Called

The current number of references that the object has.

When an object is created, its reference counter equals one (1). When a new reference is created, its value increases. As a reference goes out of scope, its value decreases.

The following example prints the number of references for objA to the output window.

static void Object_UsageCount(Args _args)
{
    Object objA = new Object();
    Object objB;
    ;

    print objA.usageCount();    // Prints 1.

    objB = objA;                // objB is a reference to objA.
    print objA.usageCount();    // prints 2
    pause;
}