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Trouble with AfxBeginThread()

Posted on 2000-03-11
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Last Modified: 2013-11-20
I am trying to use a worker thread on occasion in my app, that would perform a little simple task that I'd like to run concurrently.  I don't see any real synchronization problems, so it would seem to be an ideal function to thread.  However, I cannot get AfxBeginThread() to properly execute.  In the documentation, there is the following example:

******************************
UINT MyThreadProc( LPVOID pParam ) {
    CMyObject* pObject = (CMyObject*)pParam;
    if (pObject == NULL || !pObject->IsKindOf(RUNTIME_CLASS(CMyObject)))
    return -1;    // illegal parameter    // do something with 'pObject'
    return 0;    // thread completed successfully}

// inside a different function in the program...pNewObject = new CMyObject;
AfxBeginThread(MyThreadProc, pNewObject);
************************************

This all seems pretty straightforward.  However, it does not work.  There is one difference- I need to use this within a class.  So MyThreadProc, in my example, would be MyClass::MyThreadProc.  I'm not sure if this is the reason it doesn't run (I get message "neither of the 2 overloads can convert parameter 1 from UINT VOID *")

Does anyone know how to actually do this properly?  And how to run it from within a class?

Thanks.

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Question by:Mournblade
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6 Comments
 
LVL 1

Accepted Solution

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nutsnuts earned 225 total points
ID: 2607378
Usually, we use a global function as the worker thread fucntion. Anyway, if you want to  run it from within a class, you can just use a STATIC member function. And I think it's the only way, Because AfxBeginThread need a global function pointer.
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LVL 5

Expert Comment

by:Wyn
ID: 2607635
or friend.
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Author Comment

by:Mournblade
ID: 2608895
Thanks.
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Author Comment

by:Mournblade
ID: 2608899
Hey, nutsnuts- let me know if you got the 75 pts.  I thought that's what I posted, but the top of this page now says 7.  ??
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LVL 5

Expert Comment

by:Wyn
ID: 2608917
Mournblade,the 7 is the cost other people should pay to read a valued question ,10% of original points.And nutnuts got depends on the grade you give,if it's "A",nutnuts got 4*points,'B' ,3*points....
Points here equal 75.

Regards
W.Yinan
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LVL 1

Expert Comment

by:nutsnuts
ID: 2608969
Mournblade, Thanks. I've got 225 points and a grade of "B".

Regards
nutsnuts
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