Motif provides the Xme calls shown in Table 8-7 to help
widget writers handle focus changes.
| Xme Function | What It Does: |
| XmeAddFocusChangeCallback | Registers a callback for focus changes |
| XmeNavigChangeManaged | Helps a change_managed method establish the correct keyboard traversal policy |
| XmeRemoveFocusChangeCallback | Removes a focus change callback |