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# QDomDocumentType Class Reference
[XML module]

The QDomDocumentType class is the representation of the DTD in the document tree. More...

All the functions in this class are reentrant when Qt is built with thread support.

`#include <qdom.h>`

Inherits QDomNode.

List of all member functions.

## Public Members

- QDomDocumentType ()
- QDomDocumentType ( const QDomDocumentType & n )
- QDomDocumentType & operator= ( const QDomDocumentType & n )
- ~QDomDocumentType ()
- virtual QString name () const
- virtual QDomNamedNodeMap entities () const
- virtual QDomNamedNodeMap notations () const
- virtual QString publicId () const
- virtual QString systemId () const
- virtual QString internalSubset () const
- virtual QDomNode::NodeType nodeType () const
- virtual bool isDocumentType () const

## Detailed Description

The QDomDocumentType class is the representation of the DTD in the document tree.

The QDomDocumentType class allows read-only access to some of the data structures in the DTD: it can return a map of all entities() and notations(). In addition the function name() returns the name of the document type as specified in the <!DOCTYPE name> tag. This class also provides the publicId(), systemId() and internalSubset() functions.

See also QDomDocument and XML.

## Member Function Documentation

### QDomDocumentType::QDomDocumentType ()

Creates an empty QDomDocumentType object.

### QDomDocumentType::QDomDocumentType ( const QDomDocumentType & n )

Constructs a copy of n.

The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode().

### QDomDocumentType::~QDomDocumentType ()

Destroys the object and frees its resources.

### QDomNamedNodeMap QDomDocumentType::entities () const`[virtual]`

Returns a map of all entities described in the DTD.

### QString QDomDocumentType::internalSubset () const`[virtual]`

Returns the internal subset of the document type or QString::null if there is no internal subset.

See also publicId() and systemId().

### bool QDomDocumentType::isDocumentType () const`[virtual]`

This function overloads QDomNode::isDocumentType().

See also nodeType() and QDomNode::toDocumentType().

Reimplemented from QDomNode.

### QString QDomDocumentType::name () const`[virtual]`

Returns the name of the document type as specified in the <!DOCTYPE name> tag.

See also nodeName().

### QDomNode::NodeType QDomDocumentType::nodeType () const`[virtual]`

Returns DocumentTypeNode.

See also isDocumentType() and QDomNode::toDocumentType().

Reimplemented from QDomNode.

### QDomNamedNodeMap QDomDocumentType::notations () const`[virtual]`

Returns a map of all notations described in the DTD.

### QDomDocumentType & QDomDocumentType::operator= ( const QDomDocumentType & n )

Assigns n to this document type.

The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode().

### QString QDomDocumentType::publicId () const`[virtual]`

Returns the public identifier of the external DTD subset or QString::null if there is no public identifier.

See also systemId(), internalSubset(), and QDomImplementation::createDocumentType().

### QString QDomDocumentType::systemId () const`[virtual]`

Returns the system identifier of the external DTD subset or QString::null if there is no system identifier.

See also publicId(), internalSubset(), and QDomImplementation::createDocumentType().

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