C++windows窗口代码

当然，这是一个简单的示例代码，用于创建一个基本的 Windows 窗口：

#include <windows.h>

LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
    // 注册窗口类
    const char* CLASS_NAME = "MyWindowClass";
    
    WNDCLASS wc = {};
    wc.lpfnWndProc = WindowProc;
    wc.hInstance = hInstance;
    wc.lpszClassName = CLASS_NAME;
    
    RegisterClass(&wc);
    
    // 创建窗口
    HWND hwnd = CreateWindowEx(
        0,
        CLASS_NAME,
        "My Window",
        WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
        NULL,
        NULL,
        hInstance,
        NULL
    );
    
    if (hwnd == NULL)
    {
        return 0;
    }
    
    // 显示窗口
    ShowWindow(hwnd, nCmdShow);
    
    // 消息循环
    MSG msg = {};
    while (GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    
    return 0;
}

LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    switch (uMsg)
    {
        case WM_DESTROY:
            PostQuitMessage(0);
            return 0;
        
        case WM_PAINT:
            {
                PAINTSTRUCT ps;
                HDC hdc = BeginPaint(hwnd, &ps);
                FillRect(hdc, &ps.rcPaint, (HBRUSH)(COLOR_WINDOW + 1));
                EndPaint(hwnd, &ps);
            }
            return 0;
    }
    
    return DefWindowProc(hwnd, uMsg, wParam, lParam);
}

这是一个最基本的窗口代码，它创建了一个空白窗口，并在窗口区域绘制一个白色背景。你可以根据自己的需要对其进行扩展和修改。