On Tue, Oct 31, 2017 at 2:31 AM, Fabian Maurer <dark.shadow4@web.de> wrote:

        main.c

 IDL_SRCS = dx8vb.idl
diff --git a/dlls/dx8vb/d3dx8.c b/dlls/dx8vb/d3dx8.c
new file mode 100644
index 0000000000..2959849547
--- /dev/null
+++ b/dlls/dx8vb/d3dx8.c
@@ -0,0 +1,861 @@
+ /*
+ * Copyright 2017 Fabian Maurer
+ *
+ * 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
+ */
+
+#define COBJMACROS
+
+#include "config.h"
+
+#include "dx8vb_private.h"
+#include "ocidl.h"
+
+#include "wine/debug.h"
+
+WINE_DEFAULT_DEBUG_CHANNEL(dx8vb);
+
+typedef struct
+{
+    ID3DX8 ID3DX8_iface;
+    LONG ref;
+} d3dx8;
+
+static inline d3dx8 *impl_from_ID3DX8(ID3DX8 *iface)
+{
+    return CONTAINING_RECORD(iface, d3dx8, ID3DX8_iface);
+}
+
+/*** d3dx8 - IUnknown methods ***/
+

Comment seems a bit useless, you're not going to use this file for anything else.
 
+static HRESULT WINAPI d3dx8_QueryInterface(ID3DX8 *iface, REFIID riid, void **ppv)
+{
+    d3dx8 *This = impl_from_ID3DX8(iface);
+
+    TRACE("(%p/%p)->(%s,%p)\n", iface, This, debugstr_guid(riid), ppv);
+
+    *ppv = NULL;
+
+    if (IsEqualGUID(riid, &IID_IUnknown))
+        *ppv = &This->ID3DX8_iface;
+    else if(IsEqualGUID(riid, &IID_ID3DX8))
+        *ppv = &This->ID3DX8_iface;
+    else if(IsEqualGUID(riid, &IID_IPersistPropertyBag))
+        FIXME("No interface for IID_IPersistPropertyBag\n");
+    else if(IsEqualGUID(riid, &IID_IPersistStreamInit))
+        FIXME("No interface for IID_IPersistStreamInit\n");
+    else

Where does this come from?