c++代码 设置允许应用通过防火墙

你可以使用Windows API来编写C++代码来设置允许应用通过防火墙。具体实现可以参考以下示例代码：

#include <Windows.h>
#include <netfw.h>

int main()
{
    HRESULT hr = S_OK;
    INetFwPolicy2* pNetFwPolicy2 = NULL;

    // 创建防火墙策略对象
    hr = CoCreateInstance(
        __uuidof(NetFwPolicy2),
        NULL,
        CLSCTX_INPROC_SERVER,
        __uuidof(INetFwPolicy2),
        (void**)&pNetFwPolicy2
    );
    if (FAILED(hr))
    {
        printf("Failed to create INetFwPolicy2 object: 0x%08lx\n", hr);
        return hr;
    }

    // 获取当前配置文件
    INetFwProfile* pNetFwProfile = NULL;
    NET_FW_PROFILE_TYPE2 profileType;
    hr = pNetFwPolicy2->get_CurrentProfileTypes(&profileType);
    if (FAILED(hr))
    {
        printf("Failed to get current profile types: 0x%08lx\n", hr);
        return hr;
    }
    hr = pNetFwPolicy2->get_ProfileByType(profileType, &pNetFwProfile);
    if (FAILED(hr))
    {
        printf("Failed to get INetFwProfile object: 0x%08lx\n", hr);
        return hr;
    }

    // 设置允许应用通过防火墙
    INetFwAuthorizedApplication* pNetFwAuthApp = NULL;
    hr = CoCreateInstance(
        __uuidof(NetFwAuthorizedApplication),
        NULL,
        CLSCTX_INPROC_SERVER,
        __uuidof(INetFwAuthorizedApplication),
        (void**)&pNetFwAuthApp
    );
    if (FAILED(hr))
    {
        printf("Failed to create INetFwAuthorizedApplication object: 0x%08lx\n", hr);
        return hr;
    }
    pNetFwAuthApp->put_Name(L"My Application");
    pNetFwAuthApp->put_ProcessImageFileName(L"C:\\MyApplication.exe");
    pNetFwAuthApp->put_Scope(NET_FW_SCOPE_ALL);
    pNetFwAuthApp->put_IpVersion(NET_FW_IP_VERSION_ANY);
    pNetFwAuthApp->put_Enabled(VARIANT_TRUE);

    INetFwAuthorizedApplications* pNetFwAuthApps = NULL;
    hr = pNetFwProfile->get_AuthorizedApplications(&pNetFwAuthApps);
    if (FAILED(hr))
    {
        printf("Failed to get INetFwAuthorizedApplications object: 0x%08lx\n", hr);
        return hr;
    }
    hr = pNetFwAuthApps->Add(pNetFwAuthApp);
    if (FAILED(hr))
    {
        printf("Failed to add authorized application: 0x%08lx\n", hr);
        return hr;
    }

    // 释放资源
    pNetFwAuthApp->Release();
    pNetFwAuthApps->Release();
    pNetFwProfile->Release();
    pNetFwPolicy2->Release();

    return 0;
}

以上示例代码使用COM接口来创建防火墙策略对象和授权应用程序对象，并添加授权应用程序到配置文件中。你只需要修改`put_Name`和`put_ProcessImageFileName`函数的参数来设置授权应用程序的名称和应用程序路径。