BOOL CTextService::_InitLanguageBar()
{
ITfLangBarItemMgr *pLangBarItemMgr;
BOOL fRet = FALSE;
BOOL fRetI = FALSE;
_pLangBarItem = nullptr;
_pLangBarItemI = nullptr;
if(_pThreadMgr->QueryInterface(IID_PPV_ARGS(&pLangBarItemMgr)) == S_OK)
{
try
{
_pLangBarItem = new CLangBarItemButton(this, c_guidLangBarItemButton);
if(pLangBarItemMgr->AddItem(_pLangBarItem) == S_OK)
{
fRet = TRUE;
}
else
{
SafeRelease(&_pLangBarItem);
}
}
catch(...)
{
}
if(IsWindowsVersion62OrLater())
{
try
{
_pLangBarItemI = new CLangBarItemButton(this, GUID_LBI_INPUTMODE);
if(pLangBarItemMgr->AddItem(_pLangBarItemI) == S_OK)
{
fRetI = TRUE;
}
else
{
SafeRelease(&_pLangBarItemI);
}
}
catch(...)
{
}
}
else
{
fRetI = TRUE;
}
SafeRelease(&pLangBarItemMgr);
}
return (fRet && fRetI);
}
void TextService::addButton(LangBarButton* button) {
if(button) {
langBarButtons_.push_back(button);
button->AddRef();
if(isActivated()) {
ITfLangBarItemMgr* langBarItemMgr;
if(threadMgr_->QueryInterface(IID_ITfLangBarItemMgr, (void**)&langBarItemMgr) == S_OK) {
langBarItemMgr->AddItem(button);
langBarItemMgr->Release();
}
}
}
}
HRESULT CLangBarItemButton::_AddItem(_In_ ITfThreadMgr *pThreadMgr)
{
HRESULT hr = S_OK;
ITfLangBarItemMgr* pLangBarItemMgr = nullptr;
if (_isAddedToLanguageBar || pThreadMgr == nullptr)
{
return S_OK;
}
hr = pThreadMgr->QueryInterface(IID_ITfLangBarItemMgr, (void **)&pLangBarItemMgr);
if (SUCCEEDED(hr) && pLangBarItemMgr)
{
hr = pLangBarItemMgr->AddItem(this);
if (SUCCEEDED(hr))
{
_isAddedToLanguageBar = TRUE;
}
pLangBarItemMgr->Release();
}
return hr;
}