# oh_bluetooth.h


## Overview

Defines the API for obtaining the Bluetooth switch state.

**Library**: libbluetooth_ndk.so

**System capability**: SystemCapability.Communication.Bluetooth.Core

**Since**: 13

**Related module**: [Bluetooth](_bluetooth.md)


## Summary


### Types

| Name| Description|
| -------- | -------- |
| typedef enum [Bluetooth_SwitchState](_bluetooth.md#bluetooth_switchstate) [Bluetooth_SwitchState](_bluetooth.md#bluetooth_switchstate) | Defines an enum for Bluetooth switch states.|
| typedef enum [Bluetooth_ResultCode](_bluetooth.md#bluetooth_resultcode) [Bluetooth_ResultCode](_bluetooth.md#bluetooth_resultcode) | Defines an enum for the error codes returned by Bluetooth APIs.|


### Enums

| Name| Description|
| -------- | -------- |
| [Bluetooth_SwitchState](_bluetooth.md#bluetooth_switchstate) {<br>[BLUETOOTH_STATE_OFF](_bluetooth.md) = 0,<br>[BLUETOOTH_STATE_TURNING_ON](_bluetooth.md) = 1,<br>[BLUETOOTH_STATE_ON](_bluetooth.md) = 2,<br>[BLUETOOTH_STATE_TURNING_OFF](_bluetooth.md) = 3,<br>[BLUETOOTH_STATE_BLE_TURNING_ON](_bluetooth.md) = 4,<br>[BLUETOOTH_STATE_BLE_ON](_bluetooth.md) = 5,<br>[BLUETOOTH_STATE_BLE_TURNING_OFF](_bluetooth.md) = 6<br>} | Enumerates the Bluetooth switch states. |
| [Bluetooth_ResultCode](_bluetooth.md#bluetooth_resultcode) {<br>[BLUETOOTH_SUCCESS](_bluetooth.md) = 0,<br>[BLUETOOTH_INVALID_PARAM](_bluetooth.md) = 401<br>} | Enumerates the error codes returned by Bluetooth APIs.|


### Functions

| Name| Description|
| -------- | -------- |
| [Bluetooth_ResultCode](_bluetooth.md#bluetooth_resultcode) [OH_Bluetooth_GetBluetoothSwitchState](_bluetooth.md#oh_bluetooth_getbluetoothswitchstate) ([Bluetooth_SwitchState](_bluetooth.md#bluetooth_switchstate) \*state) | Obtains the Bluetooth state.|