C++ OnTimer函数代码示例

void CIOCP_ClientDlg::OnBnClickedStopTest()
{
	UpdateData(TRUE);
	GetDlgItem(IDB_STOP_TEST)->EnableWindow(FALSE);
	
	m_IOCPModel.EndTest();
	ClientDB::GetInstance()->ExecuteSQL(TEXT("COMMIT;"));			// 提交事务
	KillTimer(ID_TIMER_FRESH_INTERVAL);
	OnTimer(ID_TIMER_FRESH_INTERVAL);
	KillTimer(ID_TIMER_PER_SEC);
	OnTimer(ID_TIMER_PER_SEC);
	MessageBox(_T("测试已完成！"),_T("提示"), MB_OK);
	GetDlgItem(IDB_START_TEST)->EnableWindow(TRUE);
}

LRESULT RootWindow::HandleMessage(UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    switch (uMsg) 
    {
        case WM_CREATE:
            return OnCreate();  

        case WM_MOUSEMOVE:
            return OnMouseMove(wParam, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
        
        case WM_NCDESTROY:
            KillTimer(m_hwnd, ANIM_TIMER_ID);
            // Death of the root window ends the thread
            PostQuitMessage(0);
            break;

        case WM_SETFOCUS:
            if (NULL != m_hwndChild)
                SetFocus(m_hwndChild);
            return 0;

        case WM_TIMER:
            OnTimer();
            return 0;

        case WM_KEYDOWN:
            OnKeyDown(wParam, lParam);
            return 0;
    }
    
    return super::HandleMessage(uMsg, wParam, lParam);
}

bool CMixer::Exclusive(bool Enable, const DISPLAY_MODE_INFO *ModeInfo)
{
	if (Enable == m_IsExclusive)
		return(TRUE);	// nothing to do
	bool	retc = FALSE;	// assume failure
	if (Enable) {
		if (GetCurView() == NULL)	// if no view
			return(FALSE);	// exclusive mode is useless
		CString	ErrMsg;
		if (CreateBackBuf(ErrMsg, ModeInfo)) {	// create back buffer
			ApplySettings();
			OnTimer(FRAME_TIMER_ID);	// display first frame
			retc = TRUE;	// success
		} else {	// create back buffer failed
			DestroyBackBuf();
			if (ErrMsg.IsEmpty())	// if specific error message wasn't set
				ErrMsg.LoadString(IDS_CANT_SET_EXCLUSIVE);	// use generic message
			AfxMessageBox(ErrMsg);
		}
	} else {	// disable exclusive
		DestroyBackBuf();
		retc = TRUE;	// success
	}
	theApp.UpdateAllViews(NULL, CFracticeView::UVH_EXCLUSIVE, NULL);
	return(retc);
}

OpenGLOutput::OpenGLOutput()
:QDialog()
{
    ui = new Ui::OpenGLOutputDialog();
    ui->setupUi(this);

    layout = new QGridLayout(ui->previewContainer);
    layout->setMargin(0);

    previewView = new CDeckLinkGLWidget(this);
    previewView->resize(ui->previewContainer->size());
    previewView->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
    layout->addWidget(previewView, 0, 0, 0, 0);
    previewView->DrawFrame(NULL);

    pOpenGLOutput = new BMDOpenGLOutput();

	if (!pOpenGLOutput->InitDeckLink())
		exit(0);
	if (!pOpenGLOutput->InitGUI(previewView))
		exit(0);
	if (!pOpenGLOutput->InitOpenGL())
		exit(0);

	pTimer = new QTimer(this);
	connect(pTimer, SIGNAL(timeout()), this, SLOT(OnTimer()));

	setWindowTitle("OpenGLOutput");
    show();
}

LRESULT WINAPI WndProc( HWND hWnd, UINT nMsg,
                        WPARAM wParam, LPARAM lParam )
{
    switch( nMsg )
    {
    case WM_PAINT:
        OnPaint( hWnd );
        break;
    case WM_TIMER:
        OnTimer( hWnd, wParam );
        break;
    case WM_CREATE:
    {
        SetTimer( hWnd, 1, 10, NULL );
//			SetTimer( hWnd, 2, 2000, TimerProc );
        //最后一个参数是否为NULL,将影响 这个定时器
        //触发WM_TIMER消息，找谁处理。
    }
    break;
    case WM_DESTROY:
        PostQuitMessage( 0 );
        break;
    }
    return DefWindowProc( hWnd, nMsg, wParam, lParam );
}

	void CFadeButtonUI::DoEvent(TEventUI& event)
	{
		if( event.Type == UIEVENT_MOUSEENTER && !IsAnimationRunning( FADE_IN_ID ) )
		{
			m_bFadeAlpha = 0;
			m_bMouseHove = TRUE;
			StopAnimation( FADE_OUT_ID );
			StartAnimation( FADE_ELLAPSE, FADE_FRAME_COUNT, FADE_IN_ID );
			Invalidate();
			return;
		}
		if( event.Type == UIEVENT_MOUSELEAVE && !IsAnimationRunning( FADE_OUT_ID ) )
		{
			m_bFadeAlpha = 0;
			m_bMouseLeave = TRUE;
			StopAnimation(FADE_IN_ID);
			StartAnimation(FADE_ELLAPSE, FADE_FRAME_COUNT, FADE_OUT_ID);
			Invalidate();
			return;
		}
		if( event.Type == UIEVENT_TIMER ) 
		{
			OnTimer(  event.wParam );
		}
		CButtonUI::DoEvent( event );
	}

