In the fourth installment of our series on cross-platform GUI programming with the Qt C++ toolkit, we are going to write a custom widget using Qt. The widget in question is a "scribble" widget (see Figure 1) - that is, the drawing area of a simple paint program

In this article I will visit the mechanics of namespaces and anonymous namespaces and explain how they are used to solve some of the problems associated with linking C++ programs. Then I will move on to explain how they can also be used to provide context.

This article reports on an experimental study, carried out during the 2004 ACCU conference, that investigates the consequences of a limited capacity short term memory on subjects' performance in some of the tasks needed to comprehend short sequences of code.

Part 3 - An Example Using Foundation