Re: [Fxruby-users] setFocus

[jeroen <je...@fo...>]

On Saturday 22 May 2004 01:39 am, Hal Fulton wrote:
> Thanks, Lyle... I'll cc Jeroen and on this then.
>
> I'll leave it on fxruby-users in case someone else
> can learn from it.
>
> Lyle Johnson wrote:
> > On May 17, 2004, at 4:12 PM, Hal Fulton wrote:
> >> Are there general rules for setFocus that I need to know?
> >
> > Umm, maybe? ;)
> >
> > I would start out by reading Jeroen's documentation on how keyboard
> > focus handling works in FOX:
> >
> >     http://www.fox-toolkit.com/focus.html
> >
> > and then follow up with him (or on the foxgui-users mailing list) if
> > that still leaves unanswered questions.
>
> Jeroen:
>
> I'm trying to understand this sentence:
>
>      "setFocus() puts a widget into the focus chain. If the toplevel
>       widget had the REAL focus from the window system [the window
>       manager only assigns keyboard focus to a toplevel window], then
>       setFocus() generates a SEL_FOCUSIN message; note that in the
>       process of child->setFocus(), the whole chain is built up by upward
>       recursion, and the child does not become switched into the focus
>       chain until the parent is also."
>
> Does this mean I can't do a setFocus on a modal dialog box or its
> contents? What is meant by a toplevel window -- one that stands alone,
> or an actual main window?

Anything derived from FXTopWindow, in other words, a direct child of
the root window that's not a popup.

> All I'm trying to do is display a modal dialog box and give the focus
> to the single text field in it. Nothing I try works.

Perhaps one of your buttons has the BUTTON_INITIAL and BUTTON_DEFAULT
options?  Normally, such a button attracts the focus when the dialog
is first shown...


Regards,

		Jeroen


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| Copyright (C) 23:50 12/11/2003 Jeroen van der Zijp.   All Rights Reserved. |
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