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| author | Oliver Wolff <oliver.wolff@qt.io> | 2021-09-30 11:04:48 +0200 |
|---|---|---|
| committer | Oliver Wolff <oliver.wolff@qt.io> | 2021-09-30 13:58:34 +0200 |
| commit | 8d6e825ddfa14f75959ae20a76e4e1a34f4faec2 (patch) | |
| tree | 80e5e32c00b76ba64dc47ab28271f02158ba7f66 | |
| parent | 95ef19371577e1646bd232763928e6ddf80d753f (diff) | |
windows qpa: Handle invisible child windows gracefully on dpi changes
Fixes: QTBUG-96466
Pick-to: 6.2
Change-Id: I58d90e85b4bb837df2dc5fd89abe984dadcd468d
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
| -rw-r--r-- | src/plugins/platforms/windows/qwindowscontext.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/plugins/platforms/windows/qwindowscontext.cpp b/src/plugins/platforms/windows/qwindowscontext.cpp index 433e58a97a..bbdf1ad692 100644 --- a/src/plugins/platforms/windows/qwindowscontext.cpp +++ b/src/plugins/platforms/windows/qwindowscontext.cpp @@ -1474,6 +1474,8 @@ bool QWindowsContext::windowsProc(HWND hwnd, UINT message, // Scale child QPlatformWindow size. Windows sends WM_DPICHANGE to top-level windows only. for (QWindow *childWindow : platformWindow->window()->findChildren<QWindow *>()) { QWindowsWindow *platformChildWindow = static_cast<QWindowsWindow *>(childWindow->handle()); + if (!platformChildWindow) + continue; QRect currentGeometry = platformChildWindow->geometry(); QRect scaledGeometry = QRect(currentGeometry.topLeft() * scale, currentGeometry.size() * scale); platformChildWindow->setGeometry(scaledGeometry); |