Re: [PATCH v2 0/1] MR9057: shell32 shlwapi: Call of ShellMessageBoxW works like Windows 11.

[Jinoh Kang (＠iamahuman)]

On Thu Sep 25 22:36:32 2025 +0000, Matthias Zorn wrote:
> I wanted to program the PickIconDlg function for WineHQ, so I developed
> a program under Windows that calls my own implementation of this
> function (I called it PickIconDlg2). I looked at the source code of Wine
> and got the impression that the ShellMessageBoxW function is already
> implemented correctly and saw that this function is also called
> internally by Wine under certain circumstances. I programmed
> PickIconDlg2 to also use ShellMessageBoxW and was optimistic that the
> program would run well under Wine. However, when I started the program
> with Wine, it only displayed a long error message. The reason for the
> program crash was that ShellMessageBoxW could not be called. So I tried
> to modify ShellMessageBoxW so that the program would also run with Wine.
> I compiled the program with mingw-w64 and it tried to call
> ShellMessageBoxW in shlwapi.dll.
> Hello, thanks for your reply!

You built your program with MinGW, right? It seems MinGW has a problem with shlwapi.

Does your program run correctly on Windows when built *with* MinGW? Would you post a screenshot on Windows?

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https://gitlab.winehq.org/wine/wine/-/merge_requests/9057#note_116859