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# QXmlDeclHandlerInterface Class Reference
[com.trolltech.qt.xml module]

The `QXmlDeclHandler` class provides an interface to report declaration content of XML data. More...

Inherited by `QXmlDeclHandler`.

## Detailed Description

The `QXmlDeclHandler` class provides an interface to report declaration content of XML data.

You can set the declaration handler with QXmlReader::setDeclHandler().

This interface is based on the SAX2 extension DeclHandler.

The interface provides `attributeDecl`, `internalEntityDecl` and `externalEntityDecl` functions.

See also `QXmlDTDHandler`, `QXmlContentHandler`, `QXmlEntityResolver`, `QXmlErrorHandler`, `QXmlLexicalHandler`, and Introduction to SAX2.