Re: Threads

From:

"Alex Blekhman" <tkfx.REMOVE@yahoo.com>

Newsgroups:

microsoft.public.vc.language

Date:

Wed, 3 Oct 2007 18:30:52 +0200

Message-ID:

<#fn91qdBIHA.4956@TK2MSFTNGP06.phx.gbl>

"Lamefif" wrote:

hi,

case WM_CREATE: //CREATE WINDOW EVENT
SetTimer(hwnd, TimerID, 300, NULL);
Thread1 = CreateThread(NULL,0,Thread1EventProc,NULL,
0,&mThreadId); // mThreadId set to 1212
break;

----------------------

//thread callback function
unsigned long __stdcall Thread1EventProc(LPVOID param)
{
Sleep(100);
//int i;
i++; // global variable
return 0;
}

//-------------------

case WM_TIMER:
switch (wParam)
{
case TimerID:
{

OpenThread(THREAD_ALL_ACCESS,false,mThreadId);
return 0;
}
here is my attempt to rerun the thread, but is not working
mThreadId
has the value 3492 here for some reason,
the program just keeps getting the timer message and
Thread1EventProc
is not called.

You cannot "rerun" the thread. Once thread completed an
execution of its code (`Thread1EventProc' function in your
case), then it ceases to exist. In your `WM_TIMER' handler
you try to open some other thread, which may or may not
exist at this time.

If `mThreadId' has different value, then it's a bug in your
program. Ensure that `WM_CREATE' case executed only once and
that `mThreadId' is preserved until timer message.

Alex