os2/include/ros2.h

   1 /* $     $
   2 */
   3 /*
   4  *
   5  * COPYRIGHT:        See COPYING in the top level directory
   6  * PROJECT:          ReactOS OS/2 sub system
   7  * FILE:             dll/doscalls.c
   8  * PURPOSE:          supportheader for Kernelservices.
   9  *                                              Use this file if your dll or application
  10  *                                              is going to use both, the os2 base services
  11  *                                              as well as the native API of NTDLL.DLL
  12  * PROGRAMMER:       Robert K. nonvolatil@yahoo.de
  13  * REVISION HISTORY:
  14  *    1-08-2002  Created
  15  */
  16
  17 /*   How to use:
  18         History got us another time. If you want to write a module
  19         that uses either native-api or os2-services...no problem.
  20         But if you want to use both of them you run into type conflicts.
  21         BOOL is not very surprising. But there are many other types
  22         whose names are equal. This results from the fact that NT
  23         should originally become OS/2 3.0.
  24         So your solution lies in including this file instead of os2.h
  25         and ntddk.h. What this file here does is, it puts the os2-types+
  26         functions into the namespace OS2 while the nt-types+functions are
  27         put into the namespace NT. The still conflicting #defines are handled
  28         like this:  If ntddk.h defintes a symbol FOO and os2.h does the same,
  29         this file here undefines the ntddk.h-one and renames it to NT_FOO.
  30         This is only done for conflicting symbols. Of course, this ist a
  31         source for errors. But is there a better solution than renaming
  32         all of the symbols?
  33 */
  34
  35 namespace NT
  36 {
  37 #include <ddk/ntddk.h>
  38 }
  39
  40
  41 /* rename all the symbols */
  42 #define NT_FILE_CREATE          FILE_CREATE
  43 #undef  FILE_CREATE
  44 #define NT_CREATE_SUSPENDED             CREATE_SUSPENDED
  45 #undef  CREATE_SUSPENDED
  46
  47 namespace OS2
  48 {
  49 #include "os2.h"
  50 }
  51
  52 using namespace OS2;