[konsole] [Bug 411965] Rendering issue in dual screen hidpi setup

[Christoph Cullmann]

https://bugs.kde.org/show_bug.cgi?id=411965

--- Comment #33 from Christoph Cullmann <cullmann at kde.org> ---
I debugged a bit more, and yes, for the Kate case, the
widget->nativeParentWidget() function returns nullptr.

Therefore you get some 0 id from the effectiveWinId().

For a normal konsole start, all is fine.

Either one is OK with a "bad" WINDOWID env var or one needs to add e.g. a
fallback to QApplication::activeWindow()->winId() (if a window there).

This fallback could be used for the "no views" case, too.

But I think that is something for the konsole devs to decide.
At least the current code doesn't introduce native widgets our of thin air.

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