ImageMagick in VB.NET

/*
  Copyright 1999-2006 ImageMagick Studio LLC, a non-profit organization
  dedicated to making software imaging solutions freely available.

  You may not use this file except in compliance with the License.
  obtain a copy of the License at

    http://www.imagemagick.org/script/license.php

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.

  MagickCore Windows NT utility methods.
*/
#ifndef _MAGICKCORE_NT_BASE_H
#define _MAGICKCORE_NT_BASE_H

#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif

#include "magick/delegate.h"

#define WIN32_LEAN_AND_MEAN
#define VC_EXTRALEAN
#define _CRT_SECURE_NO_DEPRECATE
#include <windows.h>
#include <wchar.h>
#include <winuser.h>
#include <wingdi.h>
#include <io.h>
#include <process.h>
#include <errno.h>
#if defined(_DEBUG)
#include <crtdbg.h>
#endif

#define PROT_READ  0x01
#define PROT_WRITE  0x02
#define MAP_SHARED  0x01
#define MAP_PRIVATE  0x02
#define MAP_ANONYMOUS  0x20
#define F_OK 0
#define R_OK 4
#define W_OK 2
#define RW_OK 6
#define _SC_PAGESIZE 1
#define _SC_PHYS_PAGES 2
#define _SC_OPEN_MAX 3
#if !defined(SSIZE_MAX)
#define SSIZE_MAX  0x7fffffffL
#endif

#if !defined(chsize)
# if defined(__BORLANDC__)
#   define chsize(file,length)  chsize(file,length)
# else
#   define chsize(file,length)  _chsize(file,length)
# endif
#endif

#if !defined(access)
#  define access(path,mode)  _access(path,mode)
#endif
#if !defined(chdir)
#  define chdir  _chdir
#endif
#if !defined(close)
#  define close  _close
#endif
#if !defined(closedir)
#  define closedir(directory)  NTCloseDirectory(directory)
#endif
#if !defined(fdopen)
#  define fdopen  _fdopen
#endif
#if !defined(fileno)
#  define fileno  _fileno
#endif
#if !defined(ftruncate)
#  define ftruncate(file,length)  NTTruncateFile(file,length)
#endif
#if !defined(getcwd)
#  define getcwd  _getcwd
#endif
#if !defined(getpid)
#  define getpid  _getpid
#endif
#if !defined(hypot)
#  define hypot  _hypot
#endif
#if !defined(isatty)
#  define isatty _isatty
#endif
#if !defined(lt_dlclose)
#  define lt_dlclose(handle)  NTCloseLibrary(handle)
#endif
#if !defined(lt_dlerror)
#  define lt_dlerror()  NTGetLibraryError()
#endif
#if !defined(lt_dlexit)
#  define lt_dlexit()  NTExitLibrary()
#endif
#if !defined(lt_dlinit)
#  define lt_dlinit()  NTInitializeLibrary()
#endif
#if !defined(lt_dlopen)
#  define lt_dlopen(filename)  NTOpenLibrary(filename)
#endif
#if !defined(lt_dlsetsearchpath)
#  define lt_dlsetsearchpath(path)  NTSetSearchPath(path)
#endif
#if !defined(lt_dlsym)
#  define lt_dlsym(handle,name)  NTGetLibrarySymbol(handle,name)
#endif
#if !defined(mmap)
#  define mmap(address,length,protection,access,file,offset) \
  NTMapMemory(address,length,protection,access,file,offset)
#endif
#if !defined(msync)
#  define msync(address,length,flags)  NTSyncMemory(address,length,flags)
#endif
#if !defined(munmap)
#  define munmap(address,length)  NTUnmapMemory(address,length)
#endif
#if !defined(opendir)
#  define opendir(directory)  NTOpenDirectory(directory)
#endif
#if !defined(open)
#  define open  _open
#endif
#if !defined(pclose)
#  define pclose  _pclose
#endif
#if !defined(popen)
#  define popen  _popen
#endif
#if !defined(read)
#  define read  _read
#endif
#if !defined(readdir)
#  define readdir(directory)  NTReadDirectory(directory)
#endif
#if !defined(seekdir)
#  define seekdir(directory,offset)  NTSeekDirectory(directory,offset)
#endif
#if !defined(setmode)
#  define setmode  _setmode
#endif
#if !defined(strcasecmp)
#  define strcasecmp  _strcmpi
#endif
#if !defined(strncasecmp)
#  define strncasecmp  _strnicmp
#endif
#if !defined(sysconf)
#  define sysconf(name)  NTSystemConfiguration(name)
#endif
#if !defined(telldir)
#  define telldir(directory)  NTTellDirectory(directory)
#endif
#if !defined(tempnam)
#  define tempnam  _tempnam
#endif
#if !defined(vsnprintf)
#  define vsnprintf  _vsnprintf
#endif
#if !defined(write)
#  define write  _write
#endif

