QPaintEvent(3qt)

NAME
QPaintEvent - Event parameters for paint events

#include <qevent.h>

Inherits QEvent.

  Public Members
QPaintEvent ( const QRegion & paintRegion, bool erased = TRUE )
QPaintEvent ( const QRect & paintRect, bool erased = TRUE )
const QRect& rect () const
const QRegion& region () const
bool erased () const

DESCRIPTION
The QPaintEvent class contains event parameters for paint events.

Paint events are sent to widgets that need to update themselves, for instance when a part of a widget is exposed because an overlying widget is moved away.

The event handler QWidget::paintEvent() receives paint events.

See also QPainter, QWidget::update() and QWidget::repaint().

Examples: qtimage/qtimage.cpp grapher/grapher.cpp drawlines/connect.cpp xform/xform.cpp drawdemo/drawdemo.cpp progress/progress.cpp qmag/qmag.cpp splitter/splitter.cpp desktop/desktop.cpp trivial/trivial.cpp picture/picture.cpp

MEMBER FUNCTION DOCUMENTATION

QPaintEvent::QPaintEvent ( const QRect & paintRect, bool erased=TRUE = TRUE )
Constructs a paint event object with the rectangle that should be updated.

QPaintEvent::QPaintEvent ( const QRegion & paintRegion, bool erased=TRUE = TRUE )
Constructs a paint event object with the region that should be updated.

bool QPaintEvent::erased () const
Returns whether the paint event region (or rectangle) has been erased with the widget's background.

const QRect & QPaintEvent::rect () const
Returns the rectangle that should be updated.

See also region() and QPainter::setClipRect().

Examples: qtimage/qtimage.cpp grapher/grapher.cpp progress/progress.cpp splitter/splitter.cpp trivial/trivial.cpp

const QRegion & QPaintEvent::region () const
Returns the region that should be updated.

See also rect() and QPainter::setClipRegion().

SEE ALSO
http://doc.trolltech.com/qpaintevent.html http://www.trolltech.com/faq/tech.html

COPYRIGHT
Copyright 1992-2001 Trolltech AS, http://www.trolltech.com. See the license file included in the distribution for a complete license statement.

AUTHOR
Generated automatically from the source code.

BUGS
If you find a bug in Qt, please report it as described in http://doc.trolltech.com/bughowto.html. Good bug reports make our job much simpler. Thank you.

In case of content or formattting problems with this manual page, please report them to qt-bugs@trolltech.com. Please include the name of the manual page (qpaintevent.3) and the Qt version (2.3.2).