subsystems/win32/win32k/ntuser/useratom.c

   1 /*
   2  *  ReactOS W32 Subsystem
   3  *  Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 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 along
  16  *  with this program; if not, write to the Free Software Foundation, Inc.,
  17  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  */
  19 /*
  20  * COPYRIGHT:        See COPYING in the top level directory
  21  * PROJECT:          ReactOS kernel
  22  * PURPOSE:          User Atom helper routines
  23  * FILE:             subsys/win32k/ntuser/useratom.c
  24  * PROGRAMER:        Filip Navara <xnavara@volny.cz>
  25  */
  26
  27 #include <win32k.h>
  28
  29 DBG_DEFAULT_CHANNEL(UserMisc);
  30
  31 RTL_ATOM FASTCALL
  32 IntAddAtom(LPWSTR AtomName)
  33 {
  34    NTSTATUS Status = STATUS_SUCCESS;
  35    PTHREADINFO pti;
  36    RTL_ATOM Atom;
  37
  38    pti = PsGetCurrentThreadWin32Thread();
  39    if (pti->rpdesk == NULL)
  40    {
  41       SetLastNtError(Status);
  42       return (RTL_ATOM)0;
  43    }
  44
  45    Status = RtlAddAtomToAtomTable(gAtomTable, AtomName, &Atom);
  46
  47    if (!NT_SUCCESS(Status))
  48    {
  49       SetLastNtError(Status);
  50       return (RTL_ATOM)0;
  51    }
  52    return Atom;
  53 }
  54
  55 ULONG FASTCALL
  56 IntGetAtomName(RTL_ATOM nAtom, LPWSTR lpBuffer, ULONG nSize)
  57 {
  58    NTSTATUS Status = STATUS_SUCCESS;
  59    PTHREADINFO pti;
  60    ULONG Size = nSize;
  61
  62    pti = PsGetCurrentThreadWin32Thread();
  63    if (pti->rpdesk == NULL)
  64    {
  65       SetLastNtError(Status);
  66       return 0;
  67    }
  68
  69    Status = RtlQueryAtomInAtomTable(gAtomTable, nAtom, NULL, NULL, lpBuffer, &Size);
  70
  71    if (Size < nSize)
  72       *(lpBuffer + Size) = 0;
  73    if (!NT_SUCCESS(Status))
  74    {
  75       SetLastNtError(Status);
  76       return 0;
  77    }
  78    return Size;
  79 }
  80
  81 RTL_ATOM FASTCALL
  82 IntAddGlobalAtom(LPWSTR lpBuffer, BOOL PinAtom)
  83 {
  84    RTL_ATOM Atom;
  85    NTSTATUS Status = STATUS_SUCCESS;
  86
  87    Status = RtlAddAtomToAtomTable(gAtomTable, lpBuffer, &Atom);
  88
  89    if (!NT_SUCCESS(Status))
  90    {
  91       ERR("Error init Global Atom.\n");
  92       return 0;
  93    }
  94
  95    if ( Atom && PinAtom ) RtlPinAtomInAtomTable(gAtomTable, Atom);
  96
  97    return Atom;
  98 }
  99
 100 /* EOF */