On 25/12/16 17:08, boB Stepp wrote: > Then I see that I have a GCE (Gross Conceptual Error) floating around. > I thought that event loops are just intercepting the redirected stdin > from the keyboard. This is not true? If not, then how is this > working?
No event loops don't use stdin. They are monitoring the hardware devices directly and creating event objects that are put in a queue maintained by the GUI framework itself. Most frameworks allow you create your own events and inject them into the queue but they don;t come from stdin. You could write a background thread that read stdin and generated events from there but that's not normal by any means. Some GUI programs will read stdin and process anything found there but its usually a completely different set of commands from those used by the normal user - and even this is very rare. For more exact detail of how GUIs get their input you will need to investigate the individual GUIs, even drilling down to X-Server level or the Windows API. -- Alan G Author of the Learn to Program web site http://www.alan-g.me.uk/ http://www.amazon.com/author/alan_gauld Follow my photo-blog on Flickr at: http://www.flickr.com/photos/alangauldphotos _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
