ordinal.c

ReactOS是一些高手根据Windows XP的内核编写出的类XP。内核实现机理和API函数调用几乎相同。甚至可以兼容XP的程序。喜欢研究系统内核的人可以看一看。

 *
 * PARAMS
 *  lpszDest  [O] Destination for Id string
 *  dwDestLen [I] Length of lpszDest
 *
 * RETURNS
 *  TRUE,  If the string was created successfully
 *  FALSE, Otherwise
 */
BOOL WINAPI SHAboutInfoA(LPSTR lpszDest, DWORD dwDestLen)
{
  WCHAR buff[2084];

  TRACE("(%p,%d)\n", lpszDest, dwDestLen);

  if (lpszDest && SHAboutInfoW(buff, dwDestLen))
  {
    WideCharToMultiByte(CP_ACP, 0, buff, -1, lpszDest, dwDestLen, NULL, NULL);
    return TRUE;
  }
  return FALSE;
}

/*************************************************************************
 *      @	[SHLWAPI.161]
 *
 * Unicode version of SHAboutInfoA.
 */
BOOL WINAPI SHAboutInfoW(LPWSTR lpszDest, DWORD dwDestLen)
{
  static const WCHAR szIEKey[] = { 'S','O','F','T','W','A','R','E','\\',
    'M','i','c','r','o','s','o','f','t','\\','I','n','t','e','r','n','e','t',
    ' ','E','x','p','l','o','r','e','r','\0' };
  static const WCHAR szWinNtKey[] = { 'S','O','F','T','W','A','R','E','\\',
    'M','i','c','r','o','s','o','f','t','\\','W','i','n','d','o','w','s',' ',
    'N','T','\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n','\0' };
  static const WCHAR szWinKey[] = { 'S','O','F','T','W','A','R','E','\\',
    'M','i','c','r','o','s','o','f','t','\\','W','i','n','d','o','w','s','\\',
    'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\0' };
  static const WCHAR szRegKey[] = { 'S','O','F','T','W','A','R','E','\\',
    'M','i','c','r','o','s','o','f','t','\\','I','n','t','e','r','n','e','t',
    ' ','E','x','p','l','o','r','e','r','\\',
    'R','e','g','i','s','t','r','a','t','i','o','n','\0' };
  static const WCHAR szVersion[] = { 'V','e','r','s','i','o','n','\0' };
  static const WCHAR szCustomized[] = { 'C','u','s','t','o','m','i','z','e','d',
    'V','e','r','s','i','o','n','\0' };
  static const WCHAR szOwner[] = { 'R','e','g','i','s','t','e','r','e','d',
    'O','w','n','e','r','\0' };
  static const WCHAR szOrg[] = { 'R','e','g','i','s','t','e','r','e','d',
    'O','r','g','a','n','i','z','a','t','i','o','n','\0' };
  static const WCHAR szProduct[] = { 'P','r','o','d','u','c','t','I','d','\0' };
  static const WCHAR szUpdate[] = { 'I','E','A','K',
    'U','p','d','a','t','e','U','r','l','\0' };
  static const WCHAR szHelp[] = { 'I','E','A','K',
    'H','e','l','p','S','t','r','i','n','g','\0' };
  WCHAR buff[2084];
  HKEY hReg;
  DWORD dwType, dwLen;

  TRACE("(%p,%d)\n", lpszDest, dwDestLen);

  if (!lpszDest)
    return FALSE;

  *lpszDest = '\0';

  /* Try the NT key first, followed by 95/98 key */
  if (RegOpenKeyExW(HKEY_LOCAL_MACHINE, szWinNtKey, 0, KEY_READ, &hReg) &&
      RegOpenKeyExW(HKEY_LOCAL_MACHINE, szWinKey, 0, KEY_READ, &hReg))
    return FALSE;

  /* OS Version */
  buff[0] = '\0';
  dwLen = 30;
  if (!SHGetValueW(HKEY_LOCAL_MACHINE, szIEKey, szVersion, &dwType, buff, &dwLen))
  {
    DWORD dwStrLen = strlenW(buff);
    dwLen = 30 - dwStrLen;
    SHGetValueW(HKEY_LOCAL_MACHINE, szIEKey,
                szCustomized, &dwType, buff+dwStrLen, &dwLen);
  }
  StrCatBuffW(lpszDest, buff, dwDestLen);

