QPaintEvent(3qt)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 DOCUMENTATIONQPaintEvent::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.
Trolltech AS 13 June 2001 1
QPaintEvent(3qt)QPaintEvent(3qt)
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.3qt) and the Qt version (2.3.1).
Trolltech AS 13 June 2001 2
