As you can see by looking at Table 2-5 on the following page, the functionality of the animation control is simple. Rather than listing messages, this table shows you the macros that the system supplies to manipulate animation controls. Some of the messages correspond to more than one member function, depending on the parameters you send to them. For me, it is far easier to understand the code if I use the macros, because they tell me exactly what I am trying to do.
| Macro | Member Function | Description |
| Animate_Close | Close | Closes an AVI clip that was previously opened. |
| Animate_Create | Create | Creates an animation control. |
| Animate_Open | Open | Opens an AVI clip from a file or a resource and displays the first frame. |
| Animate_Play | Play | Plays an AVI clip without sound. |
| Animate_Seek | Seek | Displays a selected single frame of an AVI clip. |
| Animate_Stop | Stop | Stops playing an AVI clip. |
Table 2-5. Animation control macros and member functions.