CHAPTER 9Providing Help
Sometimes users need a helping hand. With Qt you can give them the instruction they're looking for in a variety of ways: wizards, tooltips, status bar messages, and pointers to product documentation, to name a few.
When considering how to add help-related features to your application, keep in mind that there's much more to it than simply responding to the F1 key (the de facto mechanism for displaying the application's help window). Assistance is most effective when it's an integral yet nonintrusive part of your entire application.
By using a good design that clearly reflects both what users are currently doing and where in the process they are, you can dramatically reduce the need for help. Some of the tools and principles ...