Cancel solution closing event

In the package I'm trying to build I'm registering to the "BeforeClosing" event in the following way:

        DTE dte = Package.GetGlobalService(typeof(DTE)) as DTE;
        dte.Events.SolutionEvents.BeforeClosing += SolutionEvents_BeforeClosing;

and the signature for this event handler looks like this:

        private void SolutionEvents_BeforeClosing()
        {
            //Check some stuff
            //Cancel the close operation
        }

Is it possible to cancel the closing of the solution from within the event handler?