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ui.root.setKeyHandler
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Sets a keydown event handler to the root panel with a non-predefined key. The handler is fired only once when a user presses the bound key command. The same key will be bound to the latest handler set to it.
| Usage | Returns | ui.root.setKeyHandler(keyCode, handler, description) | |
| Argument | Type | Details | keyCode | List[ui.Key]|ui.Key | A key code or an array of key codes. For example, ui.Key.A or [ui.Key.SHIFT, ui.Key.A]. |
handler | Function | The handler for the key command. |
description | String, optional | A short description that explains this key command. The description will be visible in the Shortcuts Menu. |
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Last updated 2026-01-08 UTC.
[null,null,["Last updated 2026-01-08 UTC."],[],["The `setKeyHandler` function binds a key command to a handler function on the root panel. It accepts a key code (or array of codes), a handler function, and an optional description. When the bound key is pressed, the handler is executed once. Only the most recently assigned handler for a specific key will be triggered. Key codes can be individual (e.g., `ui.Key.A`) or combined (e.g., `[ui.Key.SHIFT, ui.Key.A]`). The description is used in the Shortcuts Menu.\n"]]