RtlZeroMemory

The RtlZeroMemory routine fills a block of memory with zeros, given a pointer to the block and the length, in bytes, to be filled.

VOID 
  RtlZeroMemory(
    IN VOID UNALIGNED  *Destination,
    IN SIZE_T  Length
    );

Parameters

Destination

Pointer to the memory to be filled with zeros.

Length

Specifies the number of bytes to be zeroed.

Return Value

None

Headers

Declared in wdm.h and ntddk.h. Include wdm.h or ntddk.h.

Comments

To zero out a memory buffer to erase security-sensitive data, use RtlSecureZeroMemory instead.

Callers of RtlZeroMemory can be running at any IRQL if the Destination block is in nonpaged pool. Otherwise, the caller must be running at IRQL < DISPATCH_LEVEL.

See Also

RtlFillMemory, RtlSecureZeroMemory