windows多线程窗口程序设计

掌握windows基于消息驱动的窗口应用程序设计的基本方法，掌握窗口程序资源的概念与设计，掌握常用的消息的程序处理方法，掌握文字图形输出相关函数编程。掌握设计的基本方法(选项)，掌握时钟消息设计动画程序(选项)

利用windows基于消息驱动的窗口应用程序设计的基本方法，利用常用的消息程序处理方法，设计一个多线程程序，然后用时钟动画将各线程的执行过程直观的表现出来。

操作环境：安装有Windows操作系统PC机一台，实验环境为VS(任何版本都行).

 

1.在vs中，生成一个空白的win32项目，了解win32的消息驱动，学习窗口程序资源的概念与设计，并为程序设计一个位图图标。







2. 观察win32程序基本结构，了解常用的消息的程序处理方法，掌握文字图形输出相关函数编程，并练习文字与图形的输出。

3.设计并构建程序用户界面

菜单栏



线程设置对话框



菜单与对话框函数如下：

// 分析菜单选择:


LRESULT
CALLBACK WndProc(HWND
hWnd, UINT
message, WPARAM
wParam, LPARAM
lParam)


{


    int wmId, wmEvent;


    PAINTSTRUCT ps;


    HDC hdc;


    int pausecount;


 

    switch (message)


    {


    case
WM_COMMAND:


        wmId = LOWORD(wParam);


        wmEvent = HIWORD(wParam);


        // 分析菜单选择:


        switch (wmId)


        {


        case
IDM_ABOUT:


            switch (DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About))


            {


            case
IDSTART:


                CreateThreadStart(hWnd);


                //GetSecurityInfo


                break;


 

            case
IDPAUSE:


                pausecount=SuspendThread((HANDLE)ThreadId[treatwith]);


                pausecount=SuspendThread(ThreadHandle[treatwith]);


                if(pausecount==-1)


                {


                    pausecount=GetLastError();


                }


                break;


            case
IDRESET:


                pausecount=ResumeThread((HANDLE)ThreadId[treatwith]);


                pausecount=ResumeThread(ThreadHandle[treatwith]);


                if(pausecount==-1)


                {


                    pausecount=GetLastError();


                }


                break;


            }


            break;


        


        case
IDM_EXIT:


            DestroyWindow(hWnd);


            break;


        default:


            return
DefWindowProc(hWnd, message, wParam, lParam);


        }


        break;


    case
WM_SIZE:


        wndWidthSize=LOWORD(lParam);


        wndHighSize=HIWORD(lParam);


        break;


    case
WM_PAINT:


        hdc = BeginPaint(hWnd, &ps);


        //TextOut(hdc,100,50,_T("SOUTH WEST UNIVERSITY"),wcslen(_T("SOUTH WEST UNIVERSITY")));


        // TODO: 在此添加任意绘图代码...


        EndPaint(hWnd, &ps);


        break;


    case
WM_DESTROY:


        PostQuitMessage(0);


        break;


    default:


        return
DefWindowProc(hWnd, message, wParam, lParam);


    }


    return 0;


}


 

// "开始"对话框的消息处理程序。


INT_PTR
CALLBACK About(HWND
hDlg, UINT
message, WPARAM
wParam, LPARAM
lParam)


{


    UNREFERENCED_PARAMETER(lParam);


    switch (message)


    {


    case
WM_INITDIALOG:


        return (INT_PTR)TRUE;


 

    case
WM_COMMAND:


        if (LOWORD(wParam) == IDCANCEL)


        {


            EndDialog(hDlg, LOWORD(wParam));


            return (INT_PTR)TRUE;


        }


        if (LOWORD(wParam) == IDPAUSE)


        {


            treatwith=GetDlgItemInt(hDlg,IDC_EDIT2,NULL,TRUE);


            EndDialog(hDlg, LOWORD(wParam));


            return (INT_PTR)TRUE;


        }


        if (LOWORD(wParam) == IDRESET)