  /* ~Registered Owner */
  buff[0] = '~';
  dwLen = 256;
  if (SHGetValueW(hReg, szOwner, 0, &dwType, buff+1, &dwLen))
    buff[1] = '\0';
  StrCatBuffW(lpszDest, buff, dwDestLen);

  /* ~Registered Organization */
  dwLen = 256;
  if (SHGetValueW(hReg, szOrg, 0, &dwType, buff+1, &dwLen))
    buff[1] = '\0';
  StrCatBuffW(lpszDest, buff, dwDestLen);

  /* FIXME: Not sure where this number comes from  */
  buff[0] = '~';
  buff[1] = '0';
  buff[2] = '\0';
  StrCatBuffW(lpszDest, buff, dwDestLen);

  /* ~Product Id */
  dwLen = 256;
  if (SHGetValueW(HKEY_LOCAL_MACHINE, szRegKey, szProduct, &dwType, buff+1, &dwLen))
    buff[1] = '\0';
  StrCatBuffW(lpszDest, buff, dwDestLen);

  /* ~IE Update Url */
  dwLen = 2048;
  if(SHGetValueW(HKEY_LOCAL_MACHINE, szWinKey, szUpdate, &dwType, buff+1, &dwLen))
    buff[1] = '\0';
  StrCatBuffW(lpszDest, buff, dwDestLen);

  /* ~IE Help String */
  dwLen = 256;
  if(SHGetValueW(hReg, szHelp, 0, &dwType, buff+1, &dwLen))
    buff[1] = '\0';
  StrCatBuffW(lpszDest, buff, dwDestLen);

  RegCloseKey(hReg);
  return TRUE;
}

/*************************************************************************
 *      @	[SHLWAPI.163]
 *
 * Call IOleCommandTarget_QueryStatus() on an object.
 *
 * PARAMS
 *  lpUnknown     [I] Object supporting the IOleCommandTarget interface
 *  pguidCmdGroup [I] GUID for the command group
 *  cCmds         [I]
 *  prgCmds       [O] Commands
 *  pCmdText      [O] Command text
 *
 * RETURNS
 *  Success: S_OK.
 *  Failure: E_FAIL, if lpUnknown is NULL.
 *           E_NOINTERFACE, if lpUnknown does not support IOleCommandTarget.
 *           Otherwise, an error code from IOleCommandTarget_QueryStatus().
 */
HRESULT WINAPI IUnknown_QueryStatus(IUnknown* lpUnknown, REFGUID pguidCmdGroup,
                           ULONG cCmds, OLECMD *prgCmds, OLECMDTEXT* pCmdText)
{
  HRESULT hRet = E_FAIL;

  TRACE("(%p,%p,%d,%p,%p)\n",lpUnknown, pguidCmdGroup, cCmds, prgCmds, pCmdText);

  if (lpUnknown)
  {
    IOleCommandTarget* lpOle;

    hRet = IUnknown_QueryInterface(lpUnknown, &IID_IOleCommandTarget,
                                   (void**)&lpOle);

    if (SUCCEEDED(hRet) && lpOle)
    {
      hRet = IOleCommandTarget_QueryStatus(lpOle, pguidCmdGroup, cCmds,
                                           prgCmds, pCmdText);
      IOleCommandTarget_Release(lpOle);
    }
  }
  return hRet;
}

/*************************************************************************
 *      @		[SHLWAPI.164]
 *
 * Call IOleCommandTarget_Exec() on an object.
 *
 * PARAMS
 *  lpUnknown     [I] Object supporting the IOleCommandTarget interface
 *  pguidCmdGroup [I] GUID for the command group
 *
 * RETURNS
 *  Success: S_OK.
 *  Failure: E_FAIL, if lpUnknown is NULL.
 *           E_NOINTERFACE, if lpUnknown does not support IOleCommandTarget.
 *           Otherwise, an error code from IOleCommandTarget_Exec().
 */
HRESULT WINAPI IUnknown_Exec(IUnknown* lpUnknown, REFGUID pguidCmdGroup,
                           DWORD nCmdID, DWORD nCmdexecopt, VARIANT* pvaIn,
                           VARIANT* pvaOut)
{
  HRESULT hRet = E_FAIL;

