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
| Requirement | Value |
|---|---|
| Minimum KMDF version | 1.0 |
| Minimum UMDF version | 2.0 |
| Header | wdfmemory.h (include Wdf.h) |