MAXScript Distinguished Values

There are several distinguished values in MAXScript that are implemented as global instances of their classes. Some examples are:

• undefined
• ok;
• unsupplied
• true_value
• false_value

Because these are actual instances of a Value derived class and most SDK functionality works with Value*, it is important to remember to pass them by address as in the following example:

return & ok;                 // return the ok value
if (val == &true_value) ... // value true?