[PATCH 0/2] MR9159: winbrand: Partially implement BrandingFormatString.

[Esme Povirk (＠madewokherd)]

Used by crash handler in https://bugs.winehq.org/show_bug.cgi?id=58752

Test program: [test.c](/uploads/c61409fde0a02e07abce6ebec725e49b/test.c)

Oddly, on Windows 11 I get:  
WINDOWS_SHORT: Windows 10  
WINDOWS_LONG: Windows 11 Pro

But, since Wine defaults to Windows 10, I opted to use Windows 10 for both.

Ideally, we should probably use the configured Windows version, but I wasn't sure how to approach that.

[PATCH 1/2] winbrand: Add stub dll.

[Esme Povirk]

From: Esme Povirk

---
 configure.ac                |  1 +
 dlls/winbrand/Makefile.in   |  1 +
 dlls/winbrand/winbrand.spec | 15 +++++++++++++++
 3 files changed, 17 insertions(+)
 create mode 100644 dlls/winbrand/Makefile.in
 create mode 100644 dlls/winbrand/winbrand.spec

diff --git a/configure.ac b/configure.ac
index c45b1f83d5e..6b433123b12 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3295,6 +3295,7 @@ WINE_CONFIG_MAKEFILE(dlls/win32u/tests)
 WINE_CONFIG_MAKEFILE(dlls/win87em.dll16)
 WINE_CONFIG_MAKEFILE(dlls/winaspi.dll16)
 WINE_CONFIG_MAKEFILE(dlls/winbio)
+WINE_CONFIG_MAKEFILE(dlls/winbrand)
 WINE_CONFIG_MAKEFILE(dlls/windebug.dll16)
 WINE_CONFIG_MAKEFILE(dlls/windows.applicationmodel)
 WINE_CONFIG_MAKEFILE(dlls/windows.applicationmodel/tests)
diff --git a/dlls/winbrand/Makefile.in b/dlls/winbrand/Makefile.in
new file mode 100644
index 00000000000..bdccbbf66ee
--- /dev/null
+++ b/dlls/winbrand/Makefile.in
@@ -0,0 +1 @@
+MODULE    = winbrand.dll
diff --git a/dlls/winbrand/winbrand.spec b/dlls/winbrand/winbrand.spec
new file mode 100644
index 00000000000..bbc175d2b1d
--- /dev/null
+++ b/dlls/winbrand/winbrand.spec
@@ -0,0 +1,15 @@
+@ stub BrandingFormatString
+@ stub BrandingFormatStringForEdition
+@ stub BrandingLoadBitmap
+@ stub BrandingLoadCursor
+@ stub BrandingLoadIcon
+@ stub BrandingLoadImage
+@ stub BrandingLoadNeutralStringForEdition
+@ stub BrandingLoadString
+@ stub BrandingLoadStringForEdition
+@ stub GetEULAFile
+@ stub GetEULAFileEx
+@ stub GetEULAInCurrentUILanguage
+@ stub GetHinstanceByNamespace
+@ stub GetInstalledEULAPath
+@ stub InstallEULA

[PATCH 2/2] winbrand: Partially implement BrandingFormatString.

[Esme Povirk]

From: Esme Povirk

---
 dlls/winbrand/Makefile.in   |  3 +++
 dlls/winbrand/main.c        | 53 +++++++++++++++++++++++++++++++++++++
 dlls/winbrand/winbrand.spec |  2 +-
 3 files changed, 57 insertions(+), 1 deletion(-)
 create mode 100644 dlls/winbrand/main.c

diff --git a/dlls/winbrand/Makefile.in b/dlls/winbrand/Makefile.in
index bdccbbf66ee..bd8ce7c9c75 100644
--- a/dlls/winbrand/Makefile.in
+++ b/dlls/winbrand/Makefile.in
@@ -1 +1,4 @@
 MODULE    = winbrand.dll
+
+SOURCES = \
+	main.c
diff --git a/dlls/winbrand/main.c b/dlls/winbrand/main.c
new file mode 100644
index 00000000000..3bdc9796da2
--- /dev/null
+++ b/dlls/winbrand/main.c
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2025 Esme Povirk for CodeWeavers
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include <stdarg.h>
+#include "ntstatus.h"
+#define WIN32_NO_STATUS
+#include "windef.h"
+#include "winternl.h"
+#include "wine/debug.h"
+
+WINE_DEFAULT_DEBUG_CHANNEL(winbrand);
+
+LPWSTR WINAPI BrandingFormatString(LPWSTR format)
+{
+    const WCHAR* env = L"WINDOWS_SHORT=Windows 10\0WINDOWS_LONG=Windows 10 Pro\0";
+    NTSTATUS stat;
+    SIZE_T len;
+    LPWSTR result;
+
+    FIXME("%s: semi-stub\n", debugstr_w(format));
+
+    stat = RtlExpandEnvironmentStrings(env, format, wcslen(format), NULL, 0, &len);
+    if (stat != STATUS_SUCCESS && stat != STATUS_BUFFER_TOO_SMALL)
+        return NULL;
+
+    result = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
+    if (!result)
+        return NULL;
+
+    stat = RtlExpandEnvironmentStrings(env, format, wcslen(format), result, len, NULL);
+    if (stat != STATUS_SUCCESS)
+    {
+        HeapFree(GetProcessHeap(), 0, result);
+        return NULL;
+    }
+
+    return result;
+}
diff --git a/dlls/winbrand/winbrand.spec b/dlls/winbrand/winbrand.spec
index bbc175d2b1d..783f1ea7a20 100644
--- a/dlls/winbrand/winbrand.spec
+++ b/dlls/winbrand/winbrand.spec
@@ -1,4 +1,4 @@
-@ stub BrandingFormatString
+@ stdcall BrandingFormatString(wstr)
 @ stub BrandingFormatStringForEdition
 @ stub BrandingLoadBitmap
 @ stub BrandingLoadCursor