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272 lines
9.5 KiB
272 lines
9.5 KiB
//*********************************************************************
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//* Microsoft Windows **
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//* Copyright(c) Microsoft Corp., 1994-1995 **
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//*********************************************************************
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//
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// CLSUTIL.H - header file for utility C++ classes
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//
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// HISTORY:
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//
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// 12/07/94 jeremys Borrowed from WNET common library
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//
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#ifndef _CLSUTIL_H_
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#define _CLSUTIL_H_
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/*************************************************************************
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NAME: BUFFER_BASE
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SYNOPSIS: Base class for transient buffer classes
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INTERFACE: BUFFER_BASE()
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Construct with optional size of buffer to allocate.
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Resize()
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Resize buffer to specified size. Returns TRUE if
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successful.
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QuerySize()
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Return the current size of the buffer in bytes.
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QueryPtr()
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Return a pointer to the buffer.
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PARENT: None
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USES: None
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CAVEATS: This is an abstract class, which unifies the interface
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of BUFFER, GLOBAL_BUFFER, etc.
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NOTES: In standard OOP fashion, the buffer is deallocated in
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the destructor.
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HISTORY:
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03/24/93 gregj Created base class
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**************************************************************************/
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class BUFFER_BASE
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{
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protected:
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UINT _cb;
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virtual BOOL Alloc( UINT cbBuffer ) = 0;
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virtual BOOL Realloc( UINT cbBuffer ) = 0;
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public:
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BUFFER_BASE()
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{ _cb = 0; } // buffer not allocated yet
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~BUFFER_BASE()
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{ _cb = 0; } // buffer size no longer valid
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BOOL Resize( UINT cbNew );
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UINT QuerySize() const { return _cb; };
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};
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#define GLOBAL_BUFFER BUFFER
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/*************************************************************************
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NAME: BUFFER
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SYNOPSIS: Wrapper class for new and delete
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INTERFACE: BUFFER()
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Construct with optional size of buffer to allocate.
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Resize()
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Resize buffer to specified size. Only works if the
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buffer hasn't been allocated yet.
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QuerySize()
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Return the current size of the buffer in bytes.
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QueryPtr()
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Return a pointer to the buffer.
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PARENT: BUFFER_BASE
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USES: operator new, operator delete
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CAVEATS:
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NOTES: In standard OOP fashion, the buffer is deallocated in
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the destructor.
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HISTORY:
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03/24/93 gregj Created
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**************************************************************************/
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class BUFFER : public BUFFER_BASE
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{
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protected:
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TCHAR *_lpBuffer;
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virtual BOOL Alloc( UINT cbBuffer );
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virtual BOOL Realloc( UINT cbBuffer );
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public:
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BUFFER( UINT cbInitial=0 );
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~BUFFER();
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BOOL Resize( UINT cbNew );
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TCHAR * QueryPtr() const { return (TCHAR *)_lpBuffer; }
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operator TCHAR *() const { return (TCHAR *)_lpBuffer; }
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};
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class RegEntry
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{
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public:
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RegEntry(const TCHAR *pszSubKey, HKEY hkey = HKEY_CURRENT_USER, REGSAM regsam = KEY_READ|KEY_WRITE);
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~RegEntry();
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long GetError() { return _error; }
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long SetValue(const TCHAR *pszValue, const TCHAR *string);
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long SetValue(const TCHAR *pszValue, unsigned long dwNumber);
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TCHAR * GetString(const TCHAR *pszValue, TCHAR *string, unsigned long length);
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long GetNumber(const TCHAR *pszValue, long dwDefault = 0);
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long DeleteValue(const TCHAR *pszValue);
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long FlushKey();
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long MoveToSubKey(const TCHAR *pszSubKeyName);
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HKEY GetKey() { return _hkey; }
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private:
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HKEY _hkey;
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long _error;
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BOOL bhkeyValid;
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};
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class RegEnumValues
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{
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public:
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RegEnumValues(RegEntry *pRegEntry);
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~RegEnumValues();
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long Next();
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TCHAR * GetName() {return pchName;}
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DWORD GetType() {return dwType;}
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LPBYTE GetData() {return pbValue;}
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DWORD GetDataLength() {return dwDataLength;}
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long GetError() { return _error; }
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private:
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RegEntry * pRegEntry;
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DWORD iEnum;
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DWORD cEntries;
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TCHAR * pchName;
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LPBYTE pbValue;
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DWORD dwType;
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DWORD dwDataLength;
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DWORD cMaxValueName;
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DWORD cMaxData;
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LONG _error;
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};
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/*************************************************************************
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NAME: WAITCURSOR
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SYNOPSIS: Sets the cursor to an hourclass until object is destructed
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**************************************************************************/
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class WAITCURSOR
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{
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private:
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HCURSOR m_curOld;
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HCURSOR m_curNew;
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public:
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WAITCURSOR() { m_curNew = ::LoadCursor( NULL, IDC_WAIT ); m_curOld = ::SetCursor( m_curNew ); }
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~WAITCURSOR() { ::SetCursor( m_curOld ); }
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};
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/*************************************************************************
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NAME: CAccessibleWrapper
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SYNOPSIS: Sets the cursor to an hourclass until object is destructed
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**************************************************************************/
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// Generic CAccessibleWrapper class - just calls through on all methods.
