Thread doesn't suspend!!!

Hi everybody!
I am trying to suspend and resume a thread using two 'Menu' buttons 'Start' & 'Stop'. I have created the thread as below

CWinThread *PWinThread;

OnCreate()
{
int Code = 1;
PWinThread = AfxBeginThread(ThreadFunction, &Code);
}

OnStart()
{
PWinThread->ResumeThread();
}

OnStop()
{
DWORD ExitCode;

PWinThread->SuspendThread();

::GetExitCodeThread(PWinThread->m_hThread, &ExitCode);
if(ExitCode == STILL_ACTIVE)
::MessageBox(0,"Thread","Is still Running",0);
}

When i click on 'Stop' button, I get the messagebox indicating that thread is still active.........can somebody trace it out please..............

Suspended or not, it's still active until the thread returns from its thread function.

gg

But this nature of a working thread doesn't serve any purpose............actually, in my application a thread is continuously writing data to a .txt file and the main application is reading that data for plotting it on the monitor using a software timer.........now suppose if i want to suspend this whole process then i have to kill the timer for stopping the main application job (which is happening) and anyhow suspend the thread (this is creating problem).............then how can i solve it alternatively............

You don't use SuspendThread() as means for synchronization (as the documentation states). Use a synchronization object instead - like a manual reset Event. The main loop of the thread would then uses a wait-function to proceed only if the Event is in a signaled state.
http://msdn.microsoft.com/en-us/libr...53(VS.85).aspx

gg