Question

I would like to override private function of lightbox library.

This is the part of its code:

$.fn.lightBox = function(settings) {

    var jQueryMatchedObj = this; // This, in this context, refer to jQuery object

    function _set_interface()
    {
        //....
    }

    function _start(objClicked,jQueryMatchedObj) {
        //...
        _set_interface();
        //...
    }

    function _initialize() {
    _start(this,jQueryMatchedObj);
        return false;
    }

    return this.unbind('click').click(_initialize);
}

I need override _set_interface function. Is it possible?

Answer 1

No, it is not possible….

You have no access to that private scope of the plugin.

Which as (@crush says below in the comments) is the entire point of private functions (or scope).