// wdm.h

typedef struct _KBUGCHECK_DUMP_IO {
  IN ULONG64                Offset;
  IN PVOID                  Buffer;
  IN ULONG                  BufferLength;
  IN KBUGCHECK_DUMP_IO_TYPE Type;
} KBUGCHECK_DUMP_IO, *PKBUGCHECK_DUMP_IO;
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Windows Driver Kit DDI reference (ns-wdm-_kbugcheck_dump_io)

_KBUGCHECK_DUMP_IO structure

Description

The KBUGCHECK_DUMP_IO structure describes an I/O operation on the crash dump file.

Members

`Offset`

Specifies the current offset in the crash dump file, or -1 if the crash dump file is being written sequentially.

`Buffer`

Pointer to a buffer that contains the current data to be written to the dump file.

`BufferLength`

Specifies the length of the buffer, in bytes, that is specified by the Buffer member.

`Type`

Specifies the KBUGCHECK_DUMP_IO_TYPE value that signifies the type of data to be written to the dump file.

Remarks

For information about how this structure is used, see Writing a Bug Check Callback Routine.

KBUGCHECK_DUMP_IO - NtDoc