[PATCH 6/6] uiautomationcore: Implement IUIAutomation::CheckNotSupported.

[Connor McAdams]

From: Connor McAdams

Signed-off-by: Connor McAdams 
---
 dlls/uiautomationcore/tests/uiautomation.c | 17 ++++++++++++++++-
 dlls/uiautomationcore/uia_com_client.c     | 12 ++++++++++--
 2 files changed, 26 insertions(+), 3 deletions(-)

diff --git a/dlls/uiautomationcore/tests/uiautomation.c b/dlls/uiautomationcore/tests/uiautomation.c
index dc3e2a29e7d..fb0371d0764 100644
--- a/dlls/uiautomationcore/tests/uiautomation.c
+++ b/dlls/uiautomationcore/tests/uiautomation.c
@@ -10107,10 +10107,11 @@ static const struct uia_com_classes com_classes[] = {

static void test_CUIAutomation(void)
 {
+    BOOL has_cui8 = TRUE, tmp_b;
     IUIAutomation *uia_iface;
     IUnknown *unk1, *unk2;
-    BOOL has_cui8 = TRUE;
     HRESULT hr;
+    VARIANT v;
     int i;

CoInitializeEx(NULL, COINIT_MULTITHREADED);
@@ -10159,6 +10160,13 @@ static void test_CUIAutomation(void)
     hr = IUIAutomation_get_ReservedNotSupportedValue(uia_iface, &unk2);
     ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
     ok(unk1 == unk2, "unk1 != unk2\n");
+
+    V_VT(&v) = VT_UNKNOWN;
+    V_UNKNOWN(&v) = unk1;
+    hr = IUIAutomation_CheckNotSupported(uia_iface, v, &tmp_b);
+    ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
+    ok(tmp_b == TRUE, "tmp_b != TRUE\n");
+
     IUnknown_Release(unk1);
     IUnknown_Release(unk2);

@@ -10168,6 +10176,13 @@ static void test_CUIAutomation(void)
     hr = IUIAutomation_get_ReservedMixedAttributeValue(uia_iface, &unk2);
     ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
     ok(unk1 == unk2, "unk1 != unk2\n");
+
+    V_VT(&v) = VT_UNKNOWN;
+    V_UNKNOWN(&v) = unk1;
+    hr = IUIAutomation_CheckNotSupported(uia_iface, v, &tmp_b);
+    ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
+    ok(tmp_b == FALSE, "tmp_b != FALSE\n");
+
     IUnknown_Release(unk1);
     IUnknown_Release(unk2);

diff --git a/dlls/uiautomationcore/uia_com_client.c b/dlls/uiautomationcore/uia_com_client.c
index 8bab1cbf768..f6bb7520829 100644
--- a/dlls/uiautomationcore/uia_com_client.c
+++ b/dlls/uiautomationcore/uia_com_client.c
@@ -1504,8 +1504,16 @@ static HRESULT WINAPI uia_iface_PollForPotentialSupportedProperties(IUIAutomatio

static HRESULT WINAPI uia_iface_CheckNotSupported(IUIAutomation6 *iface, VARIANT in_val, BOOL *match)
 {
-    FIXME("%p, %s, %p: stub\n", iface, debugstr_variant(&in_val), match);
-    return E_NOTIMPL;
+    IUnknown *unk;
+
+    TRACE("%p, %s, %p\n", iface, debugstr_variant(&in_val), match);
+
+    *match = FALSE;
+    UiaGetReservedNotSupportedValue(&unk);
+    if (V_VT(&in_val) == VT_UNKNOWN && (V_UNKNOWN(&in_val) == unk))
+        *match = TRUE;
+
+    return S_OK;
 }

static HRESULT WINAPI uia_iface_get_ReservedNotSupportedValue(IUIAutomation6 *iface, IUnknown **out_unk)