On 10/25/2012 10:34, Christian Costa wrote:

+
+static HRESULT WINAPI ID3DXFileDataImpl_Create(IDirectXFileObject *dxfile_object, ID3DXFileData **ret_iface)
+{
+    ID3DXFileDataImpl *object;
+
+    TRACE("(%p, %p)\n", dxfile_object, ret_iface);
+
+    *ret_iface = NULL;
+
+    object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object));
+    if (!object)
+    {
+        ERR("Out of memory\n");
+        return E_OUTOFMEMORY;
+    }
+
+    object->ID3DXFileData_iface.lpVtbl = &ID3DXFileData_Vtbl;
+    object->ref = 1;
+    object->dxfile_object = (IDirectXFileData*)dxfile_object;
+
+    *ret_iface = &object->ID3DXFileData_iface;
+
+    return S_OK;
+}
+

You don't need WINAPI for it.

  +        ret = ID3DXFileDataImpl_Create((IDirectXFileObject*)data_object, &object->children[object->nb_children]);

It seems you're casting it back and forth, is it possible to use proper type for data_object?

+    {
+        (&object->ID3DXFileEnumObject_iface)->lpVtbl->Release(&object->ID3DXFileEnumObject_iface);

Hmm, what's wrong with object->ID3DXFileEnumObject_iface.lpVtbl->Release ?