Cron::Cron() {
	LogInfo("Cron Started...");
	// Conmpute next slot
	int now = QDateTime::currentDateTime().toTime_t();
	QTimer::singleShot(1000 * (60 - (now%60)), this, SLOT(OnTimer()));
	lastGivenID = 0;
}

void CSnakeView::OnStart()
{
	// TODO: 在此添加命令处理程序代码
	gameStart = 1;
	Initialize();
	OnTimer(1);
}

int CMainFrame::MsgProc(UINT uMsg, WPARAM wParam, LPARAM lParam)
{
  switch (uMsg)
  {
    case WM_COMMAND:
      OnCommand(wParam, lParam);
      break;
    case WM_CREATE:
      OnCreate(wParam, lParam);
      break;
    case WM_DESTROY:
      OnDestroy(wParam, lParam);
      break;
    case WM_SIZE:
      OnSize(wParam, lParam);
      return 1;
    case WM_TIMER:
      OnTimer(wParam, lParam);
      return 1;
    case WM_ERASEBKGND:
      return 0;
  }

  return DefFrameProc(m_hWnd, m_hClient, uMsg, wParam, lParam);
}

LRESULT CTrayIconHooker::WindowProc(UINT nMsg, WPARAM wParam, LPARAM lParam)
{
  ASSERT(m_pTrayIcon);
  LRESULT lResult = 0;

  if (nMsg == wm_TaskbarCreated)
    lResult = OnTaskbarCreated(wParam, lParam);
  else
  {
    switch (nMsg)
    {
      case WM_TIMER: 
      {
        if (wParam == m_pTrayIcon->m_NotifyIconData.uID)  //It's our timer
          OnTimer(wParam); 
        else
          lResult = Default();
        break;
      }
      default: 
      {
        lResult = Default(); 
        break;
      }
    }
  }

  return lResult;
}

LRESULT WINAPI ScreenSaverProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	switch (message)
	{
	case WM_CREATE:
		InitSaver(hWnd);
		break;

	case WM_TIMER:
		OnTimer(hWnd, (UINT)wParam);
		break;

	case WM_DESTROY:
		KillTimer(hWnd, IDT_TIMER);
		PostQuitMessage(0);
		return 0;

	case WM_KEYDOWN:
#ifdef DEBUG_MODE // in debug mode, user can exit program by press "ESC"
		if(VK_ESCAPE == wParam)
			PostQuitMessage(0);
#endif
		if(IsMagicKey((char)wParam))
			return 0;
		break;
	}

#ifndef DEBUG_MODE
	return DefScreenSaverProc(hWnd, message, wParam, lParam);
#else
	return DefWindowProc(hWnd, message, wParam, lParam);
#endif
}

void CComboBoxExt::OnCbnSelendCandel()
{
	CClientDC dc(this);
	m_bPress=FALSE;
	dc.DeleteDC();
	OnTimer(1001);
}

void App::OnKeyboard(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) {
	switch (message) {
		case WM_KEYUP:

		break;

		case WM_KEYDOWN:

		break;

		case WM_CHAR: {
			switch (wParam) {
				case 'k':
					KillHalf(hwnd);
				break;

				case 'x':
					PostQuitMessage(0);
				break;

				// Temporary thing to fasten the program
				case ' ':
					OnTimer(hwnd);
				break;
			}
		}
		break;

		default:

		break;
	}
}

int main(int argc,char ** argv)
{
    // start GL context and O/S window using the GLFW helper library
    appDelegate.AppWillStart();
    FPS_Helper fpsHelper;
    fpsHelper.SetFixedFPS(30);
    InitOpenGL();

    appDelegate.AppDidStart();

    while (!glfwWindowShouldClose (mainWnd.window))
    {
        // wipe the drawing surface clear
        static double timer_last = 0;
        double curr_time = glfwGetTime();
        if(curr_time - timer_last > 0.2)
        {
            timer_last = timer_last + 0.02;
            OnTimer();
        }

        if(fpsHelper.Tick())
        {
            OnRender();
            // update other events like input handling
            glfwPollEvents ();
            // put the stuff we've been drawing onto the display
            glfwSwapBuffers (mainWnd.window);
        }
    }
    // close GL context and any other GLFW resources
    appDelegate.AppWillTerminate();
    glfwTerminate();
    return 0;
}

void CEditLog::AddText( 
		LPCWSTR pwszAdd,
		bool bLFtoCRLF	// = false
		)
{
	if( pwszAdd ) {
		::EnterCriticalSection( &m_csLock );
		if( bLFtoCRLF ) {
			// Add text to our buffer, but convert each LF to a CRLF pair
			int cchAdd = ::wcslen( pwszAdd );
			// Ensure no buffer enlargement operations are necessary 			
			m_wsStore.reserve( m_wsStore.length() + cchAdd * 2 );
			for( int i = 0; i < cchAdd; ++i ) {
				if( pwszAdd[ i ] == L'\n' )
					m_wsStore += L'\r';
				m_wsStore += pwszAdd[ i ];
			}
		}
		else
			// Simly add text
			m_wsStore += pwszAdd;

		// If the log is filled really fast or the UI thread is doing something
		// else, the WM_ADDTEXT messages may not get processed for a long period.
		// To avoid floating the UI threads message queue, we post only one message.
		if( !m_bMessagePending && GetHandle() != NULL ) {
			::PostMessage( GetHandle(), WM_ADDTEXT, 0, 0 );
			m_bMessagePending = true;
		}
		::LeaveCriticalSection( &m_csLock );
	}

	OnTimer(0);

}