C++从注册表中获取用户的历史记录

2012-08-24 16:43 ⁄ 工业·编程 ⁄ 共 3850字 ⁄ 字号小中大 ⁄ 暂无评论

1.主要是读取注册表中HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\TypedURLs的值，至于怎么读取注册表。
C++中：

HKEY hKey;
RegOpenKey(HKEY_LOCAL_MACHINE,"HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\TypedURLs",&hKey);
DWORD dwType;//返回类型
char buffer[20];//数据缓存
DWORD dwValue;//数据长度
RegQueryValueEx(hKey,NULL,0,&dwType,(LPBYTE)buffer,&dwValue);
buffer[dwValue]=0;
CString str;
str.Format("%s",buffer);
MessageBox(str);

2.下面是别人写的

********************************************************************
//   purpose   :   to   master   the   arith   of   bianli
#include <stdio.h>
#include <time.h>
#include <windows.h>

HKEY   hKey[]   =   {HKEY_CLASSES_ROOT,
      HKEY_CURRENT_USER,
      HKEY_LOCAL_MACHINE,
      HKEY_USERS,
      HKEY_CURRENT_CONFIG};
char   *sKey[]   =   { "HEKY_CLASSES_ROOT ",
      "HEKY_CURRENT_USER ",
      "HEKY_LOCAL_MACHINE ",
      "HEKY_USERS ",
      "HEKY_CURRENT_CONFIG "};

char data_set[1024];
DWORD nCount   =   0; //   calculate   the   keys   number

void   EnumValue(HKEY hKey)
{
int   dwIndex   =   0;
char valuename[MAX_PATH   +   1];
DWORD valuenamelen;
DWORD Type;
union{
BYTE data[1024];
DWORD idata;
}lpdata;
DWORD datalen;

valuenamelen   =   sizeof(valuename);
datalen   =   sizeof(lpdata);
memset(&lpdata,0,sizeof(lpdata));
while(::RegEnumValue   (hKey,dwIndex,(LPTSTR)valuename,&valuenamelen,
0,&Type,lpdata.data,&datalen)   !=   ERROR_NO_MORE_ITEMS)
{
switch(Type)
{
case   REG_SZ:
printf( "value:\t%s\tdata:\t%s\n ",valuename,(char*)lpdata.data);
break;
case   REG_DWORD:
printf( "value:\t%sdata:\t%ld\n ",valuename,lpdata.idata);
break;
default:
break;
}

dwIndex   ++;
valuenamelen   =   sizeof(valuename);
datalen   =   sizeof(lpdata);
memset(&lpdata,0,sizeof(lpdata));
}

}

void   EnumKey(HKEY hKey,char   *sKey)
{
HKEY h;
int   dwIndex   =   0;

char strkey[2048];
char name[1024]   =   {0};
DWORD namelen   =   sizeof(name);
FILETIME ftLastWriteTime;

if(::RegOpenKeyEx   (hKey,(LPTSTR)data_set,0,KEY_READ,&h)   !=   ERROR_SUCCESS)
{
printf( "cann 't   open   key   %s!\n ",strkey);
return;
}

while(::RegEnumKeyEx   (h,dwIndex,name,&namelen,0,NULL,NULL,&ftLastWriteTime)   !=   ERROR_NO_MORE_ITEMS)
{
EnumValue(h);
nCount   ++;
printf( "%s\\%s\n ",sKey,name);
Sleep(100);
HKEY hk;
if(::RegOpenKeyEx   (h,(LPTSTR)name,0,KEY_READ,&hk)   ==   ERROR_SUCCESS)
{
strcpy(data_set, " ");
strcpy(strkey,sKey);
strcat(strkey, "\\ ");
strcat(strkey,name);
EnumKey(hk,strkey);
::RegCloseKey   (hk);
}
dwIndex   +=   1;
namelen   =   sizeof(name); //must   be   specified   every   time!!!
}
::RegCloseKey   (hKey);

}

void   main()
{
printf( "Enum   all   reg   keys   and   values\n ");
time_t start,end;
time(&start);
for(int   i   =   0   ;   i   <   5;   i++)
{
strcpy(data_set, " ");
EnumKey(hKey[i],sKey[i]);
}
time(&end);
printf( "altogether   %ld   keys!!!\n ",nCount);
printf( "using   time   :   %ld   seconds!\n ",end   -   start   );

}
*****************************************************************
3.下面是我改写的，可以用

HKEY hKey;
    long lon = RegOpenKeyEx(HKEY_CURRENT_USER,"Software\\Microsoft\\Internet Explorer\\TypedURLs", 0, KEY_READ,&hKey);
    vector<string> vecStrUrls ;

    int     dwIndex = 0 ;
    char    szValueName[MAX_PATH] = {0} ;
    DWORD   dwValueVameLen = MAX_PATH ;
    DWORD   dwType;
    union
    {
        BYTE data[1024];
        DWORD idata;
    }lpdata;
    DWORD dwDataLen = sizeof(lpdata);
    DWORD Type ;
    memset(&lpdata, 0, sizeof(lpdata));
    while(RegEnumValue(hKey, dwIndex, (LPTSTR)szValueName, &dwValueVameLen, 0, &Type, lpdata.data, &dwDataLen) != ERROR_NO_MORE_ITEMS)
    {
        switch(Type)
        {
        case REG_SZ:
            vecStrUrls.push_back((char*)lpdata.data) ; // 必须要转下，因为 BYTE（unsigned char）和 char 是不可以默认转的。
            break;
        default:
            break;
        }

        dwIndex++;
        dwValueVameLen =   sizeof(szValueName);
        dwDataLen       =   sizeof(lpdata);
        memset(&lpdata, 0, sizeof(lpdata));
    }

    RegCloseKey(hKey) ;