minor add

[lttv.git] / ltt / branches / poly / lttv / modules / gui / lttvwindow / lttvwindow / viewer.h

diff --git a/ltt/branches/poly/lttv/modules/gui/lttvwindow/lttvwindow/viewer.h b/ltt/branches/poly/lttv/modules/gui/lttvwindow/lttvwindow/viewer.h
index d332da57746badd8559ae8cab28507d14d3f920c..f3aceb5949850d14461cf2ca050cfff58bfab1a6 100644 (file)
--- a/ltt/branches/poly/lttv/modules/gui/lttvwindow/lttvwindow/viewer.h
+++ b/ltt/branches/poly/lttv/modules/gui/lttvwindow/lttvwindow/viewer.h
@@ -132,8 +132,16 @@ instead of just one. That means that X events are delivered by the glib main
 loop directly to the widget corresponding to the GdkWindow affected by the X
 event.
 
-Event delivery to a widget emits a signal on this widget. Signal emission and
-propagation is described there : 
+Event delivery to a widget emits a signal on that widget. Then, if a handler
+is connected to this widget's signal, it will be executed. There are default
+handlers for signals, connected at class instantiation time. There is also
+the possibility to connect other handlers to these signals, which is what
+should be done in most cases when a viewer needs to interact with X in any
+way.
+
+
+
+Signal emission and propagation is described there : 
 
 http://www.gtk.org/tutorial/sec-signalemissionandpropagation.html