$(function () {
    
    // Get value
    var returnsValue; // Type:  wijmo.gauge.gauge_pointer
    returnsValue = $(".selector").wijlineargauge("option", "pointer");
    
    // Set value
    var newValue; // Type:  wijmo.gauge.gauge_pointer
    $(".selector").wijlineargauge("option", "pointer", newValue);
        
});