Regression in wxMSW: Flickering of `wxAuiToolBar` when hovering over it (Issue #25874)
taler21
taler21 created an issue (wxWidgets/wxWidgets#25874)Since #25808 (Don't enable WS_EX_COMPOSITED by default in wxMSW any longer, 2025-09-23) the wxAuiToolBar flickers when hovering over it with the mouse.
In 3.2 it works fine, so I think the actual culprit change must be a different one.
The flickering can also be seen in the aui sample.
Platform and version information
- wxWidgets version you use: master (9469d6d)
- wxWidgets port you use: wxMSW
- OS and its version: Windows 11
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taler21
taler21 left a comment (wxWidgets/wxWidgets#25874)The cause for the flickering (the regression) is that the following changes were not reverted in #25808 (Don't enable WS_EX_COMPOSITED by default in wxMSW any longer, 2025-09-23):
- 386e60c (Fix refreshing wxAuiToolBar after stopping double buffering it, 2024-10-01)
- 76b3738 (Stop using wxAutoBufferedPaintDC in wxAuiToolBar, 2024-08-23)
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VZ
vadz left a comment (wxWidgets/wxWidgets#25874)Thanks a lot for finding these commits, I suspected it was due to something like this but didn't have time to search for them myself yet. Will remove and push in a moment.
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VZ
Closed #25874 as completed via 3acfe43.
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