Classes used to provide online-help for applications.
These classes provide online-help for 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.
The QToolTip class provides tool tips (balloon help) for any widget.
The QWhatsThis class provides a simple description of any widget, i.e. answering the question “What’s This?”.
The QStatusBar class provides a horizontal bar suitable for presenting status information.
The QHelpEvent class provides an event that is used to request helpful information about a particular point in a widget.
The QStatusTipEvent class provides an event that is used to show messages in a status bar.
The QWhatsThisClickedEvent class provides an event that can be used to handle hyperlinks in a “What’s This?” text.
© 2021 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.