22 lines
934 B
Markdown
22 lines
934 B
Markdown
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uid: input-system-device-states
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---
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# Device states
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Observe and change Device control state from script beyond what native backends send.
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Each [Device](devices-scripting.md) stores control values in memory, usually updated by [state events](read-state-events.md). Use change monitors to react when values change, or synthesize state when you need derived or manual updates.
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| **Topic** | **Description** |
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| :--- | :--- |
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| **[Monitor device state changes](monitor-device-state-changes.md)** | Register callbacks with `InputState.AddChangeMonitor` when control state changes. |
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| **[Synthesize a device state change](synthesize-device-state-change.md)** | Push state changes with `InputState.Change` for derived or manual control values. |
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## Additional resources
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- [Controls](controls.md)
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- [Read state events](read-state-events.md)
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- [Device commands](device-commands.md)
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- [Working with devices](working-with-devices.md)
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