From: Connor McAdams cmcadams@codeweavers.com
Signed-off-by: Connor McAdams cmcadams@codeweavers.com --- dlls/uiautomationcore/tests/uiautomation.c | 214 ++++++++++----------- dlls/uiautomationcore/uia_client.c | 109 ++++++++--- dlls/uiautomationcore/uia_private.h | 16 ++ dlls/uiautomationcore/uia_provider.c | 5 +- 4 files changed, 205 insertions(+), 139 deletions(-)
diff --git a/dlls/uiautomationcore/tests/uiautomation.c b/dlls/uiautomationcore/tests/uiautomation.c index 7982bd5fa8b..b500ca73b62 100644 --- a/dlls/uiautomationcore/tests/uiautomation.c +++ b/dlls/uiautomationcore/tests/uiautomation.c @@ -5294,57 +5294,53 @@ static DWORD WINAPI uia_node_from_handle_test_thread(LPVOID param) Provider_child.runtime_id[1] = 2; Provider_child.frag_root = NULL; hr = UiaGetPropertyValue(node, UIA_LabeledByPropertyId, &v); - todo_wine ok(hr == E_FAIL || broken(hr == S_OK), "Unexpected hr %#lx\n", hr); + ok(hr == E_FAIL || broken(hr == S_OK), "Unexpected hr %#lx\n", hr); if (SUCCEEDED(hr)) { hr = UiaHUiaNodeFromVariant(&v, &node2); ok(hr == S_OK, "Unexpected hr %#lx\n", hr); UiaNodeRelease(node2); } - if (hr != E_NOTIMPL) - ok_method_sequence(node_from_hwnd5, "node_from_hwnd5"); + + ok_method_sequence(node_from_hwnd5, "node_from_hwnd5");
/* RuntimeId check succeeds, we'll get a nested node. */ Provider_child.frag_root = &Provider.IRawElementProviderFragmentRoot_iface; hr = UiaGetPropertyValue(node, UIA_LabeledByPropertyId, &v); - todo_wine ok(hr == S_OK, "Unexpected hr %#lx\n", hr); - todo_wine ok(Provider_child.ref == 2, "Unexpected refcnt %ld\n", Provider_child.ref); + ok(hr == S_OK, "Unexpected hr %#lx\n", hr); + ok(Provider_child.ref == 2, "Unexpected refcnt %ld\n", Provider_child.ref);
+ hr = UiaHUiaNodeFromVariant(&v, &node2); + ok(hr == S_OK, "Unexpected hr %#lx\n", hr); + hr = UiaGetPropertyValue(node2, UIA_ProviderDescriptionPropertyId, &v); + todo_wine ok(hr == S_OK, "Unexpected hr %#lx\n", hr); if (SUCCEEDED(hr)) { - hr = UiaHUiaNodeFromVariant(&v, &node2); - ok(hr == S_OK, "Unexpected hr %#lx\n", hr); - hr = UiaGetPropertyValue(node2, UIA_ProviderDescriptionPropertyId, &v); - todo_wine ok(hr == S_OK, "Unexpected hr %#lx\n", hr); - if (SUCCEEDED(hr)) - { - /* - * Even though this is a nested node, without any additional - * providers, it will not have the 'Nested' prefix. - */ - check_node_provider_desc_prefix(V_BSTR(&v), GetCurrentProcessId(), NULL); - check_node_provider_desc(V_BSTR(&v), L"Main", L"Provider_child", TRUE); - VariantClear(&v); - } - - hr = UiaGetPropertyValue(node2, UIA_ControlTypePropertyId, &v); - ok(hr == S_OK, "Unexpected hr %#lx\n", hr); - ok(V_VT(&v) == VT_I4, "Unexpected VT %d\n", V_VT(&v)); - ok(V_I4(&v) == uia_i4_prop_val, "Unexpected I4 %#lx\n", V_I4(&v)); - ok_method_sequence(node_from_hwnd6, "node_from_hwnd6"); - - UiaNodeRelease(node2); - /* - * There is a delay between nested nodes being released and the - * corresponding IRawElementProviderSimple release on newer Windows - * versions. + * Even though this is a nested node, without any additional + * providers, it will not have the 'Nested' prefix. */ - if (Provider_child.ref != 1) - Sleep(50); - ok(Provider_child.ref == 1, "Unexpected refcnt %ld\n", Provider_child.ref); + check_node_provider_desc_prefix(V_BSTR(&v), GetCurrentProcessId(), NULL); + check_node_provider_desc(V_BSTR(&v), L"Main", L"Provider_child", TRUE); + VariantClear(&v); }
