diff options
| author | Morten Johan Sørvig <morten.sorvig@qt.io> | 2016-01-21 10:33:45 +0100 |
|---|---|---|
| committer | Tor Arne Vestbø <tor.arne.vestbo@qt.io> | 2017-07-11 15:25:00 +0000 |
| commit | ecac1aeb29f37a080d4f2d3614bfc5fcc5b70689 (patch) | |
| tree | 0bb1f62818a870e8f287558d56935762a6187a07 /src/gui/kernel/qevent.cpp | |
| parent | a6991376cc4c7084a151272d7e27a5140597cc9e (diff) | |
Document expose event behavior
Document that "visible"-but-obscured windows may not
get expose events for various audiences: QTestLib
users, platform plugin authors and on the QExposeEvent
itself. QWindow::exposeEvent() already has this documented
and is not changed.
Task-number: QTBUG-50414
Change-Id: I91042e8b1c70e48f10e692b2e80367d242a8ccbe
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Diffstat (limited to 'src/gui/kernel/qevent.cpp')
| -rw-r--r-- | src/gui/kernel/qevent.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/gui/kernel/qevent.cpp b/src/gui/kernel/qevent.cpp index 680acb16e7..5000cc35dd 100644 --- a/src/gui/kernel/qevent.cpp +++ b/src/gui/kernel/qevent.cpp @@ -1525,7 +1525,11 @@ QMoveEvent::~QMoveEvent() \ingroup events Expose events are sent to windows when an area of the window is invalidated - or window visibility in the windowing system changes. + or window exposure in the windowing system changes. + + A Window with a client area that is completely covered by another window, or + is otherwise not visible may be considered obscured by Qt and may in such + cases not receive expose events. The event handler QWindow::exposeEvent() receives expose events. */ |