Designing Qt-Style C++ APIs

I just found an article worth reading on designing good C++ APIs: http://doc.trolltech.com/qq/qq13-apis.html Here are the main topics:

• Six Characteristics of Good APIs
• The Convenience Trap
• The Boolean Parameter Trap
• Static Polymorphism
• The Art of Naming
• Pointers or References?
• Case Study: QProgressBar
• How to Get APIs Right