C / C++ / MFC

chetan210183 wrote:

The Problem now i am facing is, when the file gets full, i am trying to display error message and stop the timer. But Timer is not getting stopped by KillTimer().Timer continues in the running state.

chetan210183 wrote:

void CMyDlg::OnClickStart()
{
fp = fopen(file_name,"a");
if (NULL == fp)
{
MessageBox ("Error Writing File",NULL, MB_OK|MB_ICONSTOP);
KillTimer(m_nTimer);
}
m_nTimer = SetTimer(1, 100, NULL);
fprintf(fp,"%d\n",status);
}

chetan210183 wrote:

void CMyDlg::OnTimer(UINT nIDEvent)
{
OnClickStart();
CDialog::OnTimer(nIDEvent);
}

void CMyDlg::OnClickStart() 
{
   //set the timer here. Nothing else!
   m_nTimer = SetTimer(1, 100, NULL);
}

void CMyDlg::OnTimer(UINT nIDEvent) 
{
   //write your timer related code here. Not anywhere else!
   fp = fopen(file_name,"a");
   if (NULL == fp)
   {
       MessageBox ("Error Writing File",NULL, MB_OK|MB_ICONSTOP);
       KillTimer(m_nTimer);
   }
}

chetan210183 wrote:

"The WM_TIMER message is a low-priority message. The GetMessage and PeekMessage functions post this message only when no other higher-priority messages are in the thread's message queue. "

chetan210183 wrote:

So instead of Timers , can i use threads and loop the function?

I mean replacing the Timers with Threads.

chetan210183 wrote:

Can u please suggest links where i can get sample programs on Threads replacing the Timers.

Please......

void CMyDlg::OnClickStart()
{
fp = fopen(file_name,"a");
if (NULL == fp)
{
MessageBox ("Error Writing File",NULL, MB_OK|MB_ICONSTOP);
KillTimer(m_nTimer);
}
m_nTimer = SetTimer(1, 100, NULL);
fprintf(fp,"%d\n",status);
}

KillTimer(1);

A_Laxman wrote:

for killing timer use

KillTimer(1);

i.e what ID you provided to set the timer

The Timer returns the timer id when hwnd parameter of the settimer is NULL