Hi,<br>
<br>
I have noticed that when you release the button (finger, stylus, etc.), Gtk emits a<br>
motion-notify event with the same pointer coordinates again. By comparing these values with<br>
the ones from the previous motion-notify-event, you can detect button releasing, too.<br>
Gtk on my desktop computer behaves differently, so maybe this is a Hildon or touchscreen issue.<br>
<br>
Cheers,<br>
Martin<br><br><br><div><span class="gmail_quote">2007/11/8, Chris Lord <<a href="mailto:chris@openedhand.com">chris@openedhand.com</a>>:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
It could be that the motion hint is set on the widget - this stops<br>motion events being reported until the app has had time to handle them<br>so you don't get a back-log of events... I might (in fact, probably) be<br>
remembering incorrectly, but previous hildon gtk had a patch so it was<br>set by default I think?<br><br>Either way, something to check out - Have a look at<br>gtk_widget_add_events, GdkEventMask and GDK_POINTER_MOTION_HINT_MASK.
<br>I've not tried python, but I certainly didn't have this problem in C.<br><br>--Chris<br><br>On Wed, 2007-11-07 at 22:32 -0800, George Nachman wrote:<br>> I've written an app in PyMaemo that is very sensitive to getting
<br>> OnButtonUp events on time and I noticed that if I touch the screen<br>> with my finger, move it, and let it up all very quickly that I don't<br>> get the button_release_event message. I do get a button_press_event
<br>> and maybe a motion_notify_event, but GTK never tells me I released the<br>> button. If I then tap on the screen I immediately get a<br>> button_release_event, motion_notify_event, and button_press_event in<br>
> very quick succession.<br>><br>> My program runs in a full-screen window, so I don't believe something<br>> else could be getting my button_release_event--and besides, I do get<br>> it when I tap on the screen later on, anyway.
<br>><br>> Has anyone ever heard of this? Could I just be doing something silly?<br>><br>> Thanks,<br>> George<br>> _______________________________________________<br>> maemo-developers mailing list<br>
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