多线程编程示例含源代码

多线程编程示例：具体内容：创建3个线程分别以不同的速率计数，每满100画一个椭圆效果：步骤：visual stdio2010中创建一个win32控制台程序ThreadDomo-取消窗口的最大化按钮-在WM_CREATE消息中创建edit框，static框和3个线程-菜单中添加“暂停”与“启动”-添加相应的“暂停”“启动”消息-添加线程的回调函数进行计算与绘图代码：将原来的ThreadDamo1.cpp的代码都清除/ ThreadDamo1.cpp : 定义应用程序的入口点。/#include stdafx.h#include ThreadDamo1.h#define MAX_LOADSTRING 100HWND ThrhWnd1=NULL;/#线程1的编辑框句柄HWND ThrhWnd2=NULL;HWND ThrhWnd3=NULL;HANDLE ThrHandle1=NULL;/#线程1的线程句柄HANDLE ThrHandle2=NULL;HANDLE ThrHandle3=NULL;int thrCoins1=0;/#线程1的硬币数int thrCoins2=0;int thrCoins3=0;/#DWORD WINAPI ThreadProc1(LPVOID lpParameter);DWORD WINAPI ThreadProc2(LPVOID lpParameter);DWORD WINAPI ThreadProc3(LPVOID lpParameter);/*void DrawCoins(int x,int y,int thrCoins,int);*/?/ 全局变量:HWND hWnd;HMENU hMenu;/#HINSTANCE hInst;/ 当前实例TCHAR szTitleMAX_LOADSTRING;/ 标题栏文本TCHAR szWindowClassMAX_LOADSTRING;/ 主窗口类名/ 此代码模块中包含的函数的前向声明:ATOMMyRegisterClass(HINSTANCE hInstance); /#用于注册窗口类，注册类后才能调用createwindows函数创建窗口BOOLInitInstance(HINSTANCE, int);/#createwindows函数在initinstance函数中调用LRESULT CALLBACKWndProc(HWND, UINT, WPARAM, LPARAM);INT_PTR CALLBACKAbout(HWND, UINT, WPARAM, LPARAM);/#这几个函数都是被winmain函数调用的，winmain函数代表的是gui主线程的入口函数int APIENTRY _tWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow)UNREFERENCED_PARAMETER(hPrevInstance);UNREFERENCED_PARAMETER(lpCmdLine); / TODO: 在此放置代码。MSG msg;HACCEL hAccelTable;/ 初始化全局字符串LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);LoadString(hInstance, IDC_THREADDAMO1, szWindowClass, MAX_LOADSTRING);MyRegisterClass(hInstance);/ 执行应用程序初始化:if (!InitInstance (hInstance, nCmdShow)return FALSE;hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_THREADDAMO1);/ 主消息循环:while (GetMessage(&msg, NULL, 0, 0)if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg)TranslateMessage(&msg);DispatchMessage(&msg);return (int) msg.wParam;/ 函数: MyRegisterClass()/ 目的: 注册窗口类。/ 注释:/ 仅当希望/ 此代码与添加到 Windows 95 中的“RegisterClassEx”/ 函数之前的 Win32 系统兼容时，才需要此函数及其用法。调用此函数十分重要，/ 这样应用程序就可以获得关联的/ “格式正确的”小图标。/ATOM MyRegisterClass(HINSTANCE hInstance)WNDCLASSEX wcex;wcex.cbSize = sizeof(WNDCLASSEX);wcex.style= CS_HREDRAW | CS_VREDRAW;wcex.lpfnWndProc= WndProc;wcex.cbClsExtra= 0;wcex.cbWndExtra= 0;wcex.hInstance= hInstance;wcex.hIcon= LoadIcon(hInstance, MAKEINTRESOURCE(IDI_THREADDAMO1);wcex.hCursor= LoadCursor(NULL, IDC_ARROW);wcex.hbrBackground= (HBRUSH)(CTLCOLOR_BTN+1);/#原本的COLOR_WINDOW改成CTLCOLOR_BTNwcex.lpszMenuName= MAKEINTRESOURCE(IDC_THREADDAMO1);wcex.lpszClassName= szWindowClass;wcex.hIconSm= LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL);return RegisterClassEx(&wcex);/ 函数: InitInstance(HINSTANCE, int)/ 目的: 保存实例句柄并创建主窗口/ 注释:/ 在此函数中，我们在全局变量中保存实例句柄并/ 创建和显示主程序窗口。/BOOL InitInstance(HINSTANCE hInstance, int nCmdShow) hInst = hInstance; / 将实例句柄存储在全局变量中 /#这里正用createwindow函数创建窗口 /#去掉最大化按钮的方法 /*#方法1-原本的WS_OVERLAPPEDWINDOW改成WS_OVERLAPPEDWINDOW&WS_MAXIMIZEBOX取消了“最大化” hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW&WS_MAXIMIZEBOX,CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL); if (!hWnd) return FALSE;*/ /#方法2 hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL); if (!hWnd) return FALSE; LONG lStyle=GetWindowLong(hWnd,GWL_STYLE);/#GetWindowLong是一个Windows API函数，获得指定窗口的有关信息，也获得在额外窗口内存中指定偏移位地址的32位度整型值。 