[C++] 纯文本查看 复制代码
void ZeroMemory(
[in] PVOID Destination,
[in] SIZE_T Length
);
void FillMemory(
[out] PVOID Destination,
[in] SIZE_T Length,
[in] BYTE Fill
);
[C++] 纯文本查看 复制代码
// ZeroFillMem.cpp : 定义控制台应用程序的入口点。
//
#include "stdafx.h"
#include <Windows.h>
#include <locale.h>
#define MEM_BLOCK_SIZE 64
BOOL ShowMem(LPVOID lpMem, SIZE_T dwSize)
{
UCHAR lpShow[MEM_BLOCK_SIZE];
INT i = 0;
//防止栈溢出
if (dwSize > MEM_BLOCK_SIZE) {
_tprintf(TEXT("要求打印的内存长度过大！"));
return FALSE;
}
//复制到数组
CopyMemory((LPVOID)lpShow, lpMem, dwSize);
for (; i < dwSize; i++) {
printf ("%.2x ", lpShow);
if (!((i + 1) % 16)) {
printf ("\n");
}
}
_tprintf (TEXT("\n"));
return TRUE;
}
int _tmain(int argc, _TCHAR* argv[])
{
setlocale (LC_ALL, "CHS");
HANDLE hHeap = GetProcessHeap();
LPVOID lpSrc;
lpSrc = HeapAlloc(hHeap, 0, MEM_BLOCK_SIZE);
_tprintf (TEXT("HeapAlloc() 分配了内存但不清零，下面打印分配的内存内容：\n"));
ShowMem(lpSrc, MEM_BLOCK_SIZE);
_tprintf (TEXT("清零内存：\n"));
ZeroMemory (lpSrc, MEM_BLOCK_SIZE);
ShowMem(lpSrc, MEM_BLOCK_SIZE);
_tprintf (TEXT("使用 0x55 填充上半部分内存，用 0xAA 填充下半部分内存：\n"));
FillMemory (lpSrc, MEM_BLOCK_SIZE, 0x55);
FillMemory (lpSrc, MEM_BLOCK_SIZE/2, 0xAA);
ShowMem(lpSrc, MEM_BLOCK_SIZE);
return 0;
}