Details
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Bug
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Resolution: Duplicate
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P2: Important
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None
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5.12, 5.14.2, 5.15.2
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None
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Windows 10 64-bit
Description
Standard QT drag / drop event code to transfer data between widgets produces a combase error and causes GUI thread to stall. Reproducable in QT examples in both debug and release builds with MINGW and MSVC.
onecore\com\combase\dcomrem\resolver.cxx(2491)\combase.dll!00007FFD1A377992: (caller: 00007FFD1A2C2075) ReturnHr(1) tid(399c) 80040154 Class not registered
Reproducible when a drag event is in progress but it is not catageorized as one of the following:
- dragMoveEvent
- dragEnterEvent
- dragLeaveEvent
- dropEvent
In other words, if an item is dragged and mouse stops on the receiving widget.
Related QT forum post:
https://forum.qt.io/topic/123927/qdrag-qdropevent-combase-error-class-not-registered/14
Attachments
Issue Links
- duplicates
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QTBUG-96234 QDrag::exec() produces thousands of error message "combase.dll: Class not registered"
- Closed