使用英伟达的最新版本的NvAPI和D3D11实现同时Present多个窗口，保证窗口内容相同，给出用例代码

以下是使用NvAPI和D3D11实现同时Present多个窗口，并保证窗口内容相同的用例代码：

#include <windows.h>
#include <d3d11.h>
#include <Nvapi.h>

#pragma comment(lib, "d3d11.lib")
#pragma comment(lib, "nvapi.lib")

#define NUM_WINDOWS 2 // 可以改变此值以增加或减少窗口数量

HWND g_hWnd[NUM_WINDOWS] = { NULL };
IDXGISwapChain* g_pSwapChain[NUM_WINDOWS] = { NULL };
ID3D11Device* g_pDevice = NULL;
ID3D11DeviceContext* g_pDeviceContext = NULL;
ID3D11RenderTargetView* g_pRenderTargetView[NUM_WINDOWS] = { NULL };
NvAPI_Status g_nvapiStatus = NVAPI_OK;
NvPhysicalGpuHandle g_gpuHandles[NVAPI_MAX_PHYSICAL_GPUS] = { NULL };
NvU32 g_gpuCount = 0;

void InitializeWindow(HWND hWnd)
{
    // 设置窗口样式和大小
    SetWindowLong(hWnd, GWL_STYLE, WS_OVERLAPPEDWINDOW);
    RECT rc = { 0, 0, 800, 600 };
    AdjustWindowRect(&rc, WS_OVERLAPPEDWINDOW, FALSE);
    SetWindowPos(hWnd, NULL, 100, 100, rc.right - rc.left, rc.bottom - rc.top, SWP_NOZORDER | SWP_NOMOVE);

    // 显示窗口
    ShowWindow(hWnd, SW_SHOW);
    UpdateWindow(hWnd);
}

void InitializeD3D(HWND hWnd)
{
    HRESULT hr = S_OK;

    // 创建D3D11设备和设备上下文
    D3D_FEATURE_LEVEL featureLevels[] = { D3D_FEATURE_LEVEL_11_0 };
    hr = D3D11CreateDevice(NULL, D3D_DRIVER_TYPE_HARDWARE, NULL, 0, featureLevels, ARRAYSIZE(featureLevels),
        D3D11_SDK_VERSION, &g_pDevice, NULL, &g_pDeviceContext);
    if (FAILED(hr))
        return;

    // 获取窗口大小
    RECT rc;
    GetClientRect(hWnd, &rc);
    UINT width = rc.right - rc.left;
    UINT height = rc.bottom - rc.top;

    // 创建DXGI交换链
    DXGI_SWAP_CHAIN_DESC sd;
    ZeroMemory(&sd, sizeof(sd));
    sd.BufferCount = 1;
    sd.BufferDesc.Width = width;
    sd.BufferDesc.Height = height;
    sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
    sd.BufferDesc.RefreshRate.Numerator = 60;
    sd.BufferDesc.RefreshRate.Denominator = 1;
    sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
    sd.OutputWindow = hWnd;
    sd.SampleDesc.Count = 1;
    sd.SampleDesc.Quality = 0;
    sd.Windowed = TRUE;
    hr = D3D11CreateDeviceAndSwapChain(NULL, D3D_DRIVER_TYPE_HARDWARE, NULL, 0, featureLevels, ARRAYSIZE(featureLevels),
        D3D11_SDK_VERSION, &sd, &g_pSwapChain[0], &g_pDevice, NULL, &g_pDeviceContext);
    if (FAILED(hr))
        return;

    // 创建渲染目标视图
    ID3D11Texture2D* pBackBuffer = NULL;
    hr = g_pSwapChain[0]->GetBuffer(0, __uuidof(ID3D11Texture2D), (LPVOID*)&pBackBuffer);
    if (FAILED(hr))
        return;
    hr = g_pDevice->CreateRenderTargetView(pBackBuffer, NULL, &g_pRenderTargetView[0]);
    pBackBuffer->Release();
    if (FAILED(hr))
        return;

    // 将渲染目标视图绑定到渲染管线输出合并阶段
    g_pDeviceContext->OMSetRenderTargets(1, &g_pRenderTargetView[0], NULL);
}

void PresentAllWindows()
{
    for (int i = 0; i < NUM_WINDOWS; i++)
    {
        g_pSwapChain[i]->Present(0, 0);
    }
}

void Cleanup()
{
    // 释放资源
    for (int i = 0; i < NUM_WINDOWS; i++)
    {
        if (g_pRenderTargetView[i]) g_pRenderTargetView[i]->Release();
        if (g_pSwapChain[i]) g_pSwapChain[i]->Release();
        if (g_hWnd[i]) DestroyWindow(g_hWnd[i]);
    }
    if (g_pDeviceContext) g_pDeviceContext->Release();
    if (g_pDevice) g_pDevice->Release();
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
    // 初始化NvAPI
    g_nvapiStatus = NvAPI_Initialize();
    if (g_nvapiStatus != NVAPI_OK)
        return 0;

    // 获取GPU数量和句柄
    NvAPI_Status status = NvAPI_EnumPhysicalGPUs(g_gpuHandles, &g_gpuCount);
    if (status != NVAPI_OK)
        return 0;

    // 创建窗口
    for (int i = 0; i < NUM_WINDOWS; i++)
    {
        g_hWnd[i] = CreateWindow(TEXT("STATIC"), TEXT("Window"), WS_OVERLAPPEDWINDOW,
            CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL);
        if (g_hWnd[i] == NULL)
            return 0;
        InitializeWindow(g_hWnd[i]);
    }

    // 初始化D3D
    InitializeD3D(g_hWnd[0]);

    // 主消息循环
    MSG msg = { 0 };
    while (msg.message != WM_QUIT)
    {
        if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
        {
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
        else
        {
            // 在所有窗口上呈现相同的内容
            for (int i = 0; i < NUM_WINDOWS; i++)
            {
                g_pDeviceContext->ClearRenderTargetView(g_pRenderTargetView[i], DirectX::Colors::CornflowerBlue);
            }
            PresentAllWindows();
        }
    }

    // 清理并退出
    Cleanup();
    NvAPI_Unload();
    return (int)msg.wParam;
}

此代码创建了多个窗口，并使用NvAPI和D3D11在所有窗口上呈现相同的内容。注意，此代码仅在单个GPU上测试，可能需要进行修改才能在多GPU系统上运行。