68 lines
2 KiB
C
68 lines
2 KiB
C
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/*****************************************************************************
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*
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* ftpglob.h - HGLOBAL babysitting
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*
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* Included from ftpview.h
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*
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*****************************************************************************/
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#ifndef _FTPGLOB_H
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#define _FTPGLOB_H
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/*****************************************************************************
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*
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* This is the generic IUnknown wrapper that GlobalFree's its
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* charge when released.
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*
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*****************************************************************************/
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/*****************************************************************************
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*
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* CFtpGlob
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*
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* CFtpGlob is used as the punkForRelease when we hand a shared HGLOBAL
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* out to somebody else. We can't simply use the DataObject itself,
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* because that would result in havoc if the DataObject itself decided
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* to free the HGLOBAL while there were still outstanding references to it.
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*
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* It's also used when we need a refcounted string. Just put the
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* string into the hglob and have fun.
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*
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*****************************************************************************/
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class CFtpGlob : public IUnknown
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{
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public:
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//////////////////////////////////////////////////////
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// Public Interfaces
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//////////////////////////////////////////////////////
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// *** IUnknown ***
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virtual STDMETHODIMP_(ULONG) AddRef(void);
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virtual STDMETHODIMP_(ULONG) Release(void);
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virtual STDMETHODIMP QueryInterface(REFIID riid, LPVOID * ppvObj);
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public:
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CFtpGlob();
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~CFtpGlob(void);
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// Public Member Functions
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HRESULT SetHGlob(HGLOBAL hglob) {m_hglob = hglob; return S_OK;};
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HGLOBAL GetHGlob(void) {return m_hglob;};
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LPCTSTR GetHGlobAsTCHAR(void) {return (LPCTSTR) m_hglob;};
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// Friend Functions
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friend IUnknown * CFtpGlob_Create(HGLOBAL hglob);
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friend CFtpGlob * CFtpGlob_CreateStr(LPCTSTR pszStr);
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protected:
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// Private Member Variables
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int m_cRef;
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HGLOBAL m_hglob; // The HGLOBAL we are babysitting
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};
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#endif // _FTPGLOB_H
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