c++ 生成一个窗口并嵌入图片，不使用mfc

可以使用 Win32 API 来生成一个窗口并嵌入图片。具体步骤如下：

1. 引入所需的头文件和库文件：

#include <windows.h>
#include <wingdi.h>

#pragma comment(lib, "user32.lib")
#pragma comment(lib, "gdi32.lib")

2. 定义窗口过程函数：

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message)
    {
    case WM_PAINT:
        {
            PAINTSTRUCT ps;
            HDC hdc = BeginPaint(hWnd, &ps);
            HBITMAP hBitmap = (HBITMAP)LoadImage(NULL, L"image.bmp", IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
            HDC hdcMem = CreateCompatibleDC(hdc);
            HBITMAP hOldBitmap = (HBITMAP)SelectObject(hdcMem, hBitmap);
            BITMAP bitmap;
            GetObject(hBitmap, sizeof(BITMAP), &bitmap);
            StretchBlt(hdc, 0, 0, bitmap.bmWidth, bitmap.bmHeight, hdcMem, 0, 0, bitmap.bmWidth, bitmap.bmHeight, SRCCOPY);
            SelectObject(hdcMem, hOldBitmap);
            DeleteDC(hdcMem);
            DeleteObject(hBitmap);
            EndPaint(hWnd, &ps);
        }
        break;
    case WM_DESTROY:
        PostQuitMessage(0);
        break;
    default:
        return DefWindowProc(hWnd, message, wParam, lParam);
    }
    return 0;
}

3. 注册窗口类并创建窗口：

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
    WNDCLASSEX wcex = {0};
    wcex.cbSize = sizeof(WNDCLASSEX);
    wcex.style = CS_HREDRAW | CS_VREDRAW;
    wcex.lpfnWndProc = WndProc;
    wcex.hInstance = hInstance;
    wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
    wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
    wcex.lpszClassName = L"MyWindowClass";
    if (!RegisterClassEx(&wcex))
    {
        MessageBox(NULL, L"窗口类注册失败！", L"错误", MB_OK | MB_ICONERROR);
        return 1;
    }

    HWND hWnd = CreateWindow(L"MyWindowClass", L"窗口标题", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 800, 600, NULL, NULL, hInstance, NULL);
    if (!hWnd)
    {
        MessageBox(NULL, L"窗口创建失败！", L"错误", MB_OK | MB_ICONERROR);
        return 1;
    }

    ShowWindow(hWnd, nCmdShow);
    UpdateWindow(hWnd);

    MSG msg = {0};
    while (GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }

    return (int)msg.wParam;
}

4. 在程序目录下放置一张名为 `image.bmp` 的图片即可。

以上就是一个使用 Win32 API 生成窗口并嵌入图片的示例代码。