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MoveMemory function

Moves a block of memory from one location to another.

Syntax


void MoveMemory(
  _In_  PVOID Destination,
  _In_  const VOID *Source,
  _In_  SIZE_T Length
);

Parameters

Destination [in]

A pointer to the starting address of the move destination.

Source [in]

A pointer to the starting address of the block of memory to be moved.

Length [in]

The size of the block of memory to move, in bytes.

Return value

This function has no return value.

Remarks

This function is defined as the RtlMoveMemory function. Its implementation is provided inline. For more information, see WinBase.h and Winnt.h.

The source and destination blocks may overlap.

Security Remarks

The first parameter, Destination, must be large enough to hold Length bytes of Source; otherwise, a buffer overrun may occur. This may lead to a denial of service attack against the application if an access violation occurs or, in the worst case, allow an attacker to inject executable code into your process. This is especially true if Destination is a stack-based buffer. Be aware that the last parameter, Length, is the number of bytes to copy into Destination, not the size of the Destination.

Requirements

Minimum supported client

Windows XP [desktop apps only]

Minimum supported server

Windows Server 2003 [desktop apps only]

Header

WinBase.h (include Windows.h)

DLL

Kernel32.dll

See also

CopyMemory
FillMemory
Memory Management Functions
SecureZeroMemory
ZeroMemory

 

 

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