ACX_OBJECTBAG_CONFIG structure (acxmisc.h)

Artikel
04/16/2024

The ACX_OBJECTBAG_CONFIG structure defines the configuration for an AcxObjectBag.

Syntax

typedef struct _ACX_OBJECTBAG_CONFIG {
  ULONG            Size;
  ULONG            Flags;
  WDFKEY           ParentKey;
  PCUNICODE_STRING Name;
  HANDLE           Handle;
} ACX_OBJECTBAG_CONFIG, *PACX_OBJECTBAG_CONFIG;

Members

Size

The length, in bytes, of this structure.

Flags

Bitwise OR of ACX_OBJECTBAG_FLAGS that is used to configure the object bag.

ParentKey

The ParentKey of the ObjectBag.

Name

The name of the ObjectBag that is used to access it.

Handle

The ObjectBag handle that is used to access the object bag.

Remarks

Example

This example shows the use of ACX_OBJECTBAG_CONFIG.

        UNICODE_STRING          uniqueIdStr = { 0 };
        UNICODE_STRING          pnpDeviceId = { 0 };
        ACX_OBJECTBAG_CONFIG    objBagCfg;

        DECLARE_CONST_ACXOBJECTBAG_SYSTEM_PROPERTY_NAME(UniqueID);

        ACX_OBJECTBAG_CONFIG_INIT(&objBagCfg);
        objBagCfg.Handle = CircuitConfig->CompositeProperties;
        objBagCfg.Flags |= AcxObjectBagConfigOpenWithHandle;

        WDF_OBJECT_ATTRIBUTES_INIT(&attributes);
        ACXOBJECTBAG objBag = NULL;

        RETURN_NTSTATUS_IF_FAILED(AcxObjectBagOpen(&attributes, &objBagCfg, &objBag));
        auto objBag_free = scope_exit([&objBag]() {
            WdfObjectDelete(objBag);
            });

        RETURN_NTSTATUS_IF_FAILED(AcxObjectBagRetrieveGuid(objBag, &UniqueID, &uniqueId));

ACX requirements

Minimum ACX version: 1.0

For more information about ACX versions, see ACX version overview.

Requirements

Requirement	Value
Header	acxmisc.h

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