// wdm.h

typedef union _OB_PRE_OPERATION_PARAMETERS {
  OB_PRE_CREATE_HANDLE_INFORMATION    CreateHandleInformation;
  OB_PRE_DUPLICATE_HANDLE_INFORMATION DuplicateHandleInformation;
} OB_PRE_OPERATION_PARAMETERS, *POB_PRE_OPERATION_PARAMETERS;
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Windows Driver Kit DDI reference (ns-wdm-_ob_pre_operation_parameters)

_OB_PRE_OPERATION_PARAMETERS structure

Description

The OB_PRE_OPERATION_PARAMETERS union describes the operation-specific parameters for an ObjectPreCallback routine.

Members

`CreateHandleInformation`

An OB_PRE_CREATE_HANDLE_INFORMATION structure that contains information that is specific to a handle that is being opened.

`DuplicateHandleInformation`

An OB_PRE_DUPLICATE_HANDLE_INFORMATION structure that contains information that is specific to a handle that is being duplicated.

OB_PRE_OPERATION_PARAMETERS - NtDoc