int __PHYSFS_platformSeek(void *opaque, PHYSFS_uint64 pos)
{
HANDLE Handle = ((WinApiFile *) opaque)->handle;
LONG HighOrderPos;
PLONG pHighOrderPos;
DWORD rc;
/* Get the high order 32-bits of the position */
HighOrderPos = HIGHORDER_UINT64(pos);
/*
* MSDN: "If you do not need the high-order 32 bits, this
* pointer must be set to NULL."
*/
pHighOrderPos = (HighOrderPos) ? &HighOrderPos : NULL;
/* Move pointer "pos" count from start of file */
rc = SetFilePointer(Handle, LOWORDER_UINT64(pos),
pHighOrderPos, FILE_BEGIN);
if ( (rc == PHYSFS_INVALID_SET_FILE_POINTER) &&
(GetLastError() != NO_ERROR) )
{
BAIL_MACRO(errcodeFromWinApi(), 0);
} /* if */
return 1; /* No error occured */
} /* __PHYSFS_platformSeek */
int __PHYSFS_platformSeek(void *opaque, PHYSFS_uint64 pos)
{
HANDLE Handle = ((WinApiFile *)opaque)->handle;
BOOL rc;
LARGE_INTEGER li;
li.LowPart = LOWORDER_UINT64(pos);
li.HighPart = HIGHORDER_UINT64(pos);
rc = SetFilePointerEx(Handle, li, NULL, FILE_BEGIN);
if (!rc && (GetLastError() != NO_ERROR))
{
BAIL_MACRO(errcodeFromWinApi(), 0);
} /* if */
return 1; /* No error occured */
} /* __PHYSFS_platformSeek */
int __PHYSFS_platformSeek(void *opaque, PHYSFS_uint64 pos)
{
HANDLE FileHandle = ((win32file *) opaque)->handle;
DWORD HighOrderPos;
DWORD *pHighOrderPos;
DWORD rc;
/* Get the high order 32-bits of the position */
HighOrderPos = HIGHORDER_UINT64(pos);
/*
* MSDN: "If you do not need the high-order 32 bits, this
* pointer must be set to NULL."
*/
pHighOrderPos = (HighOrderPos) ? &HighOrderPos : NULL;
/*
* !!! FIXME: MSDN: "Windows Me/98/95: If the pointer
* !!! FIXME: lpDistanceToMoveHigh is not NULL, then it must
* !!! FIXME: point to either 0, INVALID_SET_FILE_POINTER, or
* !!! FIXME: the sign extension of the value of lDistanceToMove.
* !!! FIXME: Any other value will be rejected."
*/
/* Move pointer "pos" count from start of file */
rc = SetFilePointer(FileHandle, LOWORDER_UINT64(pos),
pHighOrderPos, FILE_BEGIN);
if ( (rc == PHYSFS_INVALID_SET_FILE_POINTER) &&
(GetLastError() != NO_ERROR) )
{
BAIL_MACRO(win32strerror(), 0);
} /* if */
return(1); /* No error occured */
} /* __PHYSFS_platformSeek */