Re: confused about keyboard focus

[muppet <scott asofyet org>]

On Dec 30, 2005, at 4:08 PM, Torsten Schoenfeld wrote:

> On Fri, 2005-12-30 at 15:11 -0500, Travis J.I. Corcoran wrote:
>
> >         $entry2->has_focus(TRUE); # <---- IMPORTANT LINE
>
> has_focus just tells the entry that it's supposed to have focus now  
> and
> should thus draw the blinking cursor, etc. that you see.

Specifically, this just sets a flag in the widget, without doing  
anything else.  This is something intended for use by widget  
implementations, not by application code.


> Here are three ways that work:
>
>   Glib::Idle->add (sub { $entry2->grab_focus; 0; });
>   Glib::Idle->add (sub { $window->set_focus ($entry2); 0; });

If i recall correctly, the purpose of using the idle here is to defer  
the focus grab until after the window is on the screen, since the  
window will try to override the focus as it goes onscreen.  I've not  
tested this, but i believe an alternative to using an idle here is to  
perform this operation in an "after" handler for the window's realize  
or map signals.

>   $vbox->set_focus_child ($entry2);


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