Re: [PATCH v3 0/2] MR8702: user32/tests: Add more SendMessageCallbackA/W() tests with NULL callback.

[Dmitry Timoshkov (＠dmitry)]

On Mon Aug  4 09:52:06 2025 +0000, Dmitry Timoshkov wrote:
> Does replacing WM_USER by WM_NULL change the observed behaviour under Windows?
> Also what actual message number the affected application uses?

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https://gitlab.winehq.org/wine/wine/-/merge_requests/8702#note_112001