Re: [gtk-list] Re: button press capture

[Duane Johnson <duane_johnson geocities com>]

Although I haven't used one before, I think what you're looking for is an event
box.  Apparently, widgets such as labels and frames do not capture mouse click
events -- so you'll have to add an event box to handle the events.

Good luck,
Duane

On Wed, 16 Jun 1999, pavel wrote:
> Thank you, I understand your answer.
> But what if I have a label inside a frame and the label does not have a
> "button_press_event". Perhaps, I'm making a mistake or missing someting
> but with the code that I have, if I click over the label, the event is not
> passed to the frame.
> 
> All I have is gtk_signal_connect(GTK_OBJECT(frame),...).
> Giving the command gtk_widget_set_events(frame, ...) causes
> runtime ***warinings***. What am I doing wrong?!
> 
> Pavel
> 
> 
> 
> 
> On Wed, 16 Jun 1999, Duane Johnson wrote:
> 
> > I'm not sure exactly how you want your frame to "respond", but you can add code
> > that modifies your frame inside the button_press_event of the entry and/or the
> > preview widgets.
> > 
> > Whenever an event occurs inside a widget, the widget has the option of either
> > stopping the event right there, or passing it on to its parent(s).  For
> > example, if your "gint mywidget_button_press( ... )" returns a "TRUE" value,
> > then you are telling the signal handling process to STOP the signal (I think of
> > it this way:  I pretend the signal handling process is asking me the question
> > "Did you handle the event?" and I say "TRUE" if I did, or "FALSE" if I want the
> > widget's parents to continue handling it)
> > 
> > As an example, if your preview widget does not have a button_press_event, then
> > it could not have handled it, so the event is passed on to its parent (in this
> > case, the frame).  If you build a button_press_event for the preview, then you
> > can either tell the event to stop there (return TRUE;) or continue to the frame
> > (return FALSE;)
> > 
> > Hope this helps,
> > Duane
> > 
> >  On Wed, 16 Jun 1999, pavel wrote:
> > > Hi,
> > > 
> > > I would like to have the following setup:
> > > 
> > > A preview and an entry inside a frame. I need for the frame itself to
> > > respond to button clicks and if they happen over the preview or the entry
> > > to pass them through to the respective widgets. Can someone show me how to
> > > do that? I.E. what should my callbacks return, how can I make the frame
> > > receive mouse events, etc.
> > > 
> > > I noticed that I if I simply connect a button_press_event callback to the
> > > frame and click inside the entry then the frame callback is called. I'm
> > > not quite sure I understand why that happens. Can signals travel from
> > > children to parents?.. Anyway, I'm confused.
> > > 
> > > Pavel
> > > 
> > > -- 
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