C++ 获取注册表项只返回一个字符

Question

我试图检索一个键的值，但我只得到该值的第一个字符..谁能帮忙？

我的代码:

void dealWithRegistry()
{
    HKEY regkey1;
    char data[100];
    DWORD datasize = sizeof (data) / sizeof (char);
    LONG rc = RegOpenKeyEx(HKEY_LOCAL_MACHINE, L"SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run", 0, KEY_READ, &regkey1);
    if (rc != ERROR_SUCCESS)
    {
        cout << "there was a problem openning" << endl;
    }
    else
    {
        rc = RegGetValue (regkey1, NULL, L"AppData", RRF_RT_REG_SZ, NULL, (void*) data, &datasize);
        if (rc != ERROR_SUCCESS)
        {
            cout << data << endl;
            cout << "there was a problem getting the value" << endl;
        }
    }
    cout << data << endl;

}

Answer 1

它可能正在返回 Unicode 数据，而您只打印第一个字符。对此的快速测试是更改对 RegGetValueA 的调用。