Re: How to make a GtkButton respond to a key press

[Jim Charlton <charltn gmail com>]

On 15-03-06 06:52 AM, Michael Torrie wrote:
> On 03/05/2015 09:31 PM, Jim Charlton wrote:
> > I presume you have a callback function connected to the button press
> > event.  Just create code to intercept the keyboard event and go to a
> > callback function that sees what key was pressed and then calls the same
> > function that would have been called had the button been pressed.
> >
> > The first example I found from Google was
> > http://stackoverflow.com/questions/10134956/in-simple-gtk-key-press-event-example-gdk-shift-mask-seems-to-be-ignored
> >
> > You can see the code you need to intercept the keyboard event.
> >
> > I do exactly this sort of thing in programs with the user being able to
> > hit a select keyboard key or click the button (although I am using gtkmm3).
> No, this is not quite what I am asking for.  Capturing keyboard events
> is fine, but I need the button to click visually, for feedback purposes.
>   Just like what happens if you define the control key shortcut and press
> that.
>
> So the question is either, how can I get GtkButton to respond to a
> non-modifier hotkey, or how can I programmatically get GtkButton to
> visually depress and release?
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Ah.  I see.  Sorry that I misunderstood.  In my case, I just use the 
button set_sensitive() method to deactivate the button until I am ready 
to reactivate it.  This greys out the button.  I suppose that you could 
use this with a short delay to flash the button.  Or you could just 
flash the button background color.

It seems like gtk just changes/flashes the background color of the 
button when you click it, but I am not sure exactly which method it uses 
to do that.

jim...