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// Add overriding behavior in classes derived from this.
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class CAccessibleWrapper: public IAccessible,
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public IOleWindow,
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public IEnumVARIANT
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{
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// We need to do our own refcounting for this wrapper object
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ULONG m_ref;
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// Need ptr to the IAccessible - also keep around ptrs to EnumVar and
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// OleWindow as part of this object, so we can filter those interfaces
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// and trap their QI's...
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// (We leave pEnumVar and OleWin as NULL until we need them)
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IAccessible * m_pAcc;
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IEnumVARIANT * m_pEnumVar;
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IOleWindow * m_pOleWin;
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public:
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CAccessibleWrapper( IAccessible * pAcc );
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virtual ~CAccessibleWrapper();
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// IUnknown
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// (We do our own ref counting)
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virtual STDMETHODIMP QueryInterface(REFIID riid, void** ppv);
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virtual STDMETHODIMP_(ULONG) AddRef();
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virtual STDMETHODIMP_(ULONG) Release();
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// IDispatch
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virtual STDMETHODIMP GetTypeInfoCount(UINT* pctinfo);
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virtual STDMETHODIMP GetTypeInfo(UINT itinfo, LCID lcid, ITypeInfo** pptinfo);
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virtual STDMETHODIMP GetIDsOfNames(REFIID riid, OLECHAR** rgszNames, UINT cNames,
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LCID lcid, DISPID* rgdispid);
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virtual STDMETHODIMP Invoke(DISPID dispidMember, REFIID riid, LCID lcid, WORD wFlags,
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DISPPARAMS* pdispparams, VARIANT* pvarResult, EXCEPINFO* pexcepinfo,
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UINT* puArgErr);
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// IAccessible
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virtual STDMETHODIMP get_accParent(IDispatch ** ppdispParent);
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virtual STDMETHODIMP get_accChildCount(long* pChildCount);
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virtual STDMETHODIMP get_accChild(VARIANT varChild, IDispatch ** ppdispChild);
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virtual STDMETHODIMP get_accName(VARIANT varChild, BSTR* pszName);
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virtual STDMETHODIMP get_accValue(VARIANT varChild, BSTR* pszValue);
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virtual STDMETHODIMP get_accDescription(VARIANT varChild, BSTR* pszDescription);
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virtual STDMETHODIMP get_accRole(VARIANT varChild, VARIANT *pvarRole);
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virtual STDMETHODIMP get_accState(VARIANT varChild, VARIANT *pvarState);
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virtual STDMETHODIMP get_accHelp(VARIANT varChild, BSTR* pszHelp);
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virtual STDMETHODIMP get_accHelpTopic(BSTR* pszHelpFile, VARIANT varChild, long* pidTopic);
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virtual STDMETHODIMP get_accKeyboardShortcut(VARIANT varChild, BSTR* pszKeyboardShortcut);
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virtual STDMETHODIMP get_accFocus(VARIANT * pvarFocusChild);
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virtual STDMETHODIMP get_accSelection(VARIANT * pvarSelectedChildren);
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virtual STDMETHODIMP get_accDefaultAction(VARIANT varChild, BSTR* pszDefaultAction);
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virtual STDMETHODIMP accSelect(long flagsSel, VARIANT varChild);
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virtual STDMETHODIMP accLocation(long* pxLeft, long* pyTop, long* pcxWidth, long* pcyHeight, VARIANT varChild);
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virtual STDMETHODIMP accNavigate(long navDir, VARIANT varStart, VARIANT * pvarEndUpAt);
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virtual STDMETHODIMP accHitTest(long xLeft, long yTop, VARIANT * pvarChildAtPoint);
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virtual STDMETHODIMP accDoDefaultAction(VARIANT varChild);
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virtual STDMETHODIMP put_accName(VARIANT varChild, BSTR szName);
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virtual STDMETHODIMP put_accValue(VARIANT varChild, BSTR pszValue);
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// IEnumVARIANT
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virtual STDMETHODIMP Next(ULONG celt, VARIANT* rgvar, ULONG * pceltFetched);
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virtual STDMETHODIMP Skip(ULONG celt);
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virtual STDMETHODIMP Reset(void);
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virtual STDMETHODIMP Clone(IEnumVARIANT ** ppenum);
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// IOleWindow
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virtual STDMETHODIMP GetWindow(HWND* phwnd);
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virtual STDMETHODIMP ContextSensitiveHelp(BOOL fEnterMode);
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};
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#endif // _CLSUTIL_H_
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