Re: multi-thread problem

From:
"Jeff Partch" <jeffp@mvps.org>
Newsgroups:
microsoft.public.vc.mfc
Date:
Wed, 14 Jun 2006 21:54:07 -0500
Message-ID:
<#RLr6bCkGHA.3496@TK2MSFTNGP02.phx.gbl>
"cdg" <anyone@anywhere.com> wrote in message
news:rE3kg.235123$5Z.45689@dukeread02...

 I'm still having problems with this simple worker thread program. And I'm
still not sure how to write the cast for controller function. Could you
correctly write any incorrect statements. And also, I had another
question.
I have found that there must be some procedure to correctly place the
message receiving function into the program. Is it placed with the wizard
or
manually and static, public or private. And the message maps seem to be
causing some unusual problem. Here is what I've added:

// Generated message map functions
//{{AFX_MSG(CThreadTestDlg)
virtual BOOL OnInitDialog();
afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
afx_msg void OnPaint();
afx_msg HCURSOR OnQueryDragIcon();
afx_msg void OnStart();
afx_msg LRESULT OnThreadFinished(UINT wParam, LONG lParam);


This the wrong signature. Also, I don't think you are supposed to manually
edit the area between the wizard markers, so I'd suggest moving it outside.

//}}AFX_MSG
ON_MESSAGE(UWM_THREAD_FINISHED, OnThreadFinished);


This belongs in the message-map in the *.cpp file.

DECLARE_MESSAGE_MAP()
private:
static UINT Thread1(LPVOID lParam);

  Are there any steps involved in adding these statements. I am getting
these errors:
error C2059: syntax error : '{'
error C2334: unexpected token(s) preceding '{'; skipping apparent function
body


Moving the message-map entry to the message-map will probably fix this.

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

 I am getting this error message for code:
error C2660: 'Thread1' : function does not take 0 parameters

UINT CThreadTestDlg::Thread1(LPVOID lParam)
{
CThreadTestDlg* pDlg = (CThreadTestDlg *)lParam;
pDlg->Thread1();


Have you declared and implemented such an overload?

--
Jeff Partch [VC++ MVP]

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