qedit: Implement IAMTimelineObj_GetTimelineNoRef and add tests.

dlls/qedit/tests/timeline.c

@@ -91,6 +91,14 @@ static void test_timeline(void)
         else
             ok(hr == E_INVALIDARG, "Expected E_INVALIDARG got %08x\n", hr);
     }
+
+    hr = IAMTimelineObj_GetTimelineNoRef(obj, NULL);
+    ok(hr == E_POINTER, "Expected E_POINTER got %08x\n", hr);
+
+    timeline2 = (IAMTimeline *)0xdeadbeef;
+    hr = IAMTimelineObj_GetTimelineNoRef(obj, &timeline2);
+    ok(hr == E_NOINTERFACE, "Expected E_NOINTERFACE got %08x\n", hr);
+    ok(!timeline2, "Expected NULL got %p\n", timeline2);
 }
 
 START_TEST(timeline)

dlls/qedit/timeline.c

@@ -737,9 +737,12 @@ static HRESULT WINAPI TimelineObj_RemoveAll(IAMTimelineObj *iface)
 
 static HRESULT WINAPI TimelineObj_GetTimelineNoRef(IAMTimelineObj *iface, IAMTimeline **timeline)
 {
+    /* MSDN says that this function is "not supported" */
     TimelineObjImpl *This = impl_from_IAMTimelineObj(iface);
-    FIXME("(%p)->(%p): not implemented!\n", This, timeline);
-    return E_NOTIMPL;
+    TRACE("(%p)->(%p)\n", This, timeline);
+    if (!timeline) return E_POINTER;
+    *timeline = NULL;
+    return E_NOINTERFACE;
 }
 
 static HRESULT WINAPI TimelineObj_GetGroupIBelongTo(IAMTimelineObj *iface, IAMTimelineGroup **group)