MFC信号量使用指南

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DEMO程序： TestSemaphore_DEMO.rar

源代码： TestSemaphore_SRC.rar

---关键代码如下---

void CTestSemaphoreDlg::OnBnClickedButtonThread1(){    // TODO: 在此添加控件通知处理程序代码    AfxBeginThread((AFX_THREADPROC)thread1WriteA, this);}void CTestSemaphoreDlg::OnBnClickedButtonThread2(){    // TODO: 在此添加控件通知处理程序代码    AfxBeginThread((AFX_THREADPROC)thread2WriteB, this);}void CTestSemaphoreDlg::OnBnClickedButtonThread3(){    // TODO: 在此添加控件通知处理程序代码    AfxBeginThread((AFX_THREADPROC)thread3WriteC, this);}UINT CTestSemaphoreDlg::thread1WriteA( LPVOID pParam ){    CTestSemaphoreDlg* pThis = (CTestSemaphoreDlg*)pParam;    pThis->WriteA();    return 0;}void CTestSemaphoreDlg::WriteA(){    CString str;    g_semaphore.Lock();    for (int i=0; i<5; i++)    {        Sleep(500);        m_editDisp.GetWindowText(str);        str += "A";        m_editDisp.SetWindowText(str);            }    g_semaphore.Unlock();}UINT CTestSemaphoreDlg::thread2WriteB( LPVOID pParam ){    CTestSemaphoreDlg* pThis = (CTestSemaphoreDlg*)pParam;    pThis->WriteB();    return 0;}void CTestSemaphoreDlg::WriteB(){    CString str;    g_semaphore.Lock();    for (int i=0; i<5; i++)    {        Sleep(500);        m_editDisp.GetWindowText(str);        str += "B";        m_editDisp.SetWindowText(str);            }    g_semaphore.Unlock();}UINT CTestSemaphoreDlg::thread3WriteC( LPVOID pParam ){    CTestSemaphoreDlg* pThis = (CTestSemaphoreDlg*)pParam;    pThis->WriteC();    return 0;}void CTestSemaphoreDlg::WriteC(){    CString str;    g_semaphore.Lock();    for (int i=0; i<5; i++)    {        Sleep(500);        m_editDisp.GetWindowText(str);        str += "C";        m_editDisp.SetWindowText(str);            }    g_semaphore.Unlock();}

通过本教程可以迅速学会使用MFC中信号量的运用！

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