Re: Thread and Timer

From:
"AliR \(VC++ MVP\)" <AliR@online.nospam>
Newsgroups:
microsoft.public.vc.mfc
Date:
Wed, 12 Mar 2008 15:50:39 GMT
Message-ID:
<jZSBj.17321$Ch6.16618@newssvr11.news.prodigy.net>
See below.

"Joseph M. Newcomer" <newcomer@flounder.com> wrote in message
news:kttft3pdk1qm9t9bg9repu1nk41dhkrokv@4ax.com...

BEGIN_MESSAGE_MAP(CWatchDog, CWinThread)
//{{AFX_MSG_MAP(CWatchDog)
// NOTE - the ClassWizard will add and remove mapping macros here.

//}}AFX_MSG_MAP

ON_THREAD_MESSAGE(WM_TIMER, OnTimer)

****
Why not do something very simple: ON_WM_TIMER()?

You have added tons of complexity to what is a trivial problem.
****

END_MESSAGE_MAP()


Becuase ON_WM_TIMER will try to map to a function void (__thiscall
CWnd::*)(UINT_PTR)
That is definitely not going to work on a CWinThread

/////////////////////////////////////////////////////////////////////////////
// CWatchDog message handlers

void CWatchDog::Monitor(CString sFileName, HWND hWnd, UINT iMessage,
int iFrequency, int iTimeout)
{
//g_iTimer = ::SetTimer(NULL, NULL, iFrequency, (TIMERPROC)
OnTimerProc);

g_iTimer = SetTimer(NULL, 0, iFrequency, NULL);
g_hWnd = hWnd;
g_iMessage = iMessage;

****
Why not
SetTimer(iFrequency, NULL);
which is so much simpler?
****


Because CWinThread does not have a SetTimer method, he has to use the API.

AliR.

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