+ hr = UiaGetPropertyValue(node2, UIA_ControlTypePropertyId, &v); + ok(hr == S_OK, "Unexpected hr %#lx\n", hr); + ok(V_VT(&v) == VT_I4, "Unexpected VT %d\n", V_VT(&v)); + ok(V_I4(&v) == uia_i4_prop_val, "Unexpected I4 %#lx\n", V_I4(&v)); + ok_method_sequence(node_from_hwnd6, "node_from_hwnd6"); + + UiaNodeRelease(node2); + + /* + * There is a delay between nested nodes being released and the + * corresponding IRawElementProviderSimple release on newer Windows + * versions. + */ + if (Provider_child.ref != 1) + Sleep(50); + ok(Provider_child.ref == 1, "Unexpected refcnt %ld\n", Provider_child.ref);
/* * Returned nested elements with an HWND will have client-side providers @@ -5355,42 +5351,39 @@ static DWORD WINAPI uia_node_from_handle_test_thread(LPVOID param) /* Only sent on Win7. */ SET_EXPECT(winproc_GETOBJECT_CLIENT); hr = UiaGetPropertyValue(node, UIA_LabeledByPropertyId, &v); - todo_wine ok(hr == S_OK, "Unexpected hr %#lx\n", hr); + ok(hr == S_OK, "Unexpected hr %#lx\n", hr); todo_wine CHECK_CALLED(winproc_GETOBJECT_UiaRoot); called_winproc_GETOBJECT_CLIENT = expect_winproc_GETOBJECT_CLIENT = 0; - todo_wine ok(Provider_child.ref == 2, "Unexpected refcnt %ld\n", Provider_child.ref); + ok(Provider_child.ref == 2, "Unexpected refcnt %ld\n", Provider_child.ref);
+ hr = UiaHUiaNodeFromVariant(&v, &node2); + ok(hr == S_OK, "Unexpected hr %#lx\n", hr); + hr = UiaGetPropertyValue(node2, UIA_ProviderDescriptionPropertyId, &v); + todo_wine ok(hr == S_OK, "Unexpected hr %#lx\n", hr); if (SUCCEEDED(hr)) { - hr = UiaHUiaNodeFromVariant(&v, &node2); - ok(hr == S_OK, "Unexpected hr %#lx\n", hr); - hr = UiaGetPropertyValue(node2, UIA_ProviderDescriptionPropertyId, &v); - todo_wine ok(hr == S_OK, "Unexpected hr %#lx\n", hr); - if (SUCCEEDED(hr)) - { - memset(buf, 0, sizeof(buf)); + memset(buf, 0, sizeof(buf));
- ok(get_nested_provider_desc(V_BSTR(&v), L"Main", TRUE, buf), "Failed to get nested provider description\n"); - check_node_provider_desc_prefix(buf, GetCurrentProcessId(), hwnd); - /* Win10v1507 and below have the nested provider as 'Hwnd'. */ - if (get_provider_desc(buf, L"Hwnd(parent link):", NULL)) - check_node_provider_desc(buf, L"Hwnd", L"Provider_child", TRUE); - else - check_node_provider_desc(buf, L"Main", L"Provider_child", TRUE); + ok(get_nested_provider_desc(V_BSTR(&v), L"Main", TRUE, buf), "Failed to get nested provider description\n"); + check_node_provider_desc_prefix(buf, GetCurrentProcessId(), hwnd); + /* Win10v1507 and below have the nested provider as 'Hwnd'. */ + if (get_provider_desc(buf, L"Hwnd(parent link):", NULL)) + check_node_provider_desc(buf, L"Hwnd", L"Provider_child", TRUE); + else + check_node_provider_desc(buf, L"Main", L"Provider_child", TRUE);
- check_node_provider_desc_prefix(V_BSTR(&v), GetCurrentProcessId(), hwnd); - check_node_provider_desc(V_BSTR(&v), L"Nonclient", NULL, FALSE); - check_node_provider_desc(V_BSTR(&v), L"Hwnd", NULL, FALSE); - VariantClear(&v); - } + check_node_provider_desc_prefix(V_BSTR(&v), GetCurrentProcessId(), hwnd); + check_node_provider_desc(V_BSTR(&v), L"Nonclient", NULL, FALSE); + check_node_provider_desc(V_BSTR(&v), L"Hwnd", NULL, FALSE); + VariantClear(&v); + }
