HeapScroller.OnRealized C# (CSharp) Méthode

    protected override void OnRealized()
    {
        WidgetFlags |= WidgetFlags.Realized;
        GdkWindow = ParentWindow;

        base.OnRealized ();

        Gdk.WindowAttr attr = Gdk.WindowAttr.Zero;
        attr.WindowType = Gdk.WindowType.Child;

        attr.X = Allocation.X;
        attr.Y = Allocation.Y;
        attr.Width = Allocation.Width;
        attr.Height = Allocation.Height;
        attr.Wclass = Gdk.WindowClass.InputOnly;
        attr.EventMask = (int) Events;
        attr.EventMask |= (int) (Gdk.EventMask.ButtonPressMask |
            Gdk.EventMask.ButtonReleaseMask |
            Gdk.EventMask.PointerMotionMask);

        event_window = new Gdk.Window (GdkWindow, attr, (int) (Gdk.WindowAttributesType.X | Gdk.WindowAttributesType.Y));
        event_window.UserData = this.Handle;
    }