class QTextBlockUserData

The QTextBlockUserData class is used to associate custom data with blocks of text. More…

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Detailed Description

QTextBlockUserData provides an abstract interface for container classes that are used to associate application-specific user data with text blocks in a QTextDocument .

Generally, subclasses of this class provide functions to allow data to be stored and retrieved, and instances are attached to blocks of text using setUserData() . This makes it possible to store additional data per text block in a way that can be retrieved safely by the application.

Each subclass should provide a reimplementation of the destructor to ensure that any private data is automatically cleaned up when user data objects are deleted.

See also

QTextBlock