The buttonCreating event is called before the caption buttons are created. It can be used to change the array of the buttons or to change, add, or remove buttons from the title bar.

$(function () {
    // Set buttonCreating event handler function
    $(".selector").wijdialog({
        buttonCreating : function (e, data) {
     
        }
    });
});

buttonCreating = function ( 
   e : jQuery.Event,
   data : object
) { };