This forces the XOverlay element (in this case xvimagesink?) to redraw: http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstxoverlay.html#gst-x-overlay-expose , although your actual code would be of much interest in order to help. -- Milosz On 9/27/07, krist misra <krist.misra@xxxxxxxxx> wrote: > Hi Paul, > Thanks for your reply, generally for the static stuff, such as text or a > picture, it can be saved and then redrawed after expose-event occurs, but > how can i save and redraw it for video that keeps moving on? I try to set > the xviamge output to the exposed widget one more time in the expose-event > handler, I thought it should rerender the covered part, but in fact it does > not act as what i was thinking. > I am not sure where I should post this question, maillist of gstreamer or > that of gtk... > Thanks > > K.M > > > > On 9/27/07, Paul Davis <paul@xxxxxxxxxxxxxxxxxxxxx> wrote: > > On Thu, 2007-09-27 at 10:42 +0800, krist misra wrote: > > > Hi experts, > > > > > > I am using GTK+ and gstreamer to capture and show the video frames, I > > > created a drawable widget using gtk_drawing_area_new() and using > > > xvimage element of gstreamer to render the video, I also connected > > > them by a gstreamer function gst_x_overlay_set_xwindow_id(), so the > > > video frames rendered by xvimage can show in the widget, now it works > > > well. > > > > > But I encounter a problem that if part of the drawable widget being > > > covered by a menu or something, when the menu disappears, the covered > > > section keeps blank, even other part of the widget still show the > > > video. > > > > an expose event handler is required to *redraw* the area specified in > > the expose event. receipt of this event means (generally speaking) that > > whatever the contents of the window in that area used to be, they are > > lost and needed to be recomputed/redrawn. > > > > > > > > > _______________________________________________ > gtk-list mailing list > gtk-list@xxxxxxxxx > http://mail.gnome.org/mailman/listinfo/gtk-list > > _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list
