Re: error C3867 and error C2664

From:
"Doug Harrison [MVP]" <dsh@mvps.org>
Newsgroups:
microsoft.public.vc.mfc
Date:
Tue, 12 Jun 2007 12:42:57 -0500
Message-ID:
<cimt63t8rp4qjtmm3rvirb6pobeejqmtqv@4ax.com>
On Tue, 12 Jun 2007 16:44:00 -0000, bondwiththebest2007@gmail.com wrote:

Hello,

When I am trying to use _beginthreadex in MFC I am getting these
errors. Can anyone kindly help me regarding this. My code is as shown
below
bool CBlueFoxDlg::start(void)
{

    if(!pDev)
        return false ;
   stopRequest=false;
  hThread=(HANDLE)_beginthreadex(0,0,&CBlueFoxDlg::CaptureThread,
(LPVOID)this,0,&dwThreadID);
   running =true;
    return true;
}
unsigned int _stdcall CaptureThread(void* pData)
{
    pThread=(Device*)pData;
    if(!pThread)
        return 1;
    unsigned int cnt=0;

}

I am getting error C3867 when I am writing the third parameter in
_beginthreadex as
CBlueFoxDlg::CaptureThread.
error C3867: It is saying that I need to place '&' before
CBlueFoxDlg::CaptureThread

when I had placed the '&' before I am getting the error C2664:
error C2664: '_beginthredex': cannot convert parameter 3 from unsigned
int(_stdcall CBlueFoxDlg::*)(void*) to unsigned int (_stdcall *)
(void*).

Please kindly help me regarding this.


Two things:

1. An MFC program should use AfxBeginThread instead of _beginthreadex. See
this page for some advice on using it correctly:

http://members.cox.net/doug_web/threads.htm

2. Your thread function must be a static member function or global
function. You can pass the "this" pointer as the thread parameter, and the
thread function can cast it to the proper type and call a non-static member
function through it.

--
Doug Harrison
Visual C++ MVP

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