【VC开源代码栏目提醒】:网学会员鉴于大家对VC开源代码十分关注,论文会员在此为大家搜集整理了“CriticalSectionDlg.cpp”一文,供大家参考学习
// CriticalSectionDlg.cpp : implementation file
//
#include "stdafx.h"
#include "CriticalSection.h"
#include "CriticalSectionDlg.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
CCriticalSection critical_section;
char Array[10];
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()
/////////////////////////////////////////////////////////////////////////////
// CCriticalSectionDlg dialog
CCriticalSectionDlg::CCriticalSectionDlg(CWnd* pParent /*=NULL*/)
: CDialog(CCriticalSectionDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CCriticalSectionDlg)
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CCriticalSectionDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CCriticalSectionDlg)
DDX_Control(pDX, IDC_SHOWBACK, m_back);
DDX_Control(pDX, IDC_SHOWFRONT, m_front);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CCriticalSectionDlg, CDialog)
//{{AFX_MSG_MAP(CCriticalSectionDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_FRONT, OnFront)
ON_BN_CLICKED(IDC_BACK, OnBack)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CCriticalSectionDlg message handlers
BOOL CCriticalSectionDlg::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
for(int i=0;i<10;i++)
{
Array[i]='0';
}
return TRUE; // return TRUE unless you set the focus to a control
}
void CCriticalSectionDlg::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 CCriticalSectionDlg::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 CCriticalSectionDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
UINT ShowFront(LPVOID pParam)
{
CEdit *pEdit=(CEdit*)pParam;
pEdit->SetWindowText("");
critical_section.Lock();
//锁定临界区,其它线程遇到critical_section.Lock();语句时要等待
//直至执行critical_section.Unlock();语句
for(int i=0;i<10;i++)
{
itoa(i,&Array[i],10);
pEdit->SetWindowText(Array);
Sleep(1000);
}
critical_section.Unlock();
return 0;
}
UINT ShowBack(LPVOID pParam)
{
CEdit *pEdit=(CEdit*)pParam;
pEdit->SetWindowText("");
critical_section.Lock();
//锁定临界区,其它线程遇到critical_section.Lock();语句时要等待
//直至执行critical_section.Unlock();语句
for(int i=0;i<10;i++)
{
itoa(9-i,&Array[i],10);
pEdit->SetWindowText(Array);
Sleep(1000);
}
critical_section.Unlock();
return 0;
}
void CCriticalSectionDlg::OnFront()
{
// TODO: Add your control notification handler code here
CWinThread *pFront=AfxBeginThread(ShowFront,
&m_front,
THREAD_PRIORITY_NORMAL,
0,
CREATE_SUSPENDED);
pFront->ResumeThread();
}
void CCriticalSectionDlg::OnBack()
{
// TODO: Add your control notification handler code here
CWinThread *pBack=AfxBeginThread(ShowBack,
&m_back,
THREAD_PRIORITY_NORMAL,
0,
CREATE_SUSPENDED);
pBack->ResumeThread();
}
上一篇:
CriticalSection.cpp
下一篇:
ASP小区停车管理系统(Access)(含录像)