进程与线程

开发平台：
Visual C++

Multy10Dlg.cpp：源码内容
							// Multy10Dlg.cpp : implementation file
//
#include "stdafx.h"
#include "Multy10.h"
#include "Multy10Dlg.h"
#include "afxmt.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About
CSemaphore semaphoreWrite(2,2); //资源最多访问线程2个，当前可访问线程数2个 
char g_Array[10]; 
UINT WriteA(LPVOID pParam)
{
 CEdit *pEdit=(CEdit*)pParam;
 pEdit->SetWindowText("");
 WaitForSingleObject(semaphoreWrite.m_hObject,INFINITE);
 CString str;
 for(int i=0;i<10;i++)
 {
        pEdit->GetWindowText(str);
  g_Array[i]='A';
  str=str+g_Array[i];
     pEdit->SetWindowText(str);
  Sleep(1000);
 }
 ReleaseSemaphore(semaphoreWrite.m_hObject,1,NULL);
 return 0;
}
UINT WriteB(LPVOID pParam)
{
 CEdit *pEdit=(CEdit*)pParam;
 pEdit->SetWindowText("");
 WaitForSingleObject(semaphoreWrite.m_hObject,INFINITE);
 CString str;
 for(int i=0;i<10;i++)
 {
        pEdit->GetWindowText(str);
  g_Array[i]='B';
  str=str+g_Array[i];
     pEdit->SetWindowText(str);
  Sleep(1000);
 }
 ReleaseSemaphore(semaphoreWrite.m_hObject,1,NULL);
 return 0;
}
UINT WriteC(LPVOID pParam)
{
 CEdit *pEdit=(CEdit*)pParam;
 pEdit->SetWindowText("");
 WaitForSingleObject(semaphoreWrite.m_hObject,INFINITE);
 CString str;
 for(int i=0;i<10;i++)
 {
        pEdit->GetWindowText(str);
  g_Array[i]='C';
  str=str+g_Array[i];
     pEdit->SetWindowText(str);
  Sleep(1000);
 }
 ReleaseSemaphore(semaphoreWrite.m_hObject,1,NULL);
 return 0;
}
class CAboutDlg : public CDialog
{
public:
	CAboutDlg();
// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL
// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CMulty10Dlg dialog
CMulty10Dlg::CMulty10Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMulty10Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMulty10Dlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CMulty10Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMulty10Dlg)
	DDX_Control(pDX, IDC_C, m_ctrlC);
	DDX_Control(pDX, IDC_B, m_ctrlB);
	DDX_Control(pDX, IDC_A, m_ctrlA);
	//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CMulty10Dlg, CDialog)
	//{{AFX_MSG_MAP(CMulty10Dlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_START, OnStart)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CMulty10Dlg message handlers
BOOL CMulty10Dlg::OnInitDialog()
{
	CDialog::OnInitDialog();
	// Add "About..." menu item to system menu.
	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);
	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}
	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}
void CMulty10Dlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}
// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.
void CMulty10Dlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting
		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);
		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;
		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}
// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CMulty10Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}
void CMulty10Dlg::OnStart() 
{
	 	 CWinThread *pWriteC=AfxBeginThread(WriteC,
  &m_ctrlC,
  THREAD_PRIORITY_NORMAL,
  0,
  CREATE_SUSPENDED);
 pWriteC->ResumeThread();
 CWinThread *pWriteA=AfxBeginThread(WriteA,
  &m_ctrlA,
  THREAD_PRIORITY_NORMAL,
  0,
  CREATE_SUSPENDED);
 pWriteA->ResumeThread();
 CWinThread *pWriteB=AfxBeginThread(WriteB,
  &m_ctrlB,
  THREAD_PRIORITY_NORMAL,
  0,
  CREATE_SUSPENDED);
 pWriteB->ResumeThread();	
}

						