lStyle &=WS_MAXIMIZEBOX; SetWindowLong(hWnd,GWL_STYLE,lStyle);/#设置窗口的风格 ShowWindow(hWnd, nCmdShow); UpdateWindow(hWnd); return TRUE;/#HWND CreateEditControlForMainWnd(int x,int y,int nWindth,int nHeight,HWND hWndParent,HINSTANCE hInstance)return CreateWindow(_T(EDIT),_T(0),WS_CHILD|WS_VISIBLE,x,y,nWindth,nHeight,hWndParent,NULL,hInstance,NULL);void CreateStaticForMainWnd(LPCTSTR lpWindowName ,int x,int y,int nWidth,int nHeight,HWND hWndParent,HINSTANCE hInstance)CreateWindow(_T(STATIC),lpWindowName,WS_CHILD|WS_VISIBLE,x,y,nWidth,nHeight,hWndParent,NULL,hInstance,NULL);/ 函数: WndProc(HWND, UINT, WPARAM, LPARAM)/ 目的: 处理主窗口的消息。/ WM_COMMAND- 处理应用程序菜单/ WM_PAINT- 绘制主窗口/ WM_DESTROY- 发送退出消息并返回/LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)int wmId, wmEvent;PAINTSTRUCT ps;HDC hdc;switch (message)case WM_CREATE:ThrhWnd1 = CreateEditControlForMainWnd(100,300,100,20,hWnd,hInst);ThrhWnd2 = CreateEditControlForMainWnd(300,300,100,20,hWnd,hInst);ThrhWnd3 = CreateEditControlForMainWnd(500,300,100,20,hWnd,hInst);CreateStaticForMainWnd(_T(线程1),100,270,100,20,hWnd,hInst);CreateStaticForMainWnd(_T(线程2),300,270,100,20,hWnd,hInst);CreateStaticForMainWnd(_T(线程3),500,270,100,20,hWnd,hInst);ThrHandle1 = CreateThread(NULL,0,ThreadProc1,NULL,CREATE_SUSPENDED,NULL);/#创建3个线程ThrHandle2 = CreateThread(NULL,0,ThreadProc2,NULL,CREATE_SUSPENDED,NULL);ThrHandle3 = CreateThread(NULL,0,ThreadProc3,NULL,CREATE_SUSPENDED,NULL);hMenu = GetMenu(hWnd);case WM_COMMAND:wmId = LOWORD(wParam);wmEvent = HIWORD(wParam);/ 分析菜单选择:switch (wmId)case IDM_ABOUT:DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);break;case IDM_EXIT:DestroyWindow(hWnd);break;case IDM_RESUME:/#启动的消息事件 EnableMenuItem(hMenu,IDM_SUSPEN,MF_ENABLED);/#这两个函数语句放在resumethread函数后面比较好理解EnableMenuItem(hMenu,IDM_RESUME,MF_GRAYED);DrawMenuBar(hWnd);ResumeThread(ThrHandle1);ResumeThread(ThrHandle2);ResumeThread(ThrHandle3);break;case IDM_SUSPEN:EnableMenuItem(hMenu,IDM_SUSPEN,MF_GRAYED);EnableMenuItem(hMenu,IDM_RESUME,MF_ENABLED);DrawMenuBar(hWnd);SuspendThread(ThrHandle1);SuspendThread(ThrHandle2);SuspendThread(ThrHandle3);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./ DrawCoins(100,200,thrCoins1,RGB(255,0,0);/ DrawCoins(300,400,thrCoins1,RGB(0,255,0);/ DrawCoins(500,600,thrCoins1,RGB(0,0,255);EndPaint(hWnd, &ps);break;case WM_DESTROY:PostQuitMessage(0);break;default:return DefWindowProc(hWnd, message, wParam, lParam);return 0;/ “关于”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) = IDOK | LOWORD(wParam) = IDCANCEL)EndDialog(hDlg, LOWORD(wParam);return (INT_PTR)TRUE;break;return (INT_PTR)FALSE;DWORD WINAPI ThreadProc1(LPVOID lpParameter)TCHAR szBuf10=0;int index = 0;/获得DCHDC hdc = GetDC(hWnd);/创建一个红色的画刷并选到DC中去HBRUSH hBr = CreateSolidBrush(RGB(255,0,0);HBRUSH h01dBR = static_cast (SelectObject(hdc,hBr);for (int i=0;i1000;i+)wsprintf(szBuf,_T(%d),i+1);SetWindowText(ThrhWnd1,szBuf);if (0=i%100)int y=250-10*index;Ellipse(hdc,100,y,200,y-30);index+;thrCoins1=index;Sleep(50);/把旧的画刷选回去，并删除新的画刷SelectObject(hdc,h01dBR);DeleteObject(hBr);/释放DCReleaseDC(hWnd,hdc);return 0;DWORD WINAPI ThreadProc2(LPVOID lpParameter)TCHAR szBuf10=0;int index = 0;/获得DCHDC hdc = GetDC(hWnd);/创建一个红色的画刷并选到DC中去HBRUSH hBr = CreateSolidBrush(RGB(0,255,0);HBRUSH h01dBR = static_cast (Select