- ok_method_sequence(node_from_hwnd7, "node_from_hwnd7"); - UiaNodeRelease(node2); + ok_method_sequence(node_from_hwnd7, "node_from_hwnd7"); + UiaNodeRelease(node2);
- if (Provider_child.ref != 1) - Sleep(50); - ok(Provider_child.ref == 1, "Unexpected refcnt %ld\n", Provider_child.ref); - } + if (Provider_child.ref != 1) + Sleep(50); + ok(Provider_child.ref == 1, "Unexpected refcnt %ld\n", Provider_child.ref);
ok(UiaNodeRelease(node), "UiaNodeRelease returned FALSE\n"); /* Win10v1809 can be slow to call Release on Provider. */ @@ -5452,68 +5445,65 @@ static DWORD WINAPI uia_node_from_handle_test_thread(LPVOID param) Provider_child.hwnd = NULL; Provider_child.frag_root = &Provider.IRawElementProviderFragmentRoot_iface; hr = UiaGetPropertyValue(node, UIA_LabeledByPropertyId, &v); - todo_wine ok(hr == S_OK, "Unexpected hr %#lx\n", hr); - todo_wine ok(Provider_child.ref == 2, "Unexpected refcnt %ld\n", Provider_child.ref); + ok(hr == S_OK, "Unexpected hr %#lx\n", hr); + ok(Provider_child.ref == 2, "Unexpected refcnt %ld\n", Provider_child.ref);
+ hr = UiaHUiaNodeFromVariant(&v, &node2); + ok(hr == S_OK, "Unexpected hr %#lx\n", hr); + hr = UiaGetPropertyValue(node2, UIA_ProviderDescriptionPropertyId, &v); + todo_wine ok(hr == S_OK, "Unexpected hr %#lx\n", hr); if (SUCCEEDED(hr)) { - hr = UiaHUiaNodeFromVariant(&v, &node2); - ok(hr == S_OK, "Unexpected hr %#lx\n", hr); - hr = UiaGetPropertyValue(node2, UIA_ProviderDescriptionPropertyId, &v); - todo_wine ok(hr == S_OK, "Unexpected hr %#lx\n", hr); - if (SUCCEEDED(hr)) - { - check_node_provider_desc_prefix(V_BSTR(&v), GetCurrentProcessId(), NULL); - check_node_provider_desc(V_BSTR(&v), L"Main", L"Provider_child", TRUE); - VariantClear(&v); - } + check_node_provider_desc_prefix(V_BSTR(&v), GetCurrentProcessId(), NULL); + check_node_provider_desc(V_BSTR(&v), L"Main", L"Provider_child", TRUE); + VariantClear(&v); + }
- hr = UiaGetPropertyValue(node2, UIA_ControlTypePropertyId, &v); - ok(hr == S_OK, "Unexpected hr %#lx\n", hr); - ok(V_VT(&v) == VT_I4, "Unexpected VT %d\n", V_VT(&v)); - ok(V_I4(&v) == uia_i4_prop_val, "Unexpected I4 %#lx\n", V_I4(&v)); - ok_method_sequence(node_from_hwnd6, "node_from_hwnd6"); + hr = UiaGetPropertyValue(node2, UIA_ControlTypePropertyId, &v); + ok(hr == S_OK, "Unexpected hr %#lx\n", hr); + ok(V_VT(&v) == VT_I4, "Unexpected VT %d\n", V_VT(&v)); + ok(V_I4(&v) == uia_i4_prop_val, "Unexpected I4 %#lx\n", V_I4(&v)); + ok_method_sequence(node_from_hwnd6, "node_from_hwnd6");
- /* Get a new node for the same provider. */ - hr = UiaGetPropertyValue(node, UIA_LabeledByPropertyId, &v); - ok(hr == S_OK, "Unexpected hr %#lx\n", hr); - ok(Provider_child.ref == 3, "Unexpected refcnt %ld\n", Provider_child.ref); + /* Get a new node for the same provider. */ + hr = UiaGetPropertyValue(node, UIA_LabeledByPropertyId, &v); + ok(hr == S_OK, "Unexpected hr %#lx\n", hr); + ok(Provider_child.ref == 3, "Unexpected refcnt %ld\n", Provider_child.ref);
