 | Contents | Index |
| Units | HTk ScrollBar |
| Unmap | Core HTk Wish |
| Up | SpinButton |
| unbindCmd | Core GUIObject |
| unbreakName | FileNames |
| undefinedFormValue | InputForm InputWin |
| underline | Configuration HTk MarkupText |
| underlined | HTk TextTag |
| undoLastMotion | Notepad |
| union | MarkupText |
| unpost | HTk Menu |
| unsetMark | HTk Mark |
| updNotepadScrollRegion | Notepad |
| updateAllTasks | HTk |
| updateBroadcaster | Broadcaster |
| updateIdleTasks | HTk |
| updateMap | VariableMap |
| updateSet | VariableSet |
| updateTextArea | GenGUI |
| updateTreeList | TreeList |
| upsilon | MarkupText |
| usecs | Thread |
| usualProgramArguments | WBFiles |
| uunion | MarkupText |
| uuparrow | MarkupText |
| uupsilon | MarkupText |