C / C++ / MFC

void CMainFrame::CreateWorkerThread(void)
// Created 25FEB2011
{


	HWND hWnd = GetSafeHwnd();
	if (hWnd == NULL)
	{
		TRACE0("Window pointer is invalid!");
	}
	

	hWnd = GetSafeHwnd();	//hWnd has been made a 'public' member

	pThread1 = AfxBeginThread(mcProc, static_cast<LPVOID>(&hWnd), THREAD_PRIORITY_NORMAL, 0, CREATE_SUSPENDED);	
	pThread1 ->ResumeThread(); 

	DWORD ThreadExitCodeValue = 0;
	LPDWORD pDWord = NULL;
	pDWord = &ThreadExitCodeValue;

	//Need a handle for the thread:
	HANDLE pThreadHandle = pThread1->m_hThread;


	::WaitForSingleObject(pThreadHandle,INFINITE); //stops this 'thread' until worker thread exits.


}


BEGIN_MESSAGE_MAP(CMainFrame, CFrameWndEx)
	ON_WM_CREATE()

	ON_MESSAGE(WM_THREAD1MSG, Respond2ThreadMsg)  //#define WM_THREAD1MSG WM_APP + 0x10 <- this line included in stdafx.h

	ON_COMMAND(ID_VIEW_CUSTOMIZE, &CMainFrame::OnViewCustomize)
	ON_REGISTERED_MESSAGE(AFX_WM_CREATETOOLBAR, &CMainFrame::OnToolbarCreateNew)
	ON_COMMAND_RANGE(ID_VIEW_APPLOOK_WIN_2000, ID_VIEW_APPLOOK_WINDOWS_7, &CMainFrame::OnApplicationLook)
	ON_UPDATE_COMMAND_UI_RANGE(ID_VIEW_APPLOOK_WIN_2000, ID_VIEW_APPLOOK_WINDOWS_7, &CMainFrame::OnUpdateApplicationLook)

	ON_COMMAND(ID_GCCODEDVMT_TESTCOMMAND, TestCommand)		//GC added 23FEB2011
	ON_COMMAND(ID_GCCODEDVMT_CREATEWORKERTHREAD, CreateWorkerThread)	//GC Added 25FEB2011
	ON_COMMAND(ID_GCCODEDVMT_TERMINATEWORKERTHREAD, TerminateWorkerThread)	//GC added 28FEB2011
	


	ON_WM_SETTINGCHANGE()
END_MESSAGE_MAP()


UINT mcProc(LPVOID param)
// Last edited 2MAR2011
{
	//This is the worker thread function...
	CString TempString;
	CString TempString2;
	int i = 0;
	int y = 0;

	HWND *pHandle = static_cast<HWND*>(param);	//for benefit of sending windows message from thread
	//static_cast works in the same way asordianry casting but considered to be restrictive(safer) and 'noticeable'...


	for (i=0; i<10; i++)
	{
		TempString.Format(_T("index counter: %d, \n"), i); 
		TempString2 = _T("Thread 1 Started... ");
		TempString2 += TempString;

		TRACE(TempString2);
		::Sleep(1000);
		
	}


	
	
	//send message from this thread...

	y = ::PostMessage(*pHandle, WM_THREAD1MSG, 0, 0);
	

	Sleep(1000);
	
	return 0;
}


LRESULT CMainFrame::Respond2ThreadMsg(WPARAM xParam, LPARAM lParam)
// Created 25FEB2011
{
	AfxMessageBox(_T("Thread message received"));
	TRACE(_T("Thread message received /n"));
	return 0;
}

    SYSTEMTIME t,t2,t3;

    GetSystemTime(&t);  //gets current time on button click
    GetSystemTime(&t2);  //gets current time on second button click after some time

    //Get the difference between two times
    t3.wHour = t2.wHour - t.wHour;
    t3.wMinute = t2.wMinute - t.wMinute;
t3.wSecond = t2.wSecond - t.wSecond;

    //function to store time in SqlServer Database, inwhich I do some concatination and store time in DB
    //omitting those to keep things simple
GetMyDateTime2(t,t2,t3);

2	3/3/2011 21:57:57	3/3/2011 21:58:3	0:1:65482(duration)	D:\Recordings\SecondRec.wav