Re: PostMessage and unprocessed messages

I would discard option #2, and focus on option #1:

How would you suggest to implement the on-close handler?

I'm currently doing something like this:

<code>

 // *** Dialog-box On-Close Handler ***

 ...

// m_workerThread is an instance of a custom thread class I wrote,
// which stores the thread handle, the thread ID, which has a
// destructor to safely delete the thread calling CloseHandle, etc.
if ( m_workerThread != NULL )
{
    // Signal the thread to stop its working loop
    m_workerThread->RequireCancel();

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

    // Thread cleanup
    delete m_workerThread;
    m_workerThread = NULL;
}

...

</code>

The RequireCancel() method sets a flag inside the thread class.
The thread procedure checks the value if this flag, and if this flag is
true, it breaks the loop, so the thread exits.

However, there could be some WMU_WORKER_PROGRESS messages pending (with an
LPARAM pointing to something that needs a delete!)... how could I get them
and do proper delete?