Creating Custom Widgets

• Customizing Qt Widgets
• Subclassing QWidget
• Integrating Custom Widgets with Qt Designer
• Double Buffering

This chapter explains how to create custom widgets using Qt. Custom widgets can be created by subclassing an existing Qt widget or by subclassing QWidget directly. We will demonstrate both approaches, and we will also see how to integrate a custom widget with Qt Designer so that it can be used just like a built-in Qt widget. We will round off the chapter by presenting a custom widget that uses a powerful technique for eliminating flicker: double buffering.