First commit.

TipCandidateString.cpp

@@ -0,0 +1,128 @@
+// 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 "TipCandidateString.h"
+
+HRESULT CTipCandidateString::CreateInstance(_Outptr_ CTipCandidateString **ppobj)
+{  
+    if (ppobj == nullptr)
+    {
+        return E_INVALIDARG;
+    }
+    *ppobj = nullptr;
+
+    *ppobj = new (std::nothrow) CTipCandidateString();
+    if (*ppobj == nullptr) 
+    {
+        return E_OUTOFMEMORY;
+    }
+
+    return S_OK;
+}
+
+HRESULT CTipCandidateString::CreateInstance(REFIID riid, _Outptr_ void **ppvObj)
+{ 
+    if (ppvObj == nullptr)
+    {
+        return E_INVALIDARG;
+    }
+    *ppvObj = nullptr;
+
+    *ppvObj = new (std::nothrow) CTipCandidateString();
+    if (*ppvObj == nullptr) 
+    {
+        return E_OUTOFMEMORY;
+    }
+
+    return ((CTipCandidateString*)(*ppvObj))->QueryInterface(riid, ppvObj);
+}
+
+CTipCandidateString::CTipCandidateString(void)
+{
+    _refCount = 0;
+    _index = 0;
+}
+
+CTipCandidateString::~CTipCandidateString()
+{
+}
+
+// IUnknown methods
+STDMETHODIMP CTipCandidateString::QueryInterface(REFIID riid, _Outptr_ void **ppvObj)
+{
+    if (ppvObj == nullptr)
+    {
+        return E_POINTER;
+    }
+    *ppvObj = nullptr;
+
+    if (IsEqualIID(riid, IID_IUnknown))
+    {
+        *ppvObj = (CTipCandidateString*)this;
+    }
+    else if (IsEqualIID(riid, IID_ITfCandidateString))
+    {
+        *ppvObj = (CTipCandidateString*)this;
+    }
+
+    if (*ppvObj == nullptr)
+    {
+        return E_NOINTERFACE;
+    }
+
+    AddRef();
+    return S_OK;
+}
+
+STDMETHODIMP_(ULONG) CTipCandidateString::AddRef(void)
+{
+    return (ULONG)InterlockedIncrement((LONG*)&_refCount);
+}
+
+STDMETHODIMP_(ULONG) CTipCandidateString::Release(void)
+{
+    ULONG refT = (ULONG)InterlockedDecrement((LONG*)&_refCount);
+    if (0 < refT)
+    {
+        return refT;
+    }
+
+    delete this;
+
+    return 0;
+}
+
+// ITfCandidateString methods
+STDMETHODIMP CTipCandidateString::GetString(BSTR *pbstr)
+{
+    *pbstr = SysAllocString(_candidateStr.c_str());
+    return S_OK;
+}
+
+STDMETHODIMP CTipCandidateString::GetIndex(_Out_ ULONG *pnIndex)
+{
+    if (pnIndex == nullptr)
+    {
+        return E_POINTER;
+    }
+
+    *pnIndex = _index;
+    return S_OK;
+}
+
+STDMETHODIMP CTipCandidateString::SetIndex(ULONG uIndex)
+{
+    _index = uIndex;
+    return S_OK;
+}
+
+STDMETHODIMP CTipCandidateString::SetString(_In_ const WCHAR *pch, DWORD_PTR length)
+{
+    _candidateStr.assign(pch, 0, length);
+    return S_OK;
+}