- hr = UiaHUiaNodeFromVariant(&v, &node3); - ok(hr == S_OK, "Unexpected hr %#lx\n", hr); - hr = UiaGetPropertyValue(node3, UIA_ProviderDescriptionPropertyId, &v); - todo_wine ok(hr == S_OK, "Unexpected hr %#lx\n", hr); - if (SUCCEEDED(hr)) - { - check_node_provider_desc_prefix(V_BSTR(&v), GetCurrentProcessId(), NULL); - check_node_provider_desc(V_BSTR(&v), L"Main", L"Provider_child", TRUE); - VariantClear(&v); - } + hr = UiaHUiaNodeFromVariant(&v, &node3); + ok(hr == S_OK, "Unexpected hr %#lx\n", hr); + hr = UiaGetPropertyValue(node3, UIA_ProviderDescriptionPropertyId, &v); + todo_wine ok(hr == S_OK, "Unexpected hr %#lx\n", hr); + if (SUCCEEDED(hr)) + { + check_node_provider_desc_prefix(V_BSTR(&v), GetCurrentProcessId(), NULL); + check_node_provider_desc(V_BSTR(&v), L"Main", L"Provider_child", TRUE); + VariantClear(&v); + }
- hr = UiaGetPropertyValue(node3, UIA_ControlTypePropertyId, &v); - ok(hr == S_OK, "Unexpected hr %#lx\n", hr); - ok(V_VT(&v) == VT_I4, "Unexpected VT %d\n", V_VT(&v)); - ok(V_I4(&v) == uia_i4_prop_val, "Unexpected I4 %#lx\n", V_I4(&v)); - ok_method_sequence(node_from_hwnd6, "node_from_hwnd6"); + hr = UiaGetPropertyValue(node3, UIA_ControlTypePropertyId, &v); + ok(hr == S_OK, "Unexpected hr %#lx\n", hr); + ok(V_VT(&v) == VT_I4, "Unexpected VT %d\n", V_VT(&v)); + ok(V_I4(&v) == uia_i4_prop_val, "Unexpected I4 %#lx\n", V_I4(&v)); + ok_method_sequence(node_from_hwnd6, "node_from_hwnd6");
- /* - * Both node2 and node3 represent Provider_child, one call to - * UiaDisconnectProvider disconnects both. - */ - hr = pUiaDisconnectProvider(&Provider_child.IRawElementProviderSimple_iface); - ok(hr == S_OK, "Unexpected hr %#lx\n", hr); - ok(Provider_child.ref == 1, "Unexpected refcnt %ld\n", Provider_child.ref); + /* + * Both node2 and node3 represent Provider_child, one call to + * UiaDisconnectProvider disconnects both. + */ + hr = pUiaDisconnectProvider(&Provider_child.IRawElementProviderSimple_iface); + ok(hr == S_OK, "Unexpected hr %#lx\n", hr); + ok(Provider_child.ref == 1, "Unexpected refcnt %ld\n", Provider_child.ref);
- hr = UiaGetPropertyValue(node2, UIA_ControlTypePropertyId, &v); - ok(hr == UIA_E_ELEMENTNOTAVAILABLE, "Unexpected hr %#lx\n", hr); + hr = UiaGetPropertyValue(node2, UIA_ControlTypePropertyId, &v); + ok(hr == UIA_E_ELEMENTNOTAVAILABLE, "Unexpected hr %#lx\n", hr);
- hr = UiaGetPropertyValue(node3, UIA_ControlTypePropertyId, &v); - ok(hr == UIA_E_ELEMENTNOTAVAILABLE, "Unexpected hr %#lx\n", hr); - ok_method_sequence(disconnect_prov1, "disconnect_prov1"); + hr = UiaGetPropertyValue(node3, UIA_ControlTypePropertyId, &v); + ok(hr == UIA_E_ELEMENTNOTAVAILABLE, "Unexpected hr %#lx\n", hr); + ok_method_sequence(disconnect_prov1, "disconnect_prov1");
- ok(UiaNodeRelease(node2), "UiaNodeRelease returned FALSE\n"); - ok(UiaNodeRelease(node3), "UiaNodeRelease returned FALSE\n"); - } + ok(UiaNodeRelease(node2), "UiaNodeRelease returned FALSE\n"); + ok(UiaNodeRelease(node3), "UiaNodeRelease returned FALSE\n");
