typedef void* LPSECURITY_ATTRIBUTES;
typedef const char* LPCSTR;

WINAPI HANDLE CreateFileA(
    LPCSTR lpFileName,
    DWORD dwDesiredAccess,
    DWORD dwShareMode,
    LPSECURITY_ATTRIBUTES lpSecurityAttributes,
    DWORD dwCreationDisposition,
    DWORD dwFlagsAndAttributes,
    HANDLE hTemplateFile
    );

WINAPI BOOL CloseHandle(HANDLE hObject);

WINAPI HANDLE CreateFileMappingA(
    HANDLE hFile,
    LPSECURITY_ATTRIBUTES lpFileMappingAttributes,
    DWORD flProtect,
    DWORD dwMaximumSizeHigh,
    DWORD dwMaximumSizeLow,
    LPCSTR lpName
    );

WINAPI LPVOID  MapViewOfFileEx(
    HANDLE hFileMappingObject,
    DWORD dwDesiredAccess,
    DWORD dwFileOffsetHigh,
    DWORD dwFileOffsetLow,
    DWORD dwNumberOfBytesToMap,
    LPVOID lpBaseAddress
    );

WINAPI BOOL UnmapViewOfFile(LPCVOID lpBaseAddress);


WINAPI DWORD GetFileSize(HANDLE hFile, LPDWORD lpFileSizeHigh);

#define CREATE_NEW          1
#define CREATE_ALWAYS       2
#define OPEN_EXISTING       3
#define OPEN_ALWAYS         4
#define TRUNCATE_EXISTING   5

#define FILE_MAP_COPY       SECTION_QUERY
#define FILE_MAP_WRITE      SECTION_MAP_WRITE
#define FILE_MAP_READ       SECTION_MAP_READ
#define FILE_MAP_ALL_ACCESS SECTION_ALL_ACCESS

#define SECTION_QUERY       0x0001
#define SECTION_MAP_WRITE   0x0002
#define SECTION_MAP_READ    0x0004
#define SECTION_MAP_EXECUTE 0x0008
#define SECTION_EXTEND_SIZE 0x0010

#define SECTION_ALL_ACCESS (STANDARD_RIGHTS_REQUIRED|SECTION_QUERY|\
                            SECTION_MAP_WRITE |      \
                            SECTION_MAP_READ |       \
                            SECTION_MAP_EXECUTE |    \
                            SECTION_EXTEND_SIZE)
#define PAGE_NOACCESS          0x01     
#define PAGE_READONLY          0x02     
#define PAGE_READWRITE         0x04     
#define PAGE_WRITECOPY         0x08     
#define PAGE_EXECUTE           0x10     
#define PAGE_EXECUTE_READ      0x20     
#define PAGE_EXECUTE_READWRITE 0x40     
#define PAGE_EXECUTE_WRITECOPY 0x80     

#define GENERIC_READ                     (0x80000000L)
#define GENERIC_WRITE                    (0x40000000L)
#define GENERIC_EXECUTE                  (0x20000000L)
#define GENERIC_ALL                      (0x10000000L)

#define FILE_SHARE_READ                 0x00000001  
#define FILE_SHARE_WRITE                0x00000002  
#define FILE_SHARE_DELETE               0x00000004  
#define FILE_ATTRIBUTE_READONLY             0x00000001  
#define FILE_ATTRIBUTE_HIDDEN               0x00000002  
#define FILE_ATTRIBUTE_SYSTEM               0x00000004  
#define FILE_ATTRIBUTE_DIRECTORY            0x00000010  
#define FILE_ATTRIBUTE_ARCHIVE              0x00000020  
#define FILE_ATTRIBUTE_ENCRYPTED            0x00000040  
#define FILE_ATTRIBUTE_NORMAL               0x00000080  
#define FILE_ATTRIBUTE_TEMPORARY            0x00000100  
#define FILE_ATTRIBUTE_SPARSE_FILE          0x00000200  
#define FILE_ATTRIBUTE_REPARSE_POINT        0x00000400  
#define FILE_ATTRIBUTE_COMPRESSED           0x00000800  

#define INVALID_HANDLE_VALUE ((HANDLE)-1)
#define FILE_BEGIN           0
#define FILE_CURRENT         1
#define FILE_END             2