reactos/subsystems/win32/win32k/ntuser/useratom.c

/*
 *  ReactOS W32 Subsystem
 *  Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 ReactOS Team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
/*
 * COPYRIGHT:        See COPYING in the top level directory
 * PROJECT:          ReactOS kernel
 * PURPOSE:          User Atom helper routines
 * FILE:             subsys/win32k/ntuser/useratom.c
 * PROGRAMER:        Filip Navara <xnavara@volny.cz>
 */

#include <w32k.h>

#define NDEBUG
#include <debug.h>

RTL_ATOM FASTCALL
IntAddAtom(LPWSTR AtomName)
{
   NTSTATUS Status = STATUS_SUCCESS;
   PTHREADINFO pti;
   RTL_ATOM Atom;

   pti = PsGetCurrentThreadWin32Thread();
   if (pti->rpdesk == NULL)
   {
      SetLastNtError(Status);
      return (RTL_ATOM)0;
   }

   Status = RtlAddAtomToAtomTable(gAtomTable, AtomName, &Atom);

   if (!NT_SUCCESS(Status))
   {
      SetLastNtError(Status);
      return (RTL_ATOM)0;
   }
   return Atom;
}

ULONG FASTCALL
IntGetAtomName(RTL_ATOM nAtom, LPWSTR lpBuffer, ULONG nSize)
{
   NTSTATUS Status = STATUS_SUCCESS;
   PTHREADINFO pti;
   ULONG Size = nSize;

   pti = PsGetCurrentThreadWin32Thread();
   if (pti->rpdesk == NULL)
   {
      SetLastNtError(Status);
      return 0;
   }

   Status = RtlQueryAtomInAtomTable(gAtomTable, nAtom, NULL, NULL, lpBuffer, &Size);

   if (Size < nSize)
      *(lpBuffer + Size) = 0;
   if (!NT_SUCCESS(Status))
   {
      SetLastNtError(Status);
      return 0;
   }
   return Size;
}

RTL_ATOM FASTCALL
IntAddGlobalAtom(LPWSTR lpBuffer, BOOL PinAtom)
{
   RTL_ATOM Atom;
   NTSTATUS Status = STATUS_SUCCESS;

   Status = RtlAddAtomToAtomTable(gAtomTable, lpBuffer, &Atom);

   if (!NT_SUCCESS(Status))
   {
      DPRINT1("Error init Global Atom.\n");
      return 0;
   }

   if ( Atom && PinAtom ) RtlPinAtomInAtomTable(gAtomTable, Atom);

   return Atom;
}

/* EOF */