[PATCH v2 1/3] quartz: Return VFW_E_ENUM_OUT_OF_SYNC in IEnumFilters::Skip() when enum version doesn't match graph version.

[Gijs Vermeulen]

Signed-off-by: Gijs Vermeulen 
---
 dlls/quartz/filtergraph.c       | 3 +++
 dlls/quartz/tests/filtergraph.c | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/dlls/quartz/filtergraph.c b/dlls/quartz/filtergraph.c
index b3aebabbdad..fb2cbc76b31 100644
--- a/dlls/quartz/filtergraph.c
+++ b/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;

diff --git a/dlls/quartz/tests/filtergraph.c b/dlls/quartz/tests/filtergraph.c
index e7ee4e5c446..446fa4ae1af 100644
--- a/dlls/quartz/tests/filtergraph.c
+++ b/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);