[lazarus] Problem adding a tab when TNotebook is visible

[Shane Miller]

Thanks for looking at this.  What did you use to figure this out?  I use DDD
but haven't really figured out how to use it that well yet so I couldn't
tell what event was being fired...
---------------------------------------
Shane Miller
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----- Original Message -----
From: "Marc Weustink" <weus at quicknet.nl>
To: <lazarus at miraclec.com>
Sent: Friday, February 25, 2000 6:51 PM
Subject: Re: [lazarus] Problem adding a tab when TNotebook is visible


> At 01:01 26-02-2000 +0100, I wrote:
>
> >Ok I tracked down the problem. It has to do with the way pages are added.
> >After a page has been added (in delphi) it receives focus. We do the
same,
> >only the page isn't added yet ;-).
> >As a temp solution I removed (and committed) this, and I'm looking for a
> >way to handle the focus.
>
> This looked like the problem, but the real problem is larger, some parts
of
> the notebook need to be recoded.
> In GTK to get a user caption on a page, you need a label.  This label is
> created by way of a TLabel. The GTK part of this label is later on used as
> the page label.
> This aproach has two nasty side effects:
> 1) It is platform dependent. In a non GTK environment you'll end up with
an
> extra label
> 2) Since it was a LCL control it has still all events and such attached to
> it. This resulted in our crash when the control is visible (events are
> attached when a control is visible, since on a invisible notebook control
> the label was used before it went visible, the events were never attached)
>
> Point 2 you might overcome by first detaching the signals, point 1 still
> remains. When I find some time tomorrow I'll fix it.
>
> Marc
>
>
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