/* * Returns same failure code as UiaGetRuntimeId when we fail to get a diff --git a/dlls/uiautomationcore/uia_client.c b/dlls/uiautomationcore/uia_client.c index a3b04479b13..16c00bf7124 100644 --- a/dlls/uiautomationcore/uia_client.c +++ b/dlls/uiautomationcore/uia_client.c @@ -492,19 +492,6 @@ static struct uia_node *unsafe_impl_from_IWineUiaNode(IWineUiaNode *iface) /* * IWineUiaProvider interface. */ -struct uia_provider { - IWineUiaProvider IWineUiaProvider_iface; - LONG ref; - - IRawElementProviderSimple *elprov; - IWineUiaNode *node; -}; - -static inline struct uia_provider *impl_from_IWineUiaProvider(IWineUiaProvider *iface) -{ - return CONTAINING_RECORD(iface, struct uia_provider, IWineUiaProvider_iface); -} - static HRESULT WINAPI uia_provider_QueryInterface(IWineUiaProvider *iface, REFIID riid, void **ppv) { *ppv = NULL; @@ -639,15 +626,26 @@ static HRESULT uia_provider_get_elem_prop_val(struct uia_provider *prov,
hr = IUnknown_QueryInterface(V_UNKNOWN(&v), &IID_IRawElementProviderSimple, (void **)&elprov); + VariantClear(&v); if (FAILED(hr)) goto exit;
hr = UiaNodeFromProvider(elprov, &node); + IRawElementProviderSimple_Release(elprov); if (SUCCEEDED(hr)) { - get_variant_for_node(node, ret_val); - VariantClear(&v); - IRawElementProviderSimple_Release(elprov); + if (prov->is_nested_node_elprov) + { + LRESULT lr = uia_lresult_from_node(node); + + if (!lr) + return E_FAIL; + + V_VT(ret_val) = VT_I4; + V_I4(ret_val) = lr; + } + else + get_variant_for_node(node, ret_val); } break; } @@ -746,6 +744,46 @@ static HRESULT uia_provider_get_special_prop_val(struct uia_provider *prov, return S_OK; }
+static HRESULT uia_node_from_lresult(LRESULT lr, HUIANODE *huianode); +static HRESULT uia_provider_get_nested_node_prop_val(struct uia_provider *prov, + const struct uia_prop_info *prop_info, VARIANT *ret_val) +{ + HRESULT hr; + VARIANT v; + + if (prop_info->type == UIAutomationType_ElementArray) + { + FIXME("Element array property type currently unsupported for nested nodes.\n"); + return E_NOTIMPL; + } + + hr = IWineUiaNode_get_prop_val(prov->node, prop_info->guid, &v); + if (FAILED(hr)) + return hr; + + switch (prop_info->type) + { + case UIAutomationType_Element: + { + HUIANODE node; + + hr = uia_node_from_lresult((LRESULT)V_I4(&v), &node); + if (FAILED(hr)) + return hr; + + get_variant_for_node(node, ret_val); + VariantClear(&v); + break; + } + + default: + *ret_val = v; + break; + } + + return S_OK; +} + static HRESULT WINAPI uia_provider_get_prop_val(IWineUiaProvider *iface, const struct uia_prop_info *prop_info, VARIANT *ret_val) { @@ -755,15 +793,7 @@ static HRESULT WINAPI uia_provider_get_prop_val(IWineUiaProvider *iface,
VariantInit(ret_val); if (prov->node) - { - if (prop_info->type == UIAutomationType_Element || prop_info->type == UIAutomationType_ElementArray) - { - FIXME("Element property types currently unsupported for nested nodes.\n"); - return E_NOTIMPL; - } - - return IWineUiaNode_get_prop_val(prov->node, prop_info->guid, ret_val); - } + return uia_provider_get_nested_node_prop_val(prov, prop_info, ret_val);
switch (prop_info->prop_type) { @@ -1068,6 +1098,7 @@ static HRESULT create_wine_uia_nested_node_provider(struct uia_node *node, LRESU prov = impl_from_IWineUiaProvider(node_data->prov); IWineUiaProvider_AddRef(node_data->prov); git_cookie = node_data->git_cookie; + prov->is_nested_node_elprov = FALSE;
