| 3ds Max C++ API Reference
    | 
| Classes | |
| class | Interval | 
| Macros | |
| #define | FOREVER Interval(TIME_NegInfinity, TIME_PosInfinity) | 
| #define | NEVER Interval(TIME_NegInfinity, TIME_NegInfinity) | 
| #define FOREVER Interval(TIME_NegInfinity, TIME_PosInfinity) | 
| #define NEVER Interval(TIME_NegInfinity, TIME_NegInfinity) |