inputbox.c

#include<windows.h>

/**
 * pin 码输入框
 *
 * @param hWnd
 * @param message
 * @param wParam
 * @param lParam
 * @return
 */
LRESULT CALLBACK InputPINCodeProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
    int wmId, wmEvent;
    PAINTSTRUCT ps;
    HDC hdc;
    static HFONT hFont;  //逻辑字体
    static HWND hLabUsername;  //静态文本框--用户名
    static HWND hLabPassword;  //静态文本框--密码
    static HWND hEditUsername;  //单行文本输入框
    static HWND hEditPassword;  //密码输入框
    static HWND hBtnLogin;  //登录按钮
    //定义缓冲区
    TCHAR szUsername[100];
    TCHAR szPassword[100];
    TCHAR szUserInfo[200];
    switch (message) {
    case WM_CREATE:
        //创建逻辑字体
        hFont = CreateFont(-14/*高*/, -7/*宽*/, 0, 0, 400 /*一般这个值设为400*/,
            FALSE/*斜体?*/, FALSE/*下划线?*/, FALSE/*删除线?*/, DEFAULT_CHARSET,
            OUT_CHARACTER_PRECIS, CLIP_CHARACTER_PRECIS, DEFAULT_QUALITY,
            FF_DONTCARE, TEXT("微软雅黑")
        );
        //创建静态文本框控件--密码
        hLabPassword = CreateWindow(TEXT("static"), TEXT("PIN码："),
            WS_CHILD | WS_VISIBLE | SS_CENTERIMAGE /*垂直居中*/ | SS_RIGHT /*水平居右*/,
            0, 56, 70, 26,
            hWnd, (HMENU)2, NULL, NULL
        );

        //创建密码输入框
        hEditPassword = CreateWindow(TEXT("edit"), TEXT(""),
            WS_CHILD | WS_VISIBLE | WS_BORDER | ES_PASSWORD /*密码*/ |
            ES_AUTOHSCROLL /*水平滚动*/,
            80, 56, 200, 26,
            hWnd, (HMENU)4, NULL, NULL
        );
        //创建按钮控件
        hBtnLogin = CreateWindow(TEXT("button"), TEXT("确定"),
            WS_CHILD | WS_VISIBLE | WS_BORDER | BS_FLAT/*扁平样式*/,
            80, 92, 200, 30,
            hWnd, (HMENU)5, NULL, NULL
        );
        //依次设置控件的字体
        SendMessage(hLabPassword, WM_SETFONT, (WPARAM)hFont, NULL);
        SendMessage(hEditPassword, WM_SETFONT, (WPARAM)hFont, NULL);
        SendMessage(hBtnLogin, WM_SETFONT, (WPARAM)hFont, NULL);
        break;
    case WM_COMMAND:
        wmId = LOWORD(wParam);
        wmEvent = HIWORD(wParam);
        switch (wmId) {
        case 5:  //按钮的HMENU参数
            //获取输入框的数据
            GetWindowText(hEditPassword, szPassword, 100);
            wsprintf(szUserInfo, TEXT("C语言中文网提示：\r\n您的用户密码：%s"), szPassword);
            MessageBox(hWnd, szUserInfo, TEXT("信息提示"), MB_ICONINFORMATION);
            break;
        default:
            return DefWindowProc(hWnd, message, wParam, lParam);
        }
        break;
    case WM_PAINT:
        hdc = BeginPaint(hWnd, &ps);
        // TODO:  在此添加任意绘图代码...
        EndPaint(hWnd, &ps);
        break;
    case WM_DESTROY:
        DeleteObject(hFont);
        PostQuitMessage(0);
        break;
    default:
        return DefWindowProc(hWnd, message, wParam, lParam);
    }
    return 0;
}


