Re: [PATCH v6 0/1] MR3959: uxtheme: Add ShouldSystemUseDarkMode.

[Zhiyi Zhang (＠zhiyi)]

Zhiyi Zhang (@zhiyi) commented about dlls/uxtheme/tests/system.c:
> +static void test_ShouldUseDarkMode(void)
> +{
> +    DWORD systemUsesLightTheme, systemusesLightThemeType, systemUsesLightThemeSize = sizeof(DWORD);
> +    HKEY hk = HKEY_CURRENT_USER;
> +    LRESULT lr;
> +
> +    pShouldSystemUseDarkMode = (void *)GetProcAddress(GetModuleHandleA("uxtheme.dll"), 
> +                                                      MAKEINTRESOURCEA(138));
> +    if (!pShouldSystemUseDarkMode)
> +    {
> +        skip("ShouldSystemUseDarkMode was not found.\n");
> +        return;
> +    }
> +
> +    lr = RegGetValueA(hk, "Software\\Microsoft\\Windows\\CurrentVersion\\Themes\\Personalize", "AppsUseLightTheme",

Many of the RegGetValueA() parameters are optional. You can skip passing them if they're not important.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/3959#note_47180