Overview

The previous chapters discussed the tools needed to develop standard windowing applications using the MWAPI. This chapter brings these methods and concepts together into a functional application. The checking account database application was designed to reinforce what has been taught and demonstrated, show how objects can be designed to work with each other, and introduce the capability for dynamic binding. Figures of the interfaces and source code are included so you can follow along and see how the application was created.

The figures in the previous chapters were created with MS Windows 3.1 as the underlying windowing platform. They maintain the environment's look-and-feel characteristics. The figures in this chapter use MS Windows NT as the platform, and inherit its respective look-and-feel characteristics. The syntax of the source code is exactly the same for both, demonstrating how the look and feel of the underlying platform is maintained regardless of the platform. Figure 9.1 shows the main interface into the application.

Figure 9.1: Check Book Interface

The positioning of the elements of the window shown in Figure 9.1 demonstrates a coherence of order: the checking label follows the amount that follows the check number, and "date" and "reconciled" are positioned below each other. Note that the source code specifies the elements and the values of their POS attributes in random order. If all the definitions to be used when an interface is created are defined, the order used for organizing the arguments is not significant. When the statements are merged into...