Re: [gtk-list] button press capture.

[Duane Johnson <duane_johnson geocities com>]

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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