#if defined(_MT) && defined(__WINDOWS__)
#  define SAFE_GLOBAL  __declspec(thread)
#else
#  define SAFE_GLOBAL
#endif

#if defined(__BORLANDC__)
#undef _O_RANDOM
#define _O_RANDOM 0
#undef _O_SEQUENTIAL
#define _O_SEQUENTIAL 0
#undef _O_SHORT_LIVED
#define _O_SHORT_LIVED 0
#undef _O_TEMPORARY
#define _O_TEMPORARY 0
#endif

#if !defined(XS_VERSION)
struct dirent
{
  char
    d_name[2048];

  int
    d_namlen;
};

typedef struct _DIR
{
  HANDLE
    hSearch;

  WIN32_FIND_DATA
    Win32FindData;

  BOOL
    firsttime;

  struct dirent
    file_info;
} DIR;

typedef struct _NTMEMORYSTATUSEX
{
  DWORD
    dwLength,
    dwMemoryLoad;

  DWORDLONG
    ullTotalPhys,
    ullAvailPhys,
    ullTotalPageFile,
    ullAvailPageFile,
    ullTotalVirtual,
    ullAvailVirtual,
    ullAvailExtendedVirtual;
} NTMEMORYSTATUSEX;

typedef UINT
  (CALLBACK *LPFNDLLFUNC1)(DWORD,UINT);

typedef UINT
  (CALLBACK *LPFNDLLFUNC2)(NTMEMORYSTATUSEX *);

#endif

#if !defined(ssize_t) && !defined(__MINGW32__)
typedef long ssize_t;
#endif

extern MagickExport char
  *NTGetLastError(void);

extern MagickExport const GhostscriptVectors
  *NTGhostscriptDLLVectors(void);

#if !defined(HasLTDL)
extern MagickExport const char
  *NTGetLibraryError(void);
#endif

#if !defined(XS_VERSION)
extern MagickExport char
  *NTRegistryKeyLookup(const char *);

extern MagickExport DIR
  *NTOpenDirectory(const char *);

extern MagickExport double
  NTElapsedTime(void),
  NTUserTime(void);

extern MagickExport int
  Exit(int),
  IsWindows95(),
  NTCloseDirectory(DIR *),
  NTCloseLibrary(void *),
  NTControlHandler(void),
  NTExitLibrary(void),
  NTTruncateFile(int,const MagickSizeType),
  NTGhostscriptDLL(char *,int),
  NTGhostscriptEXE(char *,int),
  NTGhostscriptFonts(char *,int),
  NTGhostscriptLoadDLL(void),
  NTGhostscriptUnLoadDLL(void),
  NTInitializeLibrary(void),
  NTSetSearchPath(const char *),
  NTSyncMemory(void *,size_t,int),
  NTUnmapMemory(void *,size_t),
  NTSystemCommand(const char *);

extern MagickExport long
  NTSystemConfiguration(int),
  NTTellDirectory(DIR *);

extern MagickExport MagickBooleanType
  NTGetExecutionPath(char *),
  NTGetModulePath(const char *,char *),
  NTReportEvent(const char *,const MagickBooleanType),
  NTReportException(const char *,const MagickBooleanType);

extern MagickExport struct dirent
  *NTReadDirectory(DIR *);

extern MagickExport unsigned char
  *NTResourceToBlob(const char *);

extern MagickExport void
  NTErrorHandler(const ExceptionType,const char *,const char *),
  *NTGetLibrarySymbol(void *,const char *),
  *NTMapMemory(char *,size_t,int,int,int,MagickOffsetType),
  *NTOpenLibrary(const char *),
  NTSeekDirectory(DIR *,long),
  NTWarningHandler(const ExceptionType,const char *,const char *);

#endif /* !XS_VERSION */

#if defined(__cplusplus) || defined(c_plusplus)
}
#endif /* !C++ */

#endif /* !_MAGICKCORE_NT_BASE_H */