diff options
Diffstat (limited to 'src/gui')
| -rw-r--r-- | src/gui/kernel/qevent.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/gui/kernel/qevent.cpp b/src/gui/kernel/qevent.cpp index 3c33731279..6617057b42 100644 --- a/src/gui/kernel/qevent.cpp +++ b/src/gui/kernel/qevent.cpp @@ -803,6 +803,16 @@ QMouseEvent::~QMouseEvent() \sa Qt::MouseEventSource \sa QGraphicsSceneMouseEvent::source() + + \note In Qt 5-based code, source() was often used to attempt to distinguish + mouse events from an actual mouse vs. those that were synthesized because + some legacy QQuickItem or QWidget subclass did not react to a QTouchEvent. + However, you could not tell whether it was synthesized from a QTouchEvent + or a QTabletEvent, and other information was lost. pointingDevice() + tells you the specific device that it came from, so you might check + \c {pointingDevice()->type()} or \c {pointingDevice()->capabilities()} to + decide how to react to this event. But it's even better to react to the + original event rather than handling only mouse events. */ #if QT_DEPRECATED_SINCE(6, 0) Qt::MouseEventSource QMouseEvent::source() const |