  TRACE("(%p,%p,%d,%d,%p,%p)\n",lpUnknown, pguidCmdGroup, nCmdID,
        nCmdexecopt, pvaIn, pvaOut);

  if (lpUnknown)
  {
    IOleCommandTarget* lpOle;

    hRet = IUnknown_QueryInterface(lpUnknown, &IID_IOleCommandTarget,
                                   (void**)&lpOle);
    if (SUCCEEDED(hRet) && lpOle)
    {
      hRet = IOleCommandTarget_Exec(lpOle, pguidCmdGroup, nCmdID,
                                    nCmdexecopt, pvaIn, pvaOut);
      IOleCommandTarget_Release(lpOle);
    }
  }
  return hRet;
}

/*************************************************************************
 *      @	[SHLWAPI.165]
 *
 * Retrieve, modify, and re-set a value from a window.
 *
 * PARAMS
 *  hWnd   [I] Window to get value from
 *  offset [I] Offset of value
 *  wMask  [I] Mask for uiFlags
 *  wFlags [I] Bits to set in window value
 *
 * RETURNS
 *  The new value as it was set, or 0 if any parameter is invalid.
 *
 * NOTES
 *  Any bits set in uiMask are cleared from the value, then any bits set in
 *  uiFlags are set in the value.
 */
LONG WINAPI SHSetWindowBits(HWND hwnd, INT offset, UINT wMask, UINT wFlags)
{
  LONG ret = GetWindowLongA(hwnd, offset);
  LONG newFlags = (wFlags & wMask) | (ret & ~wFlags);

  if (newFlags != ret)
    ret = SetWindowLongA(hwnd, offset, newFlags);
  return ret;
}

/*************************************************************************
 *      @	[SHLWAPI.167]
 *
 * Change a window's parent.
 *
 * PARAMS
 *  hWnd       [I] Window to change parent of
 *  hWndParent [I] New parent window
 *
 * RETURNS
 *  The old parent of hWnd.
 *
 * NOTES
 *  If hWndParent is NULL (desktop), the window style is changed to WS_POPUP.
 *  If hWndParent is NOT NULL then we set the WS_CHILD style.
 */
HWND WINAPI SHSetParentHwnd(HWND hWnd, HWND hWndParent)
{
  TRACE("%p, %p\n", hWnd, hWndParent);

  if(GetParent(hWnd) == hWndParent)
    return 0;

  if(hWndParent)
    SHSetWindowBits(hWnd, GWL_STYLE, WS_CHILD, WS_CHILD);
  else
    SHSetWindowBits(hWnd, GWL_STYLE, WS_POPUP, WS_POPUP);

  return SetParent(hWnd, hWndParent);
}

/*************************************************************************
 *      @       [SHLWAPI.168]
 *
 * Locate and advise a connection point in an IConnectionPointContainer object.
 *
 * PARAMS
 *  lpUnkSink   [I] Sink for the connection point advise call
 *  riid        [I] REFIID of connection point to advise
 *  bAdviseOnly [I] TRUE = Advise only, FALSE = Unadvise first
 *  lpUnknown   [I] Object supporting the IConnectionPointContainer interface
 *  lpCookie    [O] Pointer to connection point cookie
 *  lppCP       [O] Destination for the IConnectionPoint found
 *
 * RETURNS
 *  Success: S_OK. If lppCP is non-NULL, it is filled with the IConnectionPoint
 *           that was advised. The caller is responsible for releasing it.
 *  Failure: E_FAIL, if any arguments are invalid.
 *           E_NOINTERFACE, if lpUnknown isn't an IConnectionPointContainer,
 *           Or an HRESULT error code if any call fails.
 */
HRESULT WINAPI ConnectToConnectionPoint(IUnknown* lpUnkSink, REFIID riid, BOOL bAdviseOnly,
                           IUnknown* lpUnknown, LPDWORD lpCookie,
                           IConnectionPoint **lppCP)
{
  HRESULT hRet;
  IConnectionPointContainer* lpContainer;
  IConnectionPoint *lpCP;

  if(!lpUnknown || (bAdviseOnly && !lpUnkSink))
    return E_FAIL;

  if(lppCP)
    *lppCP = NULL;

  hRet = IUnknown_QueryInterface(lpUnknown, &IID_IConnectionPointContainer,
                                 (void**)&lpContainer);
  if (SUCCEEDED(hRet))
  {
    hRet = IConnectionPointContainer_FindConnectionPoint(lpContainer, riid, &lpCP);

    if (SUCCEEDED(hRet))
    {
      if(!bAdviseOnly)
        hRet = IConnectionPoint_Unadvise(lpCP, *lpCookie);
      hRet = IConnectionPoint_Advise(lpCP, lpUnkSink, lpCookie);

      if (FAILED(hRet))
        *lpCookie = 0;

      if (lppCP && SUCCEEDED(hRet))
        *lppCP = lpCP; /* Caller keeps the interface */
      else
        IConnectionPoint_Release(lpCP); /* Release it */
    }

