diff options
| author | Sergey Radionov <RSATom@gmail.com> | 2015-02-06 15:48:02 +0600 |
|---|---|---|
| committer | Sergey Radionov <RSATom@gmail.com> | 2015-02-10 16:55:37 +0000 |
| commit | 34ea269b3b173498312b0203d6875ef3b4ba0253 (patch) | |
| tree | 8c0acceb32dbaba98612f928ac3c08c38ff902e6 | |
| parent | 68293395ed6c513703a206389734201d3202c30c (diff) | |
Win: fix wrong mouse leave event generation
When Qt runs in process with low integrity level,
and place child QWindow to HWND from less restricted process,
ChildWindowFromPointEx could fail with ERROR_ACCESS_DENIED
and QWindowsScreen::windowAt will return 0 despite mouse is on window.
Task-number: QTBUG-44332
Change-Id: I07e1594b90cbde8a9496f8d53ef247a7c69d8715
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
| -rw-r--r-- | src/plugins/platforms/windows/qwindowsmousehandler.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/plugins/platforms/windows/qwindowsmousehandler.cpp b/src/plugins/platforms/windows/qwindowsmousehandler.cpp index acb692579b..b3c31c3de9 100644 --- a/src/plugins/platforms/windows/qwindowsmousehandler.cpp +++ b/src/plugins/platforms/windows/qwindowsmousehandler.cpp @@ -271,6 +271,16 @@ bool QWindowsMouseHandler::translateMouseEvent(QWindow *window, HWND hwnd, QWindow *currentWindowUnderMouse = platformWindow->hasMouseCapture() ? QWindowsScreen::windowAt(globalPosition, CWP_SKIPINVISIBLE | CWP_SKIPTRANSPARENT) : window; + // QTBUG-44332: When Qt is running at low integrity level and + // a Qt Window is parented on a Window of a higher integrity process + // using QWindow::fromWinId() (for example, Qt running in a browser plugin) + // ChildWindowFromPointEx() may not find the Qt window (failing with ERROR_ACCESS_DENIED) + if (!currentWindowUnderMouse) { + const QRect clientRect(QPoint(0, 0), window->size()); + if (clientRect.contains(winEventPosition / QWindowsScaling::factor())) + currentWindowUnderMouse = window; + } + compressMouseMove(&msg); // Qt expects the platform plugin to capture the mouse on // any button press until release. |