///////////////////////////////////////////////////////////////

// 04FirstWindow.cpp文件

#include <windows.h>

#include<stdio.h>

// 窗口函数的函数原形

LRESULT CALLBACK MainWndProc(HWND, UINT, WPARAM, LPARAM);

int APIENTRY WinMain(HINSTANCE hInstance,

                     HINSTANCE hPrevInstance,

                     LPSTR     lpCmdLine,

                     int       nCmdShow)

{

    char szClassName[] = "MainWClass";

    WNDCLASSEX wndclass;

    // 用描述主窗口的参数填充WNDCLASSEX结构

    wndclass.cbSize = sizeof(wndclass);    // 结构的大小

    wndclass.style = CS_HREDRAW|CS_VREDRAW;    // 指定如果大小改变就重画

    wndclass.lpfnWndProc = MainWndProc;    // 窗口函数指针

    wndclass.cbClsExtra = ;        // 没有额外的类内存

    wndclass.cbWndExtra = ;        // 没有额外的窗口内存

    wndclass.hInstance = hInstance;        // 实例句柄

    wndclass.hIcon = ::LoadIcon(NULL,

            IDI_APPLICATION);    // 使用预定义图标

    wndclass.hCursor = ::LoadCursor(NULL,

            IDC_ARROW);        // 使用预定义的光标

    wndclass.hbrBackground = (HBRUSH)

        ::GetStockObject(WHITE_BRUSH);    // 使用白色背景画刷

    wndclass.lpszMenuName = NULL;        // 不指定菜单

    wndclass.lpszClassName = szClassName ;    // 窗口类的名称

    wndclass.hIconSm = NULL;        // 没有类的小图标

    // 注册这个窗口类

    ::RegisterClassEx(&wndclass); 

    // 创建主窗口

    HWND hwnd = ::CreateWindowEx(

        ,            // dwExStyle，扩展样式

        szClassName,        // lpClassName，类名

        "My first Window!",    // lpWindowName，标题

        WS_OVERLAPPEDWINDOW,    // dwStyle，窗口风格

        CW_USEDEFAULT,        // X，初始 X 坐标

        CW_USEDEFAULT,        // Y，初始 Y 坐标

        ,        // nWidth，宽度

        ,        // nHeight，高度

        NULL,            // hWndParent，父窗口句柄

        NULL,            // hMenu，菜单句柄

        hInstance,        // hlnstance，程序实例句柄

        NULL) ;            // lpParam，用户数据            

    if(hwnd == NULL)

    {

        ::MessageBox(NULL, "创建窗口出错！", "error", MB_OK);

        return -;

    }

    // 显示窗口，刷新窗口客户区

    ::ShowWindow(hwnd, nCmdShow);

    ::UpdateWindow(hwnd);

    // 从消息堆中取出消息

    MSG msg;

    while(::GetMessage(&msg, NULL, , ))

    {

        // 转化键盘消息

        ::TranslateMessage(&msg);

        // 将消息发送到相应的窗口函数

        ::DispatchMessage(&msg);

    }

    // 当GetMessage返回0时程序结束

    return msg.wParam;

}

LRESULT CALLBACK MainWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)

{

    char s[];

    int rowwidth;

    int ig = , ir = , ie = ;

    char    Test[] = "Yesterday,\nAll my troubles seemed so far away,\nNow it looks as though they're here to stay,\nOh, I believe in yesterday.\nSuddenly,\nI'm not half the man I used to be,\nThere's a shadow hanging over me,\nOh, yesterday came suddenly.\nWhy she\nHad to go I don't know, she wouldn't say.\nI said,\nSomething wrong, now I long for yesterday.\nYesterday,\nLove was such an easy game to play,\nNow I need a place to hide away,\nOh, I believe in yesterday.\nWhy she\nHad to go I don't know, she wouldn't say.\nI said,\nSomething wrong, now I long for yesterday.\nYesterday,\nLove was such an easy game to play,\nNow I need a place to hide away,\nOh, I believe in yesterday.";

    char    szT[]= "Yesterday,\n";

    char szText[] = "最简单的窗口程序！";

    int sum=;

    switch (message)

    {

    case WM_PAINT: // 窗口客户区需要重画

        {

            HDC hdc;

            PAINTSTRUCT ps;

            // 使无效的客户区变的有效，并取得设备环境句柄

            hdc = ::BeginPaint (hwnd, &ps) ;

            // 显示文字

            ::TextOut(hdc, , , szText, strlen(szText));

            ::EndPaint(hwnd, &ps);

            return ;

        }

    case WM_CREATE:

        HDC   hdc ;

        HFONT    hFont;

        int arr[];

        FILE * pFile;

        SIZE sz;

        fopen_s (&pFile,"file.txt","w+");

        hdc = GetDC(hwnd);

        hFont = CreateFont(-, ,,, FW_BOLD, false, false, false,

                DEFAULT_CHARSET,OUT_DEFAULT_PRECIS,

                CLIP_DEFAULT_PRECIS, ANTIALIASED_QUALITY, DEFAULT_PITCH,"Arial");

        SelectObject(hdc, hFont);

        //GetTextExtentPoint32(hdc,szT,strlen(szT),&sz);

        //fprintf(pFile,"w=%ld,h=%ld\n",sz.cx,sz.cy);

        GetCharWidth32(hdc,,,arr);

        //for(int i=0;i<91;i++)

        //    fprintf(pFile,"%c-->%d\n",' '+i,arr[i]);

    /*    for(int i=0;(szT[i]!='\0')&&(szT[i]!='\n');i++)

        {

            fprintf(pFile,"%c--> %d\n",szT[i],arr[int(szT[i])-32]);

            sum=sum+arr[int(szT[i])-32];

        }*/

        while(ie < )

        {

        //如果句子不是换行或者结尾,s数组保存每个句子

            if ((Test[ig] != '\n') && (Test[ig] != ))

            {

                s[ir++] = Test[ig];

            }

            //如果是结尾

            else

            {

                sum=;

                s[ir] = ;                                //添加字符串结束符

                for(int i=;s[i]!='\0';i++)

                {

                    sum=sum+arr[int(s[i])-];

                }

                rowwidth = sum;       //获得字符串宽度

                fprintf(pFile,"%d\n",rowwidth);

                for(int i = ; i < ir; i++)

                {

                    if (s[i] != ' ')

                    {

                        ie++;

                    }

                }

                ir = ;

            }

            ig++;

        }

        /*fprintf(pFile,"sum= %d",sum);*/

        fclose(pFile);

        return ;

    case WM_DESTROY: // 正在销毁窗口

        // 向消息队列投递一个WM_QUIT消息，促使GetMessage函数返回0，结束消息循环

        ::PostQuitMessage() ;

        return  ;

    }

    // 将我们不处理的消息交给系统做默认处理

    return ::DefWindowProc(hwnd, message, wParam, lParam);

}