    IUnknown_Release(lpContainer);
  }
  return hRet;
}

/*************************************************************************
 *	@	[SHLWAPI.169]
 *
 * Release an interface.
 *
 * PARAMS
 *  lpUnknown [I] Object to release
 *
 * RETURNS
 *  Nothing.
 */
DWORD WINAPI IUnknown_AtomicRelease(IUnknown ** lpUnknown)
{
    IUnknown *temp;

    TRACE("(%p)\n",lpUnknown);

    if(!lpUnknown || !*((LPDWORD)lpUnknown)) return 0;
    temp = *lpUnknown;
    *lpUnknown = NULL;

    TRACE("doing Release\n");

    return IUnknown_Release(temp);
}

/*************************************************************************
 *      @	[SHLWAPI.170]
 *
 * Skip '//' if present in a string.
 *
 * PARAMS
 *  lpszSrc [I] String to check for '//'
 *
 * RETURNS
 *  Success: The next character after the '//' or the string if not present
 *  Failure: NULL, if lpszStr is NULL.
 */
LPCSTR WINAPI PathSkipLeadingSlashesA(LPCSTR lpszSrc)
{
  if (lpszSrc && lpszSrc[0] == '/' && lpszSrc[1] == '/')
    lpszSrc += 2;
  return lpszSrc;
}

/*************************************************************************
 *      @		[SHLWAPI.171]
 *
 * Check if two interfaces come from the same object.
 *
 * PARAMS
 *   lpInt1 [I] Interface to check against lpInt2.
 *   lpInt2 [I] Interface to check against lpInt1.
 *
 * RETURNS
 *   TRUE, If the interfaces come from the same object.
 *   FALSE Otherwise.
 */
BOOL WINAPI SHIsSameObject(IUnknown* lpInt1, IUnknown* lpInt2)
{
  LPVOID lpUnknown1, lpUnknown2;

  TRACE("%p %p\n", lpInt1, lpInt2);

  if (!lpInt1 || !lpInt2)
    return FALSE;

  if (lpInt1 == lpInt2)
    return TRUE;

  if (!SUCCEEDED(IUnknown_QueryInterface(lpInt1, &IID_IUnknown,
                                       (LPVOID *)&lpUnknown1)))
    return FALSE;

  if (!SUCCEEDED(IUnknown_QueryInterface(lpInt2, &IID_IUnknown,
                                       (LPVOID *)&lpUnknown2)))
    return FALSE;

  if (lpUnknown1 == lpUnknown2)
    return TRUE;

  return FALSE;
}

/*************************************************************************
 *      @	[SHLWAPI.172]
 *
 * Get the window handle of an object.
 *
 * PARAMS
 *  lpUnknown [I] Object to get the window handle of
 *  lphWnd    [O] Destination for window handle
 *
 * RETURNS
 *  Success: S_OK. lphWnd contains the objects window handle.
 *  Failure: An HRESULT error code.
 *
 * NOTES
 *  lpUnknown is expected to support one of the following interfaces:
 *  IOleWindow(), IInternetSecurityMgrSite(), or IShellView().
 */
HRESULT WINAPI IUnknown_GetWindow(IUnknown *lpUnknown, HWND *lphWnd)
{
  /* FIXME: Wine has no header for this object */
  static const GUID IID_IInternetSecurityMgrSite = { 0x79eac9ed,
    0xbaf9, 0x11ce, { 0x8c, 0x82, 0x00, 0xaa, 0x00, 0x4b, 0xa9, 0x0b }};
  IUnknown *lpOle;
  HRESULT hRet = E_FAIL;

  TRACE("(%p,%p)\n", lpUnknown, lphWnd);

  if (!lpUnknown)
    return hRet;

  hRet = IUnknown_QueryInterface(lpUnknown, &IID_IOleWindow, (void**)&lpOle);

  if (FAILED(hRet))
  {
    hRet = IUnknown_QueryInterface(lpUnknown,&IID_IShellView, (void**)&lpOle);

    if (FAILED(hRet))
    {