how to process events in a loop

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Hi,

in my C-Program there is a loop, where data are send and received.

I want to give the user a chance to break this loop.
There is a push-button on the dialog-form. In the event-handler there is a flag, which is set, when the button is pressed. But when the program is running in the lopp, this code is never reached.

In the loop, I want to break, if the flag is set.

How can I achieve that the button-pressed-event is processed,
when the program ist running in the transmission-loop.

Perhaps someone knows a solution.

Have a nice day!

Franz

Have you tried running the 'loop' in a different thread then the User Interface? It might be the problem that the main thread is so busy looping that it ignored/doesn't receive the button press...

Re: how to process events in a loop

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Your best solution would be to kick off your loop as a seperate thread.

the other option is to process messages every so often, by peeking and pumping the message handler.

The thread method is the cleanest by far.

..Chuck..

the other option is to process messages every so often, by peeking and pumping the message handler.

Is this like the old VB command DoEvents?

I am looking for a way to process the WM_PAINT event of a form, whilst again in a loop, which the DoEvents would have perfectly completed.

Have you a code example for 'peeking and pumping'?

Thanks!

Ben.

Originally Posted by benclewett

Have you a code example for 'peeking and pumping'?

void CProgressDlg::PeekAndPump()
{
MSG msg;
while (::PeekMessage(&msg, NULL,0,0,PM_NOREMOVE)) {
if (!AfxGetApp()->PumpMessage()) {
::PostQuitMessage(0);
return;
}
}
}