75 lines
1.3 KiB
C
75 lines
1.3 KiB
C
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//
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// editsess.h
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//
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// CEditSessionBase declaration.
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//
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#ifndef EDITSESS_H
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#define EDITSESS_H
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class CEditSessionBase : public ITfEditSession
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{
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public:
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CEditSessionBase(ITfContext *pContext)
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{
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_cRef = 1;
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_pContext = pContext;
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_pContext->AddRef();
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}
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virtual ~CEditSessionBase()
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{
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_pContext->Release();
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}
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// IUnknown
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STDMETHODIMP QueryInterface(REFIID riid, void **ppvObj)
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{
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if (ppvObj == NULL)
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return E_INVALIDARG;
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*ppvObj = NULL;
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if (IsEqualIID(riid, IID_IUnknown) ||
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IsEqualIID(riid, IID_ITfEditSession))
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{
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*ppvObj = (ITfLangBarItemButton *)this;
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}
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if (*ppvObj)
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{
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AddRef();
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return S_OK;
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}
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return E_NOINTERFACE;
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}
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STDMETHODIMP_(ULONG) AddRef(void)
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{
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return ++_cRef;
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}
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STDMETHODIMP_(ULONG) Release(void)
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{
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LONG cr = --_cRef;
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assert(_cRef >= 0);
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if (_cRef == 0)
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{
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delete this;
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}
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return cr;
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}
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// ITfEditSession
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virtual STDMETHODIMP DoEditSession(TfEditCookie ec) = 0;
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protected:
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ITfContext *_pContext;
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private:
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LONG _cRef; // COM ref count
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};
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#endif // EDITSESS_H
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