Re: WM_TIMER remaining/elapsed time...

From:

Hector Santos <sant9442@nospam.gmail.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Thu, 29 Apr 2010 07:30:00 -0400

Message-ID:

<ucKeP945KHA.3880@TK2MSFTNGP04.phx.gbl>

Simon wrote:

Hi,

I am fairly sure there isn't a straight forward way to do it but I
thought I'd ask more knowledgeable people here first.

let say I create a timer for 10 minutes.

::SetTimer( m_hWnd, TIMER_IDENT, 600000, NULL ); // WM_TIMER sent to
CWnd queue

Is it possible to 'pause' the timer or at know how many ms are left
before the WM_TIMER event is fired?

Many thanks

Simon

No, but what you can do is have a 1 second or 1 minute timer and
create a counter variables associated with the TIMER_IDENT.

Maybe with a Start Button:

void MyDialog::OnStartButtonClick()
{
   m_TimerIdentCount = 10; // 10 mins countdown
   m_PauseButton = FALSE;
   SetTimer(TIMER_INDENT, 10000, NULL); // 1 min timer
}

then OnTimer has:

void MyDialog::OnTimer(UINT nIdEvent)
{
    if (nIdEvent == TIMER_INDENT) {
       if (!m_PauseButton) {
            m_TimerIdentCount--; // remove 1 minute
            if (m_TimerIdentCount <= 0) {
                RING_BUZZER()
           KillTimer(TIMER_INDENT);
            }
       }
    }
}

Something like that.

--
HLS