This function entry is part of a MAPI-specific list of Win32 functions. For a complete description, see Win32 Functions.
DWORD SetFilePointer(
HANDLE hFile,
LONG lDistanceToMove,
PLONG lpDistanceToMoveHigh,
DWORD dwMoveMethod
)
Distance is limited to 2 gigabytes (signed 32-bits). The SetFilePointer function fails if the lpDistanceToMoveHigh parameter is present and nonzero, unless the value it holds is the sign extension of a negative distance.