# tui/mount-widget
Mount a Deft widget as an event-handling child of a panel's component tree.
Unlike `tui/mount` (mounts a whole component instance as panel content), this
attaches a single widget that participates in target-phase dispatch.
## Syntax
[tui/mount-widget panel-id-or-tag widget]
## Parameters
- `panel-id-or-tag` — numeric panel ID or string tag (resolved via find-panel)
- `widget` — tagged-map widget value to mount as a child
## Examples
[tui/mount-widget [tui/self] %TextInput{ :id "msg" :text "" }]
## Returns
`true` on success, `false` if the panel or widget is invalid.
## See Also
`tui/mount`, `tui/get-child-value`, `tui/set-child-value`