use the size-allocate event for the widget, or check its size via
gtk_widget_get_allocation() and cousins.

On Thu, Nov 3, 2016 at 10:47 PM, Krzysztof <k...@limes.com.pl> wrote:

> Assume that:
>
> window default size is 300x300
>
> window has box with menu bar and drawing area:
>
> box = new Gtk::Box(Gtk::ORIENTATION_VERTICAL);
> box->pack_start(menuBar, Gtk::PACK_SHRINK);
> box->pack_start(*darea, Gtk::PACK_EXPAND_WIDGET);
>
> What is and how to determine the size of area where I can actually do all
> drawing?
>
>
> --
> Regards
> Krzysztof J.
>
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>
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