You could also decide not to use the MainWindow widget at all. If done properly, you could probably use one of the
manager widget classes described in Chapter 8 and still be Motif−compliant. Depending on your application, you
might find this technique easier to deal with than the MainWindow widget.
5.6 Exercises
Based on the material in this chapter, you should be able to do the following exercises:
Modify dynapix.c to have a new PulldownMenu that controls the background color of the pixmap.•
Modify dynapix.c so that it has a command area. The callback for the Command widget should understand
either filenames or color names. If you feel adventurous, try to have it understand both the command file
and the command color. Each command would take a second argument indicating the file or color to use.
•
5 The Main Window5.6 Exercises
106
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