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# QKbdDriverPlugin Class Reference
[QtGui module]

The QKbdDriverPlugin class is an abstract base class for keyboard driver plugins. More...

    #include <QKbdDriverPlugin>

Inherits QObject.

- List of all members, including inherited members

### Public Functions

- QKbdDriverPlugin ( QObject * parent = 0 )
- ~QKbdDriverPlugin ()
- virtual QWSKeyboardHandler * create ( const QString & key, const QString & device ) = 0
- virtual QStringList keys () const = 0

- 28 public functions inherited from QObject

### Additional Inherited Members

- 1 property inherited from QObject
- 1 public slot inherited from QObject
- 1 signal inherited from QObject
- 4 static public members inherited from QObject
- 7 protected functions inherited from QObject

## Detailed Description

The QKbdDriverPlugin class is an abstract base class for keyboard driver plugins.

Note that this class is only available in Qtopia Core.

QKbdDriverPlugin is a simple plugin interface that makes it easy to create custom keyboard drivers that can be loaded dynamically into applications using the QKbdDriverFactory class.

Writing a custom keyboard driver plugin is achieved by subclassing QKbdDriverPlugin, reimplementing the pure virtual keys() and create() functions, and exporting the class using the Q_EXPORT_PLUGIN2() macro (See How to Create Qt Plugins for details).

See also QKbdDriverFactory, QWSKeyboardHandler, and Character Input.

## Member Function Documentation

### QKbdDriverPlugin::QKbdDriverPlugin ( QObject * parent = 0 )

Constructs a keyboard driver plugin with the given parent.

Note that this constructor is invoked automatically by the Q_EXPORT_PLUGIN2() macro, so there is no need for calling it explicitly.

### QKbdDriverPlugin::~QKbdDriverPlugin ()

Destroys the keyboard driver plugin.

Note that Qt destroys a plugin automatically when it is no longer used, so there is no need for calling the destructor explicitly.

### QWSKeyboardHandler * QKbdDriverPlugin::create ( const QString & key, const QString & device ) `[pure virtual]`

Creates a driver matching the type specified by the given key and device parameters. Keys are case-insensitive.

See also keys().

### QStringList QKbdDriverPlugin::keys () const `[pure virtual]`

Returns the list of valid keys, i.e. the keyboard drivers supported by this plugin.

Qtopia Core currently supports the following drivers by default: `SL5000`, `Yopy`, `VR41xx`, `TTY` and `USB`.

See also create().