The RtlMoveMemory routine moves memory either forward or backward, aligned or unaligned, in 4-byte blocks, followed by any remaining bytes.

VOID 
  RtlMoveMemory(
    IN VOID UNALIGNED  *Destination,
    IN CONST VOID UNALIGNED  *Source,
    IN SIZE_T  Length
    );

Parameters

Destination

Pointer to the destination of the move.

Source

Pointer to the memory to be copied.

Length

Specifies the number of bytes to be copied.

Return Value

None

Comments

The (Source + Length) can overlap the Destination range passed in to RtlMoveMemory.

Callers of RtlMoveMemory can be running at any IRQL if both memory blocks are resident. Otherwise, the caller must be running at IRQL <= APC_LEVEL.

Requirements

IRQL: Any level (See Comments section)

Headers: Declared in Wdm.h. Include Wdm.h, Ntddk.h, or Ntifs.h.

See Also

RtlCopyMemory