RtlFillMemory macro (wdm.h)

04/30/2018
2 minutes to read

The RtlFillMemory routine fills a block of memory with the specified fill value.

Syntax

void RtlFillMemory(
   void*  Destination,
   size_t Length
   int    Fill
);

Parameters

Destination

[out] A pointer to the block of memory to be filled.

Length

[in] The number of bytes in the block of memory to be filled.

Fill

[in] The value to fill the destination memory block with. This value is copied to every byte in the memory block that is defined by Destination and Length.

Return value

None

Remarks

Callers of RtlFillMemory 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


Minimum supported client	Available starting with Windows 2000.
Target Platform	Universal
Header	wdm.h (include Wdm.h, Ntddk.h, Ntifs.h)
Library	NtDll.lib (user mode); NtosKrnl.lib (kernel mode)
DLL	NtDll.dll (user mode); NtosKrnl.exe (kernel mode)
IRQL	Any level (See Remarks section)