reactos/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 <w32k.h>
  28
  29 #define NDEBUG
  30 #include <debug.h>
  31
  32 RTL_ATOM FASTCALL
  33 IntAddAtom(LPWSTR AtomName)
  34 {
  35    NTSTATUS Status = STATUS_SUCCESS;
  36    PTHREADINFO pti;
  37    RTL_ATOM Atom;
  38
  39    pti = PsGetCurrentThreadWin32Thread();
  40    if (pti->Desktop == NULL)
  41    {
  42       SetLastNtError(Status);
  43       return (RTL_ATOM)0;
  44    }
  45
  46    Status = RtlAddAtomToAtomTable(gAtomTable, AtomName, &Atom);
  47
  48    if (!NT_SUCCESS(Status))
  49    {
  50       SetLastNtError(Status);
  51       return (RTL_ATOM)0;
  52    }
  53    return Atom;
  54 }
  55
  56 ULONG FASTCALL
  57 IntGetAtomName(RTL_ATOM nAtom, LPWSTR lpBuffer, ULONG nSize)
  58 {
  59    NTSTATUS Status = STATUS_SUCCESS;
  60    PTHREADINFO pti;
  61    ULONG Size = nSize;
  62
  63    pti = PsGetCurrentThreadWin32Thread();
  64    if (pti->Desktop == NULL)
  65    {
  66       SetLastNtError(Status);
  67       return 0;
  68    }
  69
  70    Status = RtlQueryAtomInAtomTable(gAtomTable, nAtom, NULL, NULL, lpBuffer, &Size);
  71
  72    if (Size < nSize)
  73       *(lpBuffer + Size) = 0;
  74    if (!NT_SUCCESS(Status))
  75    {
  76       SetLastNtError(Status);
  77       return 0;
  78    }
  79    return Size;
  80 }
  81
  82 RTL_ATOM FASTCALL
  83 IntAddGlobalAtom(LPWSTR lpBuffer, BOOL PinAtom)
  84 {
  85    RTL_ATOM Atom;
  86    NTSTATUS Status = STATUS_SUCCESS;
  87
  88    Status = RtlAddAtomToAtomTable(gAtomTable, lpBuffer, &Atom);
  89
  90    if (!NT_SUCCESS(Status))
  91    {
  92       DPRINT1("Error init Global Atom.\n");
  93       return 0;
  94    }
  95
  96    if ( Atom && PinAtom ) RtlPinAtomInAtomTable(gAtomTable, Atom);
  97
  98    return Atom;
  99 }
 100
 101 /* EOF */