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# QTextBlockUserData Class Reference
[QtGui module]

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

    #include <QTextBlockUserData>

This class was introduced in Qt 4.1.

- List of all members, including inherited members

### Public Functions

- virtual ~QTextBlockUserData ()

## Detailed Description

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

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

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

See also QTextBlock.

## Member Function Documentation

### QTextBlockUserData::~QTextBlockUserData () `[virtual]`