FsRtlGetBypassIoOpenCount macro (ntifs.h)

  • Article

FsRtlGetBypassIoOpenCount returns a count of how many BypassIO opens there are for a given stream.

Syntax

void FsRtlGetBypassIoOpenCount(
   _fo
);

Parameters

_fo

The file object on which the query is being made.

Return value

None

Remarks

When FSRTL_ADVANCED_FCB_HEADER.Version is >= FSRTL_FCB_HEADER_V4, FsRtlGetBypassIoOpenCountPtr returns the current value of that structure's BypassIoOpenCount field. This routine returns zero for earlier version numbers, which do not have a BypassIoOpenCount field.

See BypassIO for filter drivers for more information.

Requirements

Requirement Value
Minimum supported client Windows 11
Header ntifs.h

See also

FSCTL_MANAGE_BYPASS_IO