RtlZeroMemory macro (wdm.h)
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(
void* Destination,
size_t Length
);
Parameters
[out] Destination
A pointer to the memory block to be filled with zeros.
[in] Length
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 |
|---|---|
| Target Platform | Universal |
| Header | wdm.h (include Wdm.h, Ntddk.h, Ntifs.h, Smclib.h, Minitape.h, Scsi.h, Storport.h) |
| Library | NtosKrnl.lib |
| DLL | NtosKrnl.exe |
| IRQL | Any level (See Remarks section) |
| DDI compliance rules | BufAfterReqCompletedIntIoctlA(kmdf), BufAfterReqCompletedIoctlA(kmdf), BufAfterReqCompletedReadA(kmdf), BufAfterReqCompletedWriteA(kmdf) |