WDFMEMORY_OFFSET structure (wdfmemory.h)

[Applies to KMDF and UMDF]

The WDFMEMORY_OFFSET structure identifies a subsection of a memory object's buffer.

Syntax

typedef struct _WDFMEMORY_OFFSET {
  size_t BufferOffset;
  size_t BufferLength;
} WDFMEMORY_OFFSET, *PWDFMEMORY_OFFSET;

Members

BufferOffset

A byte offset from the beginning of the memory object's buffer. This offset identifies the location of the buffer's subsection. A value of zero represents the beginning of the buffer.

BufferLength

The length, in bytes, of the buffer's subsection. A value of zero represents the entire buffer.

Remarks

The WDFMEMORY_OFFSET structure is used as a member of the WDF_MEMORY_DESCRIPTOR structure and as an input parameter to various I/O target object methods.

Requirements

   
Minimum KMDF version 1.0
Minimum UMDF version 2.0
Header wdfmemory.h (include Wdf.h)

See also

WDF_MEMORY_DESCRIPTOR