SV: Clear pending events

[Maximilian Matthé]

Hi!

Thanks for your answer. But the problem seems to be deeper in the code. 
The message queue seems to be empty. Heres how I send the events from 
the threads:

wxCommandEvent ev(wxEVT_UPDATEPROGDLG, wxID_ANY);
ev.SetInt(1);
m_CmpHandler.AddPendingEvent(ev);

m_CmpHandler is a reference to a class derived from wxEvtHandler.
void cModuleData::CompareHandler::OnUpdateProgDlg(wxCommandEvent &e)
{
	m_Counter += e.GetInt();
	if(wxIsMainThread())
	{
		if(e.GetInt())
			m_ProgDlg.Update(m_Counter);
	}
}

m_ProgDlg ist a reference to a progress dialog object. the command event 
contains how far the progress has gone since the last event.

I have two threads that send each about 1000 events in about 2 minutes, 
i think this is not too much.

As aid, the message loop is empty after I call while(app->Pending()) 
ap->Dispatch(); But, wxLogError("xyz"); does not appear until the 
program ends. What could be the problem too? I have no idea...

Regards, Max

Arne Steinarson schrieb:
> Hello, 
> 
> There is a function wxApp::ProcessPendingEvents that I
> think does what you want.
> 
> Looking into doc for wx I cannot find it there, but
> it's in the headers (for 2.8.4 at least).
> 
> Regards
> // ATS
> 
> 
> --- Maximilian Matthé <Maxi.Matthe at web.de> skrev:
> 
>> Hello!
>>
>> I have the following problem: I have a heavy
>> calculation that is split 
>> into two threads. Both threads add pending events to
>> an event handler 
>> class that updates a progress dialog. So I can show
>> the progress of the 
>> calculation.
>>
>> Both threads are joinable, I create them via new in
>> a function, wait for 
>> them and delete the threads. The handler is created
>> as a stack variable 
>> just in that function. So, when the threads are
>> done, the handler is 
>> destructed automatically. But it seems, that there
>> are pending events in 
>> the event loop of the application which can only be
>> handled by the stack 
>> event handler (its a user defined event type). Thus
>> the message queue is 
>> blocked by those events, and e.g. wxLogError does
>> not show messageboxes 
>> but waits until the end of the program.
>>
>> So my question is: How can i clear the messageloop
>> from those pending 
>> events? I tried this: while(app->Pending())
>> app->Dispatch(); but this 
>> had no effect.
>> I dont want to create the handler with new, becuase
>> i only need it in 
>> this function, and nobody could delete it
>> afterwards.
>>
>> I hope you can help
>> Max
>>
>>
>>
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