Empty wxNotebook asserts on MSW in dark mode (Issue #26007)
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rudolfwalter
Dec 1, 2025, 6:57:53 AM (2 days ago) Dec 1
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rudolfwalter created an issue (wxWidgets/wxWidgets#26007)Description
Empty wxNotebooks trip an assertion during every paint on MSW in dark mode.
Looks like it is a regression from 365b07b, which moved a GetTabRect(0) call before the corresponding GetPageCount() check.
Repro
Run the notebook sample in dark mode, press Alt+L a few times to delete notebook pages, and see the assertion once the last one is deleted.
Platform and version information
- wxWidgets version: 3.3 master
- wxWidgets port: wxMSW
- OS: Windows 11 25H2
- other: 150% DPI
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VZ
Dec 1, 2025, 10:33:26 AM (2 days ago) Dec 1
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vadz left a comment (wxWidgets/wxWidgets#26007)Thanks for noticing and reporting this, I'll push a fix soon.
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