qdragmoveevent(3qt) [centos man page]
QDragMoveEvent(3qt) QDragMoveEvent(3qt) NAME
QDragMoveEvent - Event which is sent while a drag and drop is in progress SYNOPSIS
#include <qevent.h> Inherits QDropEvent. Inherited by QDragEnterEvent. Public Members QDragMoveEvent ( const QPoint & pos, Type type = DragMove ) QRect answerRect () const void accept ( const QRect & r ) void ignore ( const QRect & r ) DESCRIPTION
The QDragMoveEvent class provides an event which is sent while a drag and drop is in progress. When a widget accepts drop events, it will receive this event repeatedly while the drag is within the widget's boundaries. The widget should examine the event to see what data it provides, and accept() the drop if appropriate. Note that this class inherits most of its functionality from QDropEvent. See also Drag And Drop Classes and Event Classes. MEMBER FUNCTION DOCUMENTATION
QDragMoveEvent::QDragMoveEvent ( const QPoint & pos, Type type = DragMove ) Creates a QDragMoveEvent for which the mouse is at point pos, and the event is of type type. Warning: Do not create a QDragMoveEvent yourself since these objects rely on Qt's internal state. void QDragMoveEvent::accept ( const QRect & r ) The same as accept(), but also notifies that future moves will also be acceptable if they remain within the rectangle r on the widget: this can improve performance, but may also be ignored by the underlying system. If the rectangle is empty, then drag move events will be sent continuously. This is useful if the source is scrolling in a timer event. Examples: QRect QDragMoveEvent::answerRect () const Returns the rectangle for which the acceptance of the move event applies. void QDragMoveEvent::ignore ( const QRect & r ) The opposite of accept(const QRect&), i.e. says that moves within rectangle r are not acceptable (will be ignored). Example: dirview/dirview.cpp. SEE ALSO
http://doc.trolltech.com/qdragmoveevent.html http://www.trolltech.com/faq/tech.html COPYRIGHT
Copyright 1992-2007 Trolltech ASA, 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 help us to help you. Thank you. The definitive Qt documentation is provided in HTML format; it is located at $QTDIR/doc/html and can be read using Qt Assistant or with a web browser. This man page is provided as a convenience for those users who prefer man pages, although this format is not officially supported by Trolltech. If you find errors in this manual page, please report them to qt-bugs@trolltech.com. Please include the name of the manual page (qdragmoveevent.3qt) and the Qt version (3.3.8). Trolltech AS 2 February 2007 QDragMoveEvent(3qt)
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QPaintEvent(3qt) QPaintEvent(3qt) NAME
QPaintEvent - Event parameters for paint events SYNOPSIS
#include <qevent.h> Inherits QEvent. Public Members QPaintEvent ( const QRegion & paintRegion, bool erased = TRUE ) QPaintEvent ( const QRect & paintRect, bool erased = TRUE ) QPaintEvent ( const QRegion & paintRegion, 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 part of a widget is exposed because a covering widget is moved. The event contains a region() that needs to be updated, and a rect() that is the bounding rectangle of that region. Both are provided because many widgets can't make much use of region(), and rect() can be much faster than region().boundingRect(). Painting is clipped to region() during processing of a paint event. The erased() function returns TRUE if the region() has been cleared to the widget's background (see QWidget::backgroundMode()), and FALSE if the region's contents are arbitrary. See also QPainter, QWidget::update(), QWidget::repaint(), QWidget::paintEvent(), QWidget::backgroundMode, QRegion, and Event Classes. MEMBER FUNCTION DOCUMENTATION
QPaintEvent::QPaintEvent ( const QRegion & paintRegion, bool erased = TRUE ) Constructs a paint event object with the region that should be updated. The region is given by paintRegion. If erased is TRUE the region will be cleared before repainting. QPaintEvent::QPaintEvent ( const QRect & paintRect, bool erased = TRUE ) Constructs a paint event object with the rectangle that should be updated. The region is also given by paintRect. If erased is TRUE the region will be cleared before repainting. QPaintEvent::QPaintEvent ( const QRegion & paintRegion, const QRect & paintRect, bool erased = TRUE ) Constructs a paint event object with the rectangle paintRect that should be updated. The region is given by paintRegion. If erased is TRUE the region will be cleared before repainting. bool QPaintEvent::erased () const Returns TRUE if the paint event region (or rectangle) has been erased with the widget's background; otherwise returns FALSE. const QRect &; QPaintEvent::rect () const Returns the rectangle that should be updated. See also region() and QPainter::setClipRect(). Examples: const QRegion &; QPaintEvent::region () const Returns the region that should be updated. See also rect() and QPainter::setClipRegion(). Examples: SEE ALSO
http://doc.trolltech.com/qpaintevent.html http://www.trolltech.com/faq/tech.html COPYRIGHT
Copyright 1992-2007 Trolltech ASA, 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 help us to help you. Thank you. The definitive Qt documentation is provided in HTML format; it is located at $QTDIR/doc/html and can be read using Qt Assistant or with a web browser. This man page is provided as a convenience for those users who prefer man pages, although this format is not officially supported by Trolltech. If you find errors in 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 (3.3.8). Trolltech AS 2 February 2007 QPaintEvent(3qt)