node_data->git_cookie = 0; IWineUiaNode_Release(&node_data->IWineUiaNode_iface); @@ -1140,6 +1171,34 @@ static HRESULT uia_get_provider_from_hwnd(struct uia_node *node) return SendMessageW(client_thread.hwnd, WM_UIA_CLIENT_GET_NODE_PROV, (WPARAM)&args, (LPARAM)node); }
+static HRESULT uia_node_from_lresult(LRESULT lr, HUIANODE *huianode) +{ + struct uia_node *node; + HRESULT hr; + + *huianode = NULL; + node = heap_alloc_zero(sizeof(*node)); + if (!node) + return E_OUTOFMEMORY; + + node->IWineUiaNode_iface.lpVtbl = &uia_node_vtbl; + list_init(&node->prov_thread_list_entry); + list_init(&node->node_map_list_entry); + node->ref = 1; + + uia_start_client_thread(); + hr = create_wine_uia_nested_node_provider(node, lr, FALSE); + if (FAILED(hr)) + { + heap_free(node); + return hr; + } + + *huianode = (void *)&node->IWineUiaNode_iface; + + return hr; +} + /*********************************************************************** * UiaNodeFromHandle (uiautomationcore.@) */ diff --git a/dlls/uiautomationcore/uia_private.h b/dlls/uiautomationcore/uia_private.h index c94f2b6c1eb..c4797e70c8f 100644 --- a/dlls/uiautomationcore/uia_private.h +++ b/dlls/uiautomationcore/uia_private.h @@ -50,6 +50,21 @@ static inline struct uia_node *impl_from_IWineUiaNode(IWineUiaNode *iface) return CONTAINING_RECORD(iface, struct uia_node, IWineUiaNode_iface); }
+struct uia_provider { + IWineUiaProvider IWineUiaProvider_iface; + LONG ref; + + IRawElementProviderSimple *elprov; + IWineUiaNode *node; + + BOOL is_nested_node_elprov; +}; + +static inline struct uia_provider *impl_from_IWineUiaProvider(IWineUiaProvider *iface) +{ + return CONTAINING_RECORD(iface, struct uia_provider, IWineUiaProvider_iface); +} + /* uia_client.c */ int uia_compare_runtime_ids(SAFEARRAY *sa1, SAFEARRAY *sa2) DECLSPEC_HIDDEN;
@@ -59,3 +74,4 @@ const struct uia_prop_info *uia_prop_info_from_id(PROPERTYID prop_id) DECLSPEC_H /* uia_provider.c */ void uia_stop_provider_thread(void) DECLSPEC_HIDDEN; void uia_provider_thread_remove_node(HUIANODE node) DECLSPEC_HIDDEN; +LRESULT uia_lresult_from_node(HUIANODE huianode) DECLSPEC_HIDDEN; diff --git a/dlls/uiautomationcore/uia_provider.c b/dlls/uiautomationcore/uia_provider.c index 574fa3f08f2..84b206410ce 100644 --- a/dlls/uiautomationcore/uia_provider.c +++ b/dlls/uiautomationcore/uia_provider.c @@ -1234,10 +1234,11 @@ void uia_provider_thread_disconnect_node(SAFEARRAY *sa) static HRESULT uia_provider_thread_add_node(HUIANODE node) { struct uia_node *node_data = impl_from_IWineUiaNode((IWineUiaNode *)node); + struct uia_provider *prov_data = impl_from_IWineUiaProvider(node_data->prov); SAFEARRAY *sa; HRESULT hr;
- node_data->nested_node = TRUE; + node_data->nested_node = prov_data->is_nested_node_elprov = TRUE;
hr = UiaGetRuntimeId(node, &sa); if (FAILED(hr)) @@ -1432,7 +1433,7 @@ void uia_stop_provider_thread(void) * Automation has to work regardless of whether or not COM is initialized on * the thread calling UiaReturnRawElementProvider. */ -static LRESULT uia_lresult_from_node(HUIANODE huianode) +LRESULT uia_lresult_from_node(HUIANODE huianode) { if (!uia_start_provider_thread()) {