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An application is usually comprised of a series of dialogs -- long-lasting (created with VtFormDialog(VTCL)), or transient (all other dialogs).
Only the following widgets can have non-Dialog children: Application, Form, RowColumn, Dialog.
The following widgets can have children of only the specified types:
| Parent: | Children: |
|---|---|
| MenuBar | Pulldown |
| Pulldown | Button, ToggleButton, Pulldown, Separator |
| OptionMenu | Button |
Dialogs should only be parented by the following WidgetTypes: Application, Dialog, Form, and RowColumn.