VS c ++删除子项不起作用!错误代码0

时间:2017-02-20 17:38:36

标签: c++ windows visual-studio key registry

我目前正在尝试从“Software \ Microsoft \ Windows \ CurrentVersion \ Run”中删除一个子项。问题是尝试了所有可能的解决方案,我的错误代码是唯一的,关于它的唯一问题尚未得到解答:how to remove program from startup list using c++。我在Windows x64 10上使用Visual Studio,程序是一个Win32应用程序。

创建密钥:

   BOOL registerForLocalStartup(PCWSTR regName, PCWSTR pathToExe, PCWSTR args)
{
    HKEY hKey = NULL;
    LONG lResult = 0;
    BOOL fSuccess = TRUE;
    DWORD dwSize;

    const size_t count = MAX_PATH * 2;
    wchar_t szValue[count] = {};


    wcscpy_s(szValue, count, L"\"");
    wcscat_s(szValue, count, pathToExe);
    wcscat_s(szValue, count, L"\" ");

    if (args != NULL)
    {
        // caller should make sure "args" is quoted if any single argument has a space
        // e.g. (L"-name \"Mark Voidale\"");
        wcscat_s(szValue, count, args);
    }

    // For admin HKEY_LOCAL_MACHINE
    lResult = RegCreateKeyEx(HKEY_CURRENT_USER, L"Software\\Microsoft\\Windows\\CurrentVersion\\Run", 0, NULL, 0, (KEY_WRITE | KEY_READ), NULL, &hKey, NULL);

    fSuccess = (lResult == 0);

    if (fSuccess)
    {
        dwSize = (wcslen(szValue) + 1) * 2;
        lResult = RegSetValueExW(hKey, regName, 0, REG_SZ, (BYTE*)szValue, dwSize);
        fSuccess = (lResult == 0);
    }

    if (hKey != NULL)
    {
        RegCloseKey(hKey);
        hKey = NULL;
    }

    return fSuccess;
}

这是我的代码:

bool DeleteValueKey(HKEY hKeyRoot, std::wstring Subkey, std::wstring ValueKey)
{
    HKEY    hKey = NULL;
    bool    bReturn = false;

    long result = RegOpenKeyEx(hKeyRoot, Subkey.c_str(), 0, KEY_READ | KEY_WRITE | KEY_WOW64_32KEY, &hKey);

    wcout << "Result of RegOpenKeyEx: " << result << endl;

    if (result == ERROR_SUCCESS)
    {
        long result2 = RegDeleteKeyEx(hKey, ValueKey.c_str(), KEY_WOW64_32KEY, 0);
        wcout << "Result of RegDeleteKeyEx: " << result2 << endl;
        if (result2 == ERROR_SUCCESS)
        {
            bReturn = true;
        }
    }

    if (hKey != NULL) { RegCloseKey(hKey); }

    return bReturn;
}

这就是我试着说的:

bool result = DeleteValueKey(HKEY_CURRENT_USER, L"Software\\Microsoft\\Windows\\CurrentVersion\\Run", L"test1");

            if (result)
            {
                wcout << "SUCCESS" << endl;
            }
            else
            {
                wcout << "FAILURE: "<< GetLastError() << endl;
            }*/

输出:

Result of RegOpenKeyEx: 0 
Result of RegDeleteKeyEx: 2 
FAILURE: 0

有人有想法吗?我疯了,不能解决这个明显的问题...

1 个答案:

答案 0 :(得分:1)

要删除中的,您应该使用RegDeleteKeyValue(如果您支持WinXP及更早版本,则使用RegDeleteValue)。

RegDeleteKeyEx用于删除整个密钥(及其所有值),并且您不希望在此处执行此操作,因为您不拥有Run密钥。

有关用于描述注册表各个部分的术语,请参阅this blog post