KSMETHOD_SET_IRP_STORAGE macro (ks.h)

Article
02/22/2024

This macro returns a pointer to the KSMETHOD_SET in which the method is located.

Syntax

void KSMETHOD_SET_IRP_STORAGE(
  [in]  Irp
);

Parameters

[in] Irp

Specifies the IRP passed to the handler routine.

Return value

None

Remarks

The pointer to a KSMETHOD_SET structure is extracted from Irp->Tail.Overlay.DriverContext. Parameters in DriverContext are initialized by KsMethodHandler and KsMethodHandlerWithAllocator.

The macro is defined as follows:

#define KSMETHOD_SET_IRP_STORAGE(Irp)   (*(const KSMETHOD_SET**)&(Irp)->Tail.Overlay.DriverContext[0])

Requirements

Requirement	Value
Target Platform	Desktop
Header	ks.h (include Ks.h)