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pcj0961
pcj0961 asked
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Last Modified: 2013-11-19
if a worker thread is derived from CWinThread using AfxBeginThread why does it not have a message pump ???
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Commented:
I have created a worker thread using AfxBeginThread
that has a for(;;){} loop that never returns (it runs continuosly looking for messages passed to it). Is it better
to do this type of application (thread) with a UI thread and use the Run(){} loop of the CWinThread object to do my processing.

Commented:
Worker thread doesn't have any windows so it is impossible to send message to it. Usually worker thread does some data processing and notifies main UI thread using messages. If you still want your worker thread to have a window, create hidden window inside CWinThread::InitInstance and assign it's pointer to m_pMainWnd. then you can send messages to this hidden window.
Any thread can have a message pump! But if the thread do not create any windows or do not need to receive messages posted using PostThreadMessage() there is no reason to do a message pump.

Remember: Windows are owned by the thread that created them.


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