新建一个窗口程序

消息机制

创建窗口的几个步骤

1. 创建窗口类
2. 注册窗口类
3. 创建窗口
4. 显示窗口
5. 构建消息循环

创建过程

demo : https://github.com/luodaoyi/cpp_code/tree/master/MemoryInjectTool/CreateWindows

//1 创建窗口类型模板
    WNDCLASS wndclass = { 0 };
    wndclass.lpszClassName = className; //名字
    wndclass.hbrBackground = (HBRUSH)COLOR_BACKGROUND; //背景画笔句柄
    wndclass.hInstance = hInstance; //窗口过程的实例句柄
    wndclass.lpfnWndProc = WndProc; //窗口过程函数
    //2 注册窗口
    RegisterClass(&wndclass);
    //3 创建窗口
    HWND hwindows = CreateWindow(className, TEXT("MYWINDOWS"), WS_OVERLAPPEDWINDOW, 500, 300, 300, 250, NULL, NULL, hInstance,NULL);
    //创建窗口
    HWND hsitc1 = CreateWindow(L"STATIC", TEXT("账号："), WS_CHILD | WS_VISIBLE, 10, 30, 50, 20, hwindows, HMENU(IDC_STATIC1), hInstance, NULL);
    HWND hstic2 = CreateWindow(L"STATIC", TEXT("密码"), WS_CHILD | WS_VISIBLE, 10, 80, 50, 20, hwindows, HMENU(IDC_STATIC2), hInstance, NULL);
    HWND hedit1 = CreateWindow(L"EDIT", NULL, WS_CHILD | WS_VISIBLE, 80, 30, 100, 20, hwindows, HMENU(IDC_EDIT1), hInstance, NULL);
    HWND hedit2 = CreateWindow(L"EDIT", NULL, WS_CHILD | WS_VISIBLE, 80, 80, 100, 20, hwindows, HMENU(IDC_EDIT2), hInstance, NULL);
    HWND hbutt1 = CreateWindow(L"BUTTON", TEXT("登录"), WS_CHILD | WS_VISIBLE, 50, 120, 50, 25, hwindows, HMENU(IDC_BUTTM1), hInstance, NULL);
    HWND hbutt2 = CreateWindow(L"BUTTON", TEXT("取消"), WS_CHILD | WS_VISIBLE, 110, 120, 50, 25, hwindows, HMENU(IDC_BUTTM2), hInstance, NULL);
    //4 显示窗口
    ShowWindow(hwindows,SW_SHOW);
    //5 构建消息循环
    MSG msg = { NULL };
    while (GetMessage(&msg,NULL,NULL,NULL))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }