IoGetStackLimits function (wdm.h)

The IoGetStackLimits routine returns the boundaries of the current thread's stack frame.

Syntax

void IoGetStackLimits(
  [out] PULONG_PTR LowLimit,
  [out] PULONG_PTR HighLimit
);

Parameters

[out] LowLimit

Pointer to a caller-supplied variable in which this routine returns the lower offset of the current thread's stack frame.

[out] HighLimit

Pointer to a caller-supplied variable in which this routine returns the higher offset of the current thread's stack frame.

Return value

None

Remarks

Highest-level drivers can call this routine, particularly file systems that have been passed a pointer to a location on the current thread's stack.

In Windows Server 2003 Service Pack 1 (SP1) and later versions of Windows, callers of IoGetStackLimits can be running at any IRQL. For earlier operating systems, the caller must be running at IRQL <= APC_LEVEL.

Requirements

See also

IoGetInitialStack

IoGetRemainingStackSize