vc PostThreadMessage

// TestThreadDlg.cpp : implementation file // #include "stdafx.h" #include "TestThread.h" #include "TestThreadDlg.h" #include <map> #include <vector> using namespace std; #ifdef _DEBUG #define new DEBUG_NEW #endif // CAboutDlg dialog used for App About class CAboutDlg : public CDialog { public: CAboutDlg(); // Dialog Data enum { IDD = IDD_ABOUTBOX }; protected: virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support // Implementation protected: DECLARE_MESSAGE_MAP() }; CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) { } void CAboutDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); } BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) END_MESSAGE_MAP() // CTestThreadDlg dialog CTestThreadDlg::CTestThreadDlg(CWnd* pParent /*=NULL*/) : CDialog(CTestThreadDlg::IDD, pParent) { m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); } void CTestThreadDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); DDX_Control(pDX, IDC_STATIC_CAPTION, m_stCaption); } BEGIN_MESSAGE_MAP(CTestThreadDlg, CDialog) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() //}}AFX_MSG_MAP ON_BN_CLICKED(IDC_BUTTON_CREATETHREAD, &CTestThreadDlg::OnBnClickedButtonCreatethread) ON_BN_CLICKED(IDC_BUTTON_THREAD_HELLO, &CTestThreadDlg::OnBnClickedButtonThreadHello) ON_BN_CLICKED(IDC_BUTTON_QUITTHREAD, &CTestThreadDlg::OnBnClickedButtonQuitthread) ON_MESSAGE(WM_APP+2,&CTestThreadDlg::OnThreadQuitFunction) END_MESSAGE_MAP() // CTestThreadDlg message handlers BOOL CTestThreadDlg::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) { BOOL bNameValid; CString strAboutMenu; bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX); ASSERT(bNameValid); 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 m_stCaption.SetWindowTextW(L"No Thread Running"); return TRUE; // return TRUE unless you set the focus to a control } void CTestThreadDlg::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 CTestThreadDlg::OnPaint() { if (IsIconic()) { CPaintDC dc(this); // device context for painting SendMessage(WM_ICONERASEBKGND, reinterpret_cast<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 function to obtain the cursor to display while the user drags // the minimized window. HCURSOR CTestThreadDlg::OnQueryDragIcon() { return static_cast<HCURSOR>(m_hIcon); } DWORD threadProc(LPVOID lParam) { MSG msg; while(GetMessage(&msg,0,0,0)) { if(msg.message == WM_APP+1) { MessageBoxA(NULL,"Hello","From Thread",MB_OK); } DispatchMessage(&msg); } MessageBoxA(NULL,"Thread will closed On pressing OK","From Thread",MB_OK); AfxGetApp()->m_pMainWnd->PostMessageW(WM_APP+2,0,0); return 0; } void CTestThreadDlg::OnBnClickedButtonCreatethread() { CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)threadProc,0,0,&m_idThread); CString strTemp; strTemp.Format(L"Thread Started with id#%d",m_idThread); m_stCaption.SetWindowTextW(strTemp); } void CTestThreadDlg::OnBnClickedButtonThreadHello() { PostThreadMessage(m_idThread,WM_APP+1,0,0); } void CTestThreadDlg::OnBnClickedButtonQuitthread() { PostThreadMessage(m_idThread,WM_QUIT,0,0); } LRESULT CTestThreadDlg::OnThreadQuitFunction(WPARAM wParam, LPARAM lParam) { CString strTemp; strTemp.Format(L"Thread Closed with id#%d",m_idThread); m_stCaption.SetWindowTextW(strTemp); return LRESULT(0); }