quartz: Return VFW_E_ENUM_OUT_OF_SYNC in IEnumFilters::Skip() when enum version…

dlls/quartz/filtergraph.c

@@ -322,6 +322,9 @@ static HRESULT WINAPI EnumFilters_Skip(IEnumFilters *iface, ULONG count)
 
     TRACE("enum_filters %p, count %u.\n", enum_filters, count);
 
+    if (enum_filters->version != enum_filters->graph->version)
+        return VFW_E_ENUM_OUT_OF_SYNC;
+
     if (!enum_filters->cursor)
         return S_FALSE;
 

dlls/quartz/tests/filtergraph.c

@@ -683,6 +683,9 @@ static void test_enum_filters(void)
     hr = IEnumFilters_Next(enum1, 1, filters, NULL);
     ok(hr == VFW_E_ENUM_OUT_OF_SYNC, "Got hr %#x.\n", hr);
 
+    hr = IEnumFilters_Skip(enum1, 1);
+    ok(hr == VFW_E_ENUM_OUT_OF_SYNC, "Got hr %#x.\n", hr);
+
     hr = IEnumFilters_Reset(enum1);
     ok(hr == S_OK, "Got hr %#x.\n", hr);