the X Toolkit Intrinsics (Xt),which is the standard mechanism on which many of the toolkits written for the X Window System are based. Xt provides a library of user-interface objects called widgets and gadgets, which provide a convenient interface for creating and manipulating X windows,colormaps, events, and other cosmetic attributes of the display. In short, widgets can be thought of as building blocks that the programmer uses to construct a complete
