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-rw-r--r--src/gui/kernel/qevent.cpp11
1 files changed, 7 insertions, 4 deletions
diff --git a/src/gui/kernel/qevent.cpp b/src/gui/kernel/qevent.cpp
index 9e8fc19649..517233482f 100644
--- a/src/gui/kernel/qevent.cpp
+++ b/src/gui/kernel/qevent.cpp
@@ -4260,10 +4260,13 @@ QTouchEvent::~QTouchEvent()
Returns the unique ID of this touch point or token, if any.
It is often invalid (see \l {QPointingDeviceUniqueId::isValid()} {isValid()}),
- because touchscreens cannot uniquely identify fingers. But when the
- \l {TouchPoint::InfoFlag} {Token} flag is set, it is expected to uniquely
- identify a specific token (fiducial object). When it comes from a QTabletEvent,
- it identifies the serial number of the stylus in use.
+ because touchscreens cannot uniquely identify fingers.
+
+ When it comes from a QTabletEvent, it identifies the serial number of the
+ stylus in use.
+
+ It may identify a specific token (fiducial object) when the TUIO driver is
+ in use with a touchscreen that supports them.
\sa flags
*/