/**
 * 文本必须是 GBK 编码，否则显示乱码
 *
 * @param hWnd
 * @param message
 * @param wParam
 * @param lParam
 * @return
 */
LRESULT CALLBACK LoginProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
    int wmId, wmEvent;
    PAINTSTRUCT ps;
    HDC hdc;
    static HFONT hFont;  //逻辑字体
    static HWND hLabUsername;  //静态文本框--用户名
    static HWND hLabPassword;  //静态文本框--密码
    static HWND hEditUsername;  //单行文本输入框
    static HWND hEditPassword;  //密码输入框
    static HWND hBtnLogin;  //登录按钮
    //定义缓冲区
    TCHAR szUsername[100];
    TCHAR szPassword[100];
    TCHAR szUserInfo[200];
    switch (message) {
    case WM_CREATE:
        //创建逻辑字体
        hFont = CreateFont(-14/*高*/, -7/*宽*/, 0, 0, 400 /*一般这个值设为400*/,
            FALSE/*斜体?*/, FALSE/*下划线?*/, FALSE/*删除线?*/, DEFAULT_CHARSET,
            OUT_CHARACTER_PRECIS, CLIP_CHARACTER_PRECIS, DEFAULT_QUALITY,
            FF_DONTCARE, TEXT("微软雅黑")
        );
        //创建静态文本框控件--用户名
        // hInstance 可以设置为 NULL，不清楚该参数作用
        hLabUsername = CreateWindow(TEXT("static"), TEXT("用户名："),
            WS_CHILD | WS_VISIBLE | SS_CENTERIMAGE /*垂直居中*/ | SS_RIGHT /*水平居右*/,
            0 /*x坐标*/, 20 /*y坐标*/, 70 /*宽度*/, 26 /*高度*/,
            hWnd /*父窗口句柄*/, (HMENU)1 /*控件ID*/, NULL /*当前程序实例句柄*/, NULL
        );
        //创建静态文本框控件--密码
        hLabPassword = CreateWindow(TEXT("static"), TEXT("密码："),
            WS_CHILD | WS_VISIBLE | SS_CENTERIMAGE /*垂直居中*/ | SS_RIGHT /*水平居右*/,
            0, 56, 70, 26,
            hWnd, (HMENU)2, NULL, NULL
        );
        //创建单行文本框控件
        hEditUsername = CreateWindow(TEXT("edit"), TEXT(""),
            WS_CHILD | WS_VISIBLE | WS_BORDER /*边框*/ | ES_AUTOHSCROLL /*水平滚动*/,
            80, 20, 200, 26,
            hWnd, (HMENU)3, NULL, NULL
        );
        //创建密码输入框
        hEditPassword = CreateWindow(TEXT("edit"), TEXT(""),
            WS_CHILD | WS_VISIBLE | WS_BORDER | ES_PASSWORD /*密码*/ |
            ES_AUTOHSCROLL /*水平滚动*/,
            80, 56, 200, 26,
            hWnd, (HMENU)4, NULL, NULL
        );
        //创建按钮控件
        hBtnLogin = CreateWindow(TEXT("button"), TEXT("登录"),
            WS_CHILD | WS_VISIBLE | WS_BORDER | BS_FLAT/*扁平样式*/,
            80, 92, 200, 30,
            hWnd, (HMENU)5, NULL, NULL
        );
        //依次设置控件的字体
        SendMessage(hLabUsername, WM_SETFONT, (WPARAM)hFont, NULL);
        SendMessage(hLabPassword, WM_SETFONT, (WPARAM)hFont, NULL);
        SendMessage(hEditUsername, WM_SETFONT, (WPARAM)hFont, NULL);
        SendMessage(hEditPassword, WM_SETFONT, (WPARAM)hFont, NULL);
        SendMessage(hBtnLogin, WM_SETFONT, (WPARAM)hFont, NULL);
        break;
    case WM_COMMAND:
        wmId = LOWORD(wParam);
        wmEvent = HIWORD(wParam);
        switch (wmId) {
        case 5:  //按钮的HMENU参数
            //获取输入框的数据
            GetWindowText(hEditUsername, szUsername, 100);
            GetWindowText(hEditPassword, szPassword, 100);
            wsprintf(szUserInfo, TEXT("C语言中文网提示：\r\n您的用户账号：%s\r\n您的用户密码：%s"), szUsername, szPassword);
            MessageBox(hWnd, szUserInfo, TEXT("信息提示"), MB_ICONINFORMATION);
            break;
        default:
            return DefWindowProc(hWnd, message, wParam, lParam);
        }
        break;
    case WM_PAINT:
        hdc = BeginPaint(hWnd, &ps);
        // TODO:  在此添加任意绘图代码...
        EndPaint(hWnd, &ps);
        break;
    case WM_DESTROY:
        DeleteObject(hFont);
        PostQuitMessage(0);
        break;
    default:
        return DefWindowProc(hWnd, message, wParam, lParam);
    }
    return 0;
}


/**
 * 入口函数
 *
 * @param hInstance
 * @param hPrevInstance
 * @param szCmdLine
 * @param iCmdShow
 * @return
 */
int WINAPI WinMain(
    HINSTANCE hInstance,
    HINSTANCE hPrevInstance,
    PSTR szCmdLine,
    int iCmdShow
) {
    static TCHAR szClassName[] = TEXT("HelloWin");  //窗口类名
    HWND hwnd;  //窗口句柄
    MSG msg;  //消息
    WNDCLASS wndclass;  //窗口类

    /**********第①步：注册窗口类**********/
    //为窗口类的各个字段赋值
    wndclass.style = CS_HREDRAW | CS_VREDRAW;  //窗口风格
    wndclass.lpfnWndProc = InputPINCodeProc;  //窗口过程
    wndclass.cbClsExtra = 0;  //暂时不需要理解
    wndclass.cbWndExtra = 0;  //暂时不需要理解
    wndclass.hInstance = NULL;  //当前窗口句柄
    wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);  //窗口图标
    wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);  //鼠标样式
    wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);  //窗口背景画刷
    wndclass.lpszMenuName = NULL;  //窗口菜单
    wndclass.lpszClassName = szClassName;  //窗口类名

    //注册窗口
    RegisterClass(&wndclass);

    /*****第②步：创建窗口(并让窗口显示出来)*****/
    hwnd = CreateWindow(
        szClassName,  //窗口类的名字
        TEXT("请输入 PIN 码"),  //窗口标题（出现在标题栏）
        WS_OVERLAPPEDWINDOW,  //窗口风格
        CW_USEDEFAULT,  //初始化时x轴的位置
        CW_USEDEFAULT,  //初始化时y轴的位置
        350,  //窗口宽度
        200,  //窗口高度
        NULL,  //父窗口句柄
        NULL,  //窗口菜单句柄
        hInstance,  //当前窗口的句柄
        NULL  //不使用该值
    );

    //显示窗口
    ShowWindow(hwnd, iCmdShow);
    //更新（绘制）窗口
    UpdateWindow(hwnd);

    /**********第③步：消息循环**********/
    while (GetMessage(&msg, NULL, 0, 0)) {
        TranslateMessage(&msg);  //翻译消息
        DispatchMessage(&msg);  //分派消息
    }

    return msg.wParam;
}