First commit.

FunctionProviderSink.cpp

@@ -0,0 +1,55 @@
+// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
+// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
+// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
+// PARTICULAR PURPOSE.
+//
+// Copyright (c) Microsoft Corporation. All rights reserved
+
+#include "Private.h"
+#include "SampleIME.h"
+#include "SearchCandidateProvider.h"
+
+//+---------------------------------------------------------------------------
+//
+// _InitFunctionProviderSink
+//
+//----------------------------------------------------------------------------
+
+BOOL CSampleIME::_InitFunctionProviderSink()
+{
+    ITfSourceSingle* pSourceSingle = nullptr;
+    BOOL ret = FALSE;
+    if (SUCCEEDED(_pThreadMgr->QueryInterface(IID_ITfSourceSingle, (void **)&pSourceSingle)))
+    {
+        IUnknown* punk = nullptr;
+        if (SUCCEEDED(QueryInterface(IID_IUnknown, (void **)&punk)))
+        {
+            if (SUCCEEDED(pSourceSingle->AdviseSingleSink(_tfClientId, IID_ITfFunctionProvider, punk)))
+            {
+                if (SUCCEEDED(CSearchCandidateProvider::CreateInstance(&_pITfFnSearchCandidateProvider, (ITfTextInputProcessorEx*)this)))
+                {
+                    ret = TRUE;
+                }
+            }
+            punk->Release();
+        }
+        pSourceSingle->Release();
+    }
+    return ret;
+}
+
+//+---------------------------------------------------------------------------
+//
+// _UninitFunctionProviderSink
+//
+//----------------------------------------------------------------------------
+
+void CSampleIME::_UninitFunctionProviderSink()
+{
+    ITfSourceSingle* pSourceSingle = nullptr;
+    if (SUCCEEDED(_pThreadMgr->QueryInterface(IID_ITfSourceSingle, (void **)&pSourceSingle)))
+    {
+        pSourceSingle->UnadviseSingleSink(_tfClientId, IID_ITfFunctionProvider);
+        pSourceSingle->Release();
+    }
+}