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RtlZeroMemory macro (ntddstor.h)

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

Syntax

void RtlZeroMemory(
   Destination,
   Length
);

Parameters

Destination

Datatype: void*. A pointer to the memory block to be filled with zeros.

Length

Datatype: size_t. The number of bytes to fill with zeros.

Return value

None

Remarks

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 memory block is in nonpaged system memory. Otherwise, the caller must be running at IRQL <= APC_LEVEL.

Requirements

Requirement Value
Header ntddstor.h
DDI compliance rules BufAfterReqCompletedIntIoctlA(kmdf), BufAfterReqCompletedIoctlA(kmdf), BufAfterReqCompletedReadA(kmdf), BufAfterReqCompletedWriteA(kmdf)

See also

RtlFillMemory

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