HP 3000 Manuals HP 3000 Manuals
Chapter 9 Motif Applications This chapter explains how to create COBOL applications that run under Motif by programming to the OSF/Motif Applications Programming Interface (API). Programming to the Motif API enables full control over the graphical environment but does require specialized skills. You need a detailed knowledge of Motif, X Toolkit and Xlib as well as an understanding of BY REFERENCE, BY VALUE and BY CONTENT parameters, recursion, USAGE POINTER, USAGE PROCEDURE POINTER and object oriented programming techniques. We recommend that you consider using Panels Version 2 or Dialog System instead. See the chapter Comparison of Screen Handling Methods for more information. Using one of these enables you to create programs which are portable to other GUI environments, such as Presentation Manger on OS/2, and Microsoft Windows. See the chapter Portability Issues for details of other factors affecting portability. This system includes a simple Motif program which is provided as an example of some of the methods described in this chapter.