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List:       kde-core-devel
Subject:    Re: KTextEditor enhancement
From:       Bernd Gehrmann <bernd () physik ! hu-berlin ! de>
Date:       2001-10-08 9:49:58
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On Mon, 8 Oct 2001, Simon Hausmann wrote:
> UndoInterface *undo = dynamic_cast<UndoInterface *>( document );
> if ( !undo )
>     return; // ...
> 
> fooBar( undo->isRedoAvailable() );
> 
> connect( document, SIGNAL( undoStatusChanged( bool ) ),
>          bleh, SLOT( bar() ) );

But for this you have to declare the signal in the implementation
class, not in the interface? I mean, this works, because of the
dynamical nature of signal/slot connections, but the interface
is then not self-documenting anymore.

Bernd.

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