Disable closeOnClick after key down

I want to set the parameter closeOnClick to false, when something is typed in the modal.

I tried:

callbacks: {
    keyHandle: function(nm){
        debug(nm.closeOnClick);
        nm.closeOnClick = false;
        $.nmTop({closeOnClick : false});
        $.nmObj({closeOnClick: false});
        debug(nm.closeOnClick);
    }
}

But none of them sets the value to false.
How can I manage this?
