On Tue, Feb 3, 2026 at 7:02 PM Wladimir Leuschner <[email protected]> wrote:
> > thank you for reporting the bug. This behaviour is indeed a regression and > was introduced with https://codereview.qt-project.org/c/qt/qtbase/+/619145 to > 6.10.2 and 6.11beta2 by me. Sorry for that. A bug report related to the > issue seems already created with > https://qt-project.atlassian.net/browse/QTBUG-143832. In case you have > additions to the report you are welcome to comment on the bugtracker. > Best regards, > Wladimir Leuschner > Dear Wladimir, Thank you for the bug report. Whatever the knowledge I have is in this email. Please, let me know when you have a patch to fix it. Thanks in advance! Kind regards, Robert > > ------------------------------ > *Von:* Interest <[email protected]> im Auftrag von > coroberti <[email protected]> > *Gesendet:* Dienstag, 3. Februar 2026 11:35 > *An:* Qt Interest <[email protected]> > *Betreff:* [Interest] Qt-6.10.2 Widgets - Qt::CustomizeWindowHint Is > Broken on Windows > > Hi, > Qt::CustomizeWindowHint was removing the three right-angle controls from a > window for many years, > but it seems to be now broken for Qt-6.10 at least on Windows. > > Qt::Window| Qt::WindowTitleHint | Qt::CustomizeWindowHint > Thus, we were getting a window with a title-bar but without the 3 controls > from the right side. > > Status for now is: > [image: image.png] > > All controls are present and maximize is even active. > > The attempts to remove the controls by getting flags and zeroing the bit > for flags > like & ~ individual hint - all failed. > > The only workaround that works 4me is adding the > flag Qt::MSWindowsFixedSizeDialogHint - the consequence is that the image > icon gets out. > > You can compile versus the Qt-6.10.2 and easily reproduce the break by > using the *Windows Flags Example*. > > > https://doc.qt.io/archives/qt-5.15/qtwidgets-widgets-windowflags-example.html > > and the code: > > https://code.qt.io/cgit/qt/qtbase.git/tree/examples/widgets/widgets/windowflags?h=5.15 > > Am I the only one to see it or most people do not advance to the latest Qt? > > Thanks. > > Kind regards, > Robert Iakobashvili > ............................ > Confidential >
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