HRESULT COVTSF::_InvokeKeyHandler(_In_ ITfContext *pContext, UINT code, WCHAR wch, DWORD flags, _KEYSTROKE_STATE keyState)
{
flags;
CKeyHandlerEditSession* pEditSession = nullptr;
HRESULT hr = E_FAIL;
// we'll insert a char ourselves in place of this keystroke
pEditSession = new (std::nothrow) CKeyHandlerEditSession(this, pContext, code, wch, keyState);
if (pEditSession == nullptr)
{
goto Exit;
}
//
// Call CKeyHandlerEditSession::DoEditSession().
//
// Do not specify TF_ES_SYNC so edit session is not invoked on WinWord
//
hr = pContext->RequestEditSession(_tfClientId, pEditSession, TF_ES_ASYNCDONTCARE | TF_ES_READWRITE, &hr);
pEditSession->Release();
Exit:
return hr;
}
HRESULT CCandidateListUIPresenter::_CandidateChangeNotification(_In_ enum CANDWND_ACTION action)
{
HRESULT hr = E_FAIL;
TfClientId tfClientId = _pTextService->_GetClientId();
ITfThreadMgr* pThreadMgr = nullptr;
ITfDocumentMgr* pDocumentMgr = nullptr;
ITfContext* pContext = nullptr;
_KEYSTROKE_STATE KeyState;
KeyState.Category = _Category;
KeyState.Function = FUNCTION_FINALIZE_CANDIDATELIST;
if (CAND_ITEM_SELECT != action)
{
goto Exit;
}
pThreadMgr = _pTextService->_GetThreadMgr();
if (nullptr == pThreadMgr)
{
goto Exit;
}
hr = pThreadMgr->GetFocus(&pDocumentMgr);
if (FAILED(hr))
{
goto Exit;
}
hr = pDocumentMgr->GetTop(&pContext);
if (FAILED(hr))
{
pDocumentMgr->Release();
goto Exit;
}
CKeyHandlerEditSession *pEditSession = new (std::nothrow) CKeyHandlerEditSession(_pTextService, pContext, 0, 0, KeyState);
if (nullptr != pEditSession)
{
HRESULT hrSession = S_OK;
hr = pContext->RequestEditSession(tfClientId, pEditSession, TF_ES_SYNC | TF_ES_READWRITE, &hrSession);
if (hrSession == TF_E_SYNCHRONOUS || hrSession == TS_E_READONLY)
{
hr = pContext->RequestEditSession(tfClientId, pEditSession, TF_ES_ASYNC | TF_ES_READWRITE, &hrSession);
}
pEditSession->Release();
}
pContext->Release();
pDocumentMgr->Release();
Exit:
return hr;
}
HRESULT CTextService::_InvokeKeyHandler(ITfContext *pContext, WPARAM wParam, LPARAM lParam)
{
CKeyHandlerEditSession *pEditSession;
HRESULT hr = E_FAIL;
// Insert a char in place of this keystroke
if ((pEditSession = new CKeyHandlerEditSession(this, pContext, wParam)) == NULL)
goto Exit;
// a lock is required
// nb: this method is one of the few places where it is legal to use
// the TF_ES_SYNC flag
hr = pContext->RequestEditSession(_tfClientId, pEditSession, TF_ES_SYNC | TF_ES_READWRITE, &hr);
pEditSession->Release();
Exit:
return hr;
}