🚀 go-pugleaf

There are a couple of ways to do that.

These are just written to illustrate what I mean.  I have not run them 
through the compiler so beware of typos.

Use the LARGE_INTEGER type that the Windows header files supply.

  -----------------
__int64 FileSeek(HANDLE file_hand, __int64 new_pos)
  {
  LARGE_INTEGER li;

  li.QuadPart = new_pos;

  li.LowPart = SetFilePointer(file_hand, li.LowPart, &li.HighPart, 
FILE_BEGIN);
  return li.QuadPart;
  }
  -----------------

Use casts

__int64 FileSeek(HANDLE file_hand, __int64 new_pos)
  {
  long high_part = (long) (new_pos >> 32);
  DWORD low_part = (DWORD) new_pos;

  low_part = SetFilePointer(file_hand, low_part, &high_part, 
FILE_BEGIN);
  return (((__int64) high_part) << 32) | low_part;
  }
  -----------------

.  Ed

> Chris wrote in message
> news:420e55a3$1@newsgroups.borland.com...
>
> Can someone show me how to convert an __int64 into high and low 
> order words for use in SetFilePointer that uses the high order word 
> to support large files.