uiautomationcore: Add stub UiaGetPropertyValue implementation.

dlls/uiautomationcore/uia_main.c

@@ -359,3 +359,12 @@ HRESULT WINAPI UiaDisconnectProvider(IRawElementProviderSimple *provider)
     FIXME("(%p): stub\n", provider);
     return E_NOTIMPL;
 }
+
+/***********************************************************************
+ *          UiaGetPropertyValue (uiautomationcore.@)
+ */
+HRESULT WINAPI UiaGetPropertyValue(HUIANODE huianode, PROPERTYID prop_id, VARIANT *out_val)
+{
+    FIXME("(%p, %d, %p): stub\n", huianode, prop_id, out_val);
+    return E_NOTIMPL;
+}

dlls/uiautomationcore/uiautomationcore.spec

@@ -62,7 +62,7 @@
 @ stub UiaFind
 @ stub UiaGetErrorDescription
 @ stub UiaGetPatternProvider
-@ stub UiaGetPropertyValue
+@ stdcall UiaGetPropertyValue(ptr long ptr)
 @ stdcall UiaGetReservedMixedAttributeValue(ptr)
 @ stdcall UiaGetReservedNotSupportedValue(ptr)
 @ stub UiaGetRootNode

include/uiautomationcoreapi.h

@@ -255,6 +255,7 @@ LRESULT WINAPI UiaReturnRawElementProvider(HWND hwnd, WPARAM wParam, LPARAM lPar
 BOOL WINAPI UiaTextRangeRelease(HUIATEXTRANGE hobj);
 HRESULT WINAPI UiaHostProviderFromHwnd(HWND hwnd, IRawElementProviderSimple **elprov);
 HRESULT WINAPI UiaProviderFromIAccessible(IAccessible *acc, long child_id, DWORD flags, IRawElementProviderSimple **elprov);
+HRESULT WINAPI UiaGetPropertyValue(HUIANODE huianode, PROPERTYID prop_id, VARIANT *out_val);
 
 #ifdef __cplusplus
 }