[PATCH 4/7] uiautomationcore: Add get_prop_val method to IWineUiaNode.

[Connor McAdams]

From: Connor McAdams

Signed-off-by: Connor McAdams 
---
 dlls/uiautomationcore/uia_classes.idl |  1 +
 dlls/uiautomationcore/uia_client.c    | 21 +++++++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/dlls/uiautomationcore/uia_classes.idl b/dlls/uiautomationcore/uia_classes.idl
index 030606cec93..e2889901fbb 100644
--- a/dlls/uiautomationcore/uia_classes.idl
+++ b/dlls/uiautomationcore/uia_classes.idl
@@ -55,5 +55,6 @@ library UIA_wine_private
     interface IWineUiaNode : IUnknown
     {
         HRESULT get_provider([out, retval]IWineUiaProvider **out_prov);
+        HRESULT get_prop_val([in]const GUID *prop_guid, [out, retval]VARIANT *ret_val);
     }
 }
diff --git a/dlls/uiautomationcore/uia_client.c b/dlls/uiautomationcore/uia_client.c
index c1fb880c9f1..6d1a641dafc 100644
--- a/dlls/uiautomationcore/uia_client.c
+++ b/dlls/uiautomationcore/uia_client.c
@@ -354,11 +354,32 @@ static HRESULT WINAPI uia_node_get_provider(IWineUiaNode *iface, IWineUiaProvide
     return S_OK;
 }

+static HRESULT WINAPI uia_node_get_prop_val(IWineUiaNode *iface, const GUID *prop_guid,
+        VARIANT *ret_val)
+{
+    int prop_id = UiaLookupId(AutomationIdentifierType_Property, prop_guid);
+    HRESULT hr;
+    VARIANT v;
+
+    TRACE("%p, %s, %p\n", iface, debugstr_guid(prop_guid), ret_val);
+
+    hr = UiaGetPropertyValue((HUIANODE)iface, prop_id, &v);
+
+    /* VT_UNKNOWN is UiaGetReservedNotSupported value, no need to marshal it. */
+    if (V_VT(&v) == VT_UNKNOWN)
+        V_VT(ret_val) = VT_EMPTY;
+    else
+        *ret_val = v;
+
+    return hr;
+}
+
 static const IWineUiaNodeVtbl uia_node_vtbl = {
     uia_node_QueryInterface,
     uia_node_AddRef,
     uia_node_Release,
     uia_node_get_provider,
+    uia_node_get_prop_val,
 };

static struct uia_node *unsafe_impl_from_IWineUiaNode(IWineUiaNode *iface)