Update generic wxTreeCtrl state images when DPI changes (PR #26060)

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Dec 31, 2025, 10:24:47 AM (19 hours ago) 12/31/25

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Ensure that wxTreeCtrl using only state images, without the normal ones, is still updated correctly when the DPI changes: this didn't happen previously because OnImagesChanged() was only called for the control with normal images.

As changing HasImages() to return true if there are only state images is almost certainly a bad idea for compatibility reasons (existing code may assume that it can use normal images if it returns true), add a new HasAnyImages() function and override it in wxTreeCtrl to account for the state images too.

Closes #26059.

You can view, comment on, or merge this pull request online at:

https://github.com/wxWidgets/wxWidgets/pull/26060

Commit Summary

2571f03 Update generic wxTreeCtrl state images when DPI changes

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(3 files)

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