        {


            treatwith=GetDlgItemInt(hDlg,IDC_EDIT2,NULL,TRUE);


            EndDialog(hDlg, LOWORD(wParam));


            return (INT_PTR)TRUE;


        }


        if (LOWORD(wParam) == IDSTART)


        {


            threadNum=GetDlgItemInt(hDlg,IDC_EDIT1,NULL,TRUE);


            EndDialog(hDlg, LOWORD(wParam));


            return (INT_PTR)TRUE;


        }


        break;


    }


    return (INT_PTR)FALSE;


}


4.编写多线程创建函数，创建多个线程，编写动画绘图函数绘制图形，每个线程都调用绘图函数，在用户区中绘制动画，以直观表现线程的运行。具体代码如下：

//线程创建


void CreateThreadStart(HWND
hWnd)


{


    bool SecurityDescriptorSuc=true;


    threadStruct *pthreadparam;


    UINT threadXuHao=0;


    int i=0;


    HANDLE handleRes;


    while(threadXuHao<threadNum)


    {


        pthreadparam=new
threadStruct;//到线程里面去释放


        pthreadparam->hWnd=hWnd;


        pthreadparam->threadXuHao=threadXuHao;


        if(SecurityDescriptorSuc==false)


        {


            //handleRes=CreateThread(&sa,0,PaintThread,


            //    (LPVOID)pthreadparam,0,&ThreadId[threadXuHao]);


            ThreadHandle[threadXuHao]=handleRes;


        }


        else


        {


            handleRes=CreateThread(NULL,0,PaintThread,


                (LPVOID)pthreadparam,0,&ThreadId[threadXuHao]);


            ThreadHandle[threadXuHao]=handleRes;


        }


        threadXuHao++;


    }


}


 

//绘图


DWORD
WINAPI PaintThread(LPVOID
lpParam)


{


    UINT threadXuHao=((threadStruct*)lpParam)->threadXuHao;


    HWND hWnd=((threadStruct*)lpParam)->hWnd;


    delete
lpParam;


 

    HDC hdc=GetDC(hWnd);


    /*UINT currentHigh=wndHighSize-1;*/


    wchar_t str[100];


    swprintf(str,_T("this is the %d thread"),threadXuHao);


    TextOut(hdc, 50 * (threadXuHao + 1) - 40 , 50 * (threadXuHao + 1) - 40 + (threadXuHao + 1) * 5, str, wcslen(str));


    


    /*UINT rectWidth;


    rectWidth=wndWidthSize/threadNum;*/


    //HFONT X=CreateHfont


    /*HPEN logicPen=CreatePen(PS_SOLID,3,logicColor[threadXuHao]);*/


    HPEN logicPen = CreatePen(PS_SOLID, 3, RGB(50 * threadXuHao - 80, 20 * threadXuHao, 10*threadXuHao+150));


    HPEN oldPenObj;


    RECT rc;


    GetClientRect(hWnd, &rc);


    int n = 0;


    int x=0;


    int y = 0;


    while (x<wndWidthSize)


    {


        x = 50 * (threadXuHao + 1) -40+150;


        y = 50 * (threadXuHao+1)-40;


            /*if (y > wndHighSize)


                y -= wndHighSize;*/


        int m = 10*(threadXuHao+1);


        


        //MoveToEx(hdc,rectWidth*threadXuHao,currentHigh,NULL);


        oldPenObj=(HPEN)SelectObject(hdc,(HGDIOBJ)logicPen);


        //LineTo(hdc,(rectWidth-30)*(threadXuHao+1),currentHigh);


        Ellipse(hdc, x+n ,y, x + m+n , y+m);


        SelectObject(hdc,(HGDIOBJ)oldPenObj);


        //currentHigh=currentHigh-3;


        n += (threadXuHao + 1) * 5;


        Sleep((threadXuHao+1)*200);


    }


    ReleaseDC(hWnd,hdc);


    return 1;


}


 

五. 实验结果


程序运行结果如下：



其中，进程3被暂停。