ACX_METHOD_ITEM structure (acxrequest.h)
The ACX_METHOD_ITEM structure describes a method item that is the target of an ACX request.
Syntax
typedef struct _ACX_METHOD_ITEM {
const GUID *Set;
ULONG Id;
ULONG Flags;
PFN_ACX_OBJECT_PROCESS_REQUEST EvtAcxObjectProcessRequest;
PVOID Reserved;
ULONG ArgsCb;
ULONG ResultCb;
ULONG ResultType;
} ACX_METHOD_ITEM, *PACX_METHOD_ITEM;
Members
Set
Specifies a GUID that identifies a KS (kernel streaming) method item set.
Id
Specifies the member of the member set.
Flags
The Flags field can be used to set the following Flags defined in the AcxRequest header.
#define ACX_METHOD_ITEM_FLAG_NONE 0x00000000
#define ACX_METHOD_ITEM_FLAG_SEND 0x00000001 // KSMETHOD_TYPE_SEND
#define ACX_METHOD_ITEM_FLAG_BASICSUPPORT 0x00000200 // KSMETHOD_TYPE_BASICSUPPORT
EvtAcxObjectProcessRequest
The EVT_ACX_OBJECT_PROCESS_REQUEST callback method handler associated with this item.
Reserved
This field is reserved.
ArgsCb
The minimum count in bytes (size) of the Args buffer. Set to zero if no minimum value.
ResultCb
The minimum count in bytes (size) of the Result buffer. Set to zero if no minimum value.
ResultType
The minimum count in bytes (size) of the Result buffer. Set to zero if there is no minimum value.
Remarks
Example
Example usage is shown below.
static ACX_METHOD_ITEM CircuitMethods[] =
{
{
&KSMETHODSETID_AcxTestMethod,
KSMETHOD_ACXCIRCUIT_TEST_IN2OUT,
ACX_METHOD_ITEM_FLAG_SEND,
Codec_EvtTestIn2OutMethodCallback,
NULL, // Reserved
sizeof(ULONG), // ArgsCb
sizeof(ULONG), // ResultCb
},
};
ACX requirements
Minimum ACX version: 1.0
For more information about ACX versions, see ACX version overview.
Requirements
| Requirement | Value |
|---|---|
| Header | acxrequest.h |