[Bug 47999] Gif pictures stored in PE files are not loaded into HTML web pages via Res protocol

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=47999

--- Comment #2 from Damjan Jovanovic <damjan.jov at gmail.com> ---
Wine does load the HTML resource correctly, but then attempts to load its
<image> from its res:// URL with resource type #0017 (RT_HTML), which fails:

0009:trace:mshtml:ResProtocol_Start trying to find resource type #0017, name
L"image7.gif"
0009:warn:mshtml:ResProtocol_Start Could not find resource

Looking through the executable's resources, we see image7.gif has resource type
0x83e (2110 decimal), and indeed, the source code says:

        // In the HTML File to locate resource in
        // your app add the file by name and in binary format
        // of type 2110 ( Magic Number for Microsoft)
        // HTML files are placed automatically under 
        // category of type HTML

Patching dlls/mshtml/protocol.c function ResProtocol_Start() to use resource
type 2110 when the default res_type fails, fixes the problem.

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