Re: Critical section-Updating the Dialog from Workerthread

From:

Lucress Carol <incognito.me@gmx.de>

Newsgroups:

microsoft.public.vc.mfc

Date:

Thu, 29 Mar 2012 13:59:09 -0700 (PDT)

Message-ID:

<a1b0ca04-863f-453e-aa04-d9a172c562ef@b2g2000yqb.googlegroups.com>

On 29 mar, 19:43, scott...@mvps.org wrote:

No, that's not what I meant. The posted value is received in the wParam, =

but you are not doing anything with the received wParam.

LRESULT CStartCalculationDlg::OnSendCalculatedValue( WPARAM newvalue, LPA=

RAM )

{
m_Calculation.Format(_T("%d"), (int) newvalue);

I'm not quite sure to have understood. So, you mean:

LRESULT CStartCalculationDlg::OnSendCalculatedValue( WPARAM newvalue,
LPARAM )
{
newvalue=rand()*m_Slider.GetPos();
m_Calculation.Format(_T("%d"), (int) newvalue);
....
}

and in the Thread procedure:
PostMessage (pCalculateMgr-> m_hWnd,
WM_SENDCALCULATED_VALUE,pCalculateMgr->(WPARAM)c,0);
right?

Is there a possibility to calculate in the Thread procedure the
operation rand()*m_Slider.GetPos() and send the result via PostMessage
instead of doing it in the OnSendCalculatedValue( WPARAM, LPARAM )
method? In that case, how can I access m_Slider since it's not allowed
to touch gui controls in the Thread procedure?

Thank you