reactos/dll/win32/user32/misc/object.c

   1 /*
   2  *  ReactOS kernel
   3  *  Copyright (C) 1998, 1999, 2000, 2001 ReactOS Team
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19 /* $Id$
  20  *
  21  * PROJECT:         ReactOS user32.dll
  22  * FILE:            lib/user32/misc/dde.c
  23  * PURPOSE:         DDE
  24  * PROGRAMMER:      Casper S. Hornstrup (chorns@users.sourceforge.net)
  25  * UPDATE HISTORY:
  26  *      09-05-2001  CSH  Created
  27  */
  28
  29 /* INCLUDES ******************************************************************/
  30
  31 #include <user32.h>
  32
  33 #include <wine/debug.h>
  34 WINE_DEFAULT_DEBUG_CHANNEL(user32);
  35
  36 /* FUNCTIONS *****************************************************************/
  37
  38 /*
  39  * @implemented
  40  */
  41 BOOL
  42 WINAPI
  43 GetUserObjectInformationA(
  44   HANDLE hObj,
  45   int nIndex,
  46   PVOID pvInfo,
  47   DWORD nLength,
  48   LPDWORD lpnLengthNeeded)
  49 {
  50   LPWSTR buffer;
  51   BOOL ret = TRUE;
  52
  53   TRACE("GetUserObjectInformationA(%x %d %x %d %x)\n", hObj, nIndex,
  54          pvInfo, nLength, lpnLengthNeeded);
  55
  56   if (nIndex != UOI_NAME && nIndex != UOI_TYPE)
  57     return NtUserGetObjectInformation(hObj, nIndex, pvInfo, nLength, lpnLengthNeeded);
  58
  59   /* allocate unicode buffer */
  60   buffer = HeapAlloc(GetProcessHeap(), 0, nLength*2);
  61   if (buffer == NULL)
  62   {
  63     SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  64     return FALSE;
  65   }
  66
  67   /* get unicode string */
  68   if (!NtUserGetObjectInformation(hObj, nIndex, buffer, nLength*2, lpnLengthNeeded))
  69     ret = FALSE;
  70   *lpnLengthNeeded /= 2;
  71
  72   if (ret)
  73   {
  74     /* convert string */
  75     if (WideCharToMultiByte(CP_THREAD_ACP, 0, buffer, -1,
  76                             pvInfo, nLength, NULL, NULL) == 0)
  77     {
  78       ret = FALSE;
  79     }
  80   }
  81
  82   /* free resources */
  83   HeapFree(GetProcessHeap(), 0, buffer);
  84   return ret;
  85 }