Help System
 
These classes provide for all forms of online-help in your application, with three levels of detail:
- Tool Tips and Status Bar message - flyweight help, extremely brief, entirely integrated in the user interface, requiring little or no user interaction to invoke.
- What's This? - lightweight, but can be a three-paragraph explanation.
- Online Help - can encompass any amount of information, but is typically slower to call up, somewhat separated from the user's work, and often users feel that using online help is a digression from their real task.
 
| QHelpEvent | Event that is used to request helpful information about a particular point in a widget | 
| QStatusBar | Horizontal bar suitable for presenting status information | 
| QStatusTipEvent | Event that is used to show messages in a status bar | 
| QToolTip | Tool tips (balloon help) for any widget | 
| QWhatsThis | Simple description of any widget, i.e. answering the question "What's This?" | 
| QWhatsThisClickedEvent | Event that can be used to handle hyperlinks in a "What's This?" text |