c++设置注册表键值

 

//设置注册表指定的键值
bool SetRegValue(string path,string sSetKey,DWORD dValue)
{
    try
    {
        string sErrorMsg;
        wstring ss = AsciiToUnicode(path);
        HKEY hkey;

        LONG rt = ::RegOpenKeyExW(HKEY_LOCAL_MACHINE,ss.c_str(),0, KEY_ALL_ACCESS,&hkey);

        if(rt != ERROR_SUCCESS)
        {
            ::RegCloseKey(hkey);
            sErrorMsg =  sSetKey + ": open reg root key failed";
            throw sErrorMsg;
        }
        else
        {
            LPBYTE lpb = (LPBYTE)&dValue;
            DWORD length = sizeof(lpb);

            LONG rt = ::RegSetValueEx(hkey,AsciiToUnicode(sSetKey).c_str(),NULL,REG_DWORD,lpb,length);
            if(rt != ERROR_SUCCESS)
            {
                ::RegCloseKey(hkey);

                sErrorMsg = sSetKey + "set the needsetkey value failed!";
                throw sErrorMsg;
            }

            ::RegCloseKey(hkey);
        }
    }
    catch(string sErrorMsg)
    {
        cout<<sErrorMsg.c_str()<<endl;

        return false;

    }

    SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, 0, 0);
    return true;
}