xref: /docs/en/application-dev/reference/apis-mdm-kit/js-apis-enterprise-restrictions.md (revision e41f4b71)

# @ohos.enterprise.restrictions (Restrictions)

This **restrictions** module provides APIs for disallowing general features of devices.

> **NOTE**
>
> The initial APIs of this module are supported since API version 12. Newly added APIs will be marked with a superscript to indicate their earliest API version.
>
> The APIs of this module can be used only in the stage model.
>
> The APIs of this module can be called only by a [device administrator application](../../mdm/mdm-kit-guide.md#introduction) that is enabled.

## Modules to Import

```ts
import { restrictions } from '@kit.MDMKit';
```

## restrictions.setDisallowedPolicy

setDisallowedPolicy(admin: Want, feature: string, disallow: boolean): void

Disallows a feature.

**Required permissions**: ohos.permission.ENTERPRISE_MANAGE_RESTRICTIONS

**System capability**: SystemCapability.Customization.EnterpriseDeviceManager

**Parameters**

| Name  | Type                                                   | Mandatory| Description                                                        |
| -------- | ------------------------------------------------------- | ---- | ------------------------------------------------------------ |
| admin    | [Want](../apis-ability-kit/js-apis-app-ability-want.md) | Yes  | Device administrator application.                                              |
| feature  | string                                                  | Yes  | Feature to set.<br>- **bluetooth**: Bluetooth capability of the device.<br>- **modifyDateTime**: capability of setting the system time of the device.<br>- **printer**: printer capability of the device.<br>- **hdc**: OpenHarmony Device Connector (hdc).<br>- **microphone**: microphone capability of the device.<br>- **fingerprint**: fingerprint authentication capability of the device.<br>- **usb**: USB capability of the device.<br>- **wifi**: Wi-Fi capability of the device. <!--RP1--><!--RP1End--> |
| disallow | boolean                                                 | Yes  | Whether to disallow the feature. The value **true** means to disallow the feature; the value **false** means the opposite.                       |

**Error codes**

For details about the error codes, see [Enterprise Device Management Error Codes](errorcode-enterpriseDeviceManager.md) and [Universal Error Codes](../errorcode-universal.md).

| ID| Error Message                                                    |
| -------- | ------------------------------------------------------------ |
| 9200001  | The application is not an administrator application of the device. |
| 9200002  | The administrator application does not have permission to manage the device. |
| 201      | Permission verification failed. The application does not have the permission required to call the API. |
| 401      | Parameter error. Possible causes: 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed. |

**Example**

```ts
import { Want } from '@kit.AbilityKit';
let wantTemp: Want = {
  bundleName: 'bundleName',
  abilityName: 'abilityName',
};

try {
  restrictions.setDisallowedPolicy(wantTemp, 'printer', true);
  console.info('Succeeded in setting printer disabled');
} catch (err) {
  console.error(`Failed to set printer disabled. Code is ${err.code}, message is ${err.message}`);
}
```

## restrictions.getDisallowedPolicy

getDisallowedPolicy(admin: Want, feature: string): boolean

Obtains the status of a feature.

**Required permissions**: ohos.permission.ENTERPRISE_MANAGE_RESTRICTIONS

**System capability**: SystemCapability.Customization.EnterpriseDeviceManager

**Parameters**

| Name | Type                                                   | Mandatory| Description                                                        |
| ------- | ------------------------------------------------------- | ---- | ------------------------------------------------------------ |
| admin   | [Want](../apis-ability-kit/js-apis-app-ability-want.md) | Yes  | Device administrator application.                                              |
| feature | string                                                  | Yes  | Name of the feature, whose status is to be obtained.<br>- **bluetooth**: Bluetooth capability of the device.<br>- **modifyDateTime**: capability of setting the system time of the device.<br>- **printer**: printer capability of the device.<br>- **hdc**: OpenHarmony Device Connector (hdc).<br>- **microphone**: microphone capability of the device.<br>- **fingerprint**: fingerprint authentication capability of the device.<br>- **usb**: USB capability of the device.<br>- **wifi**: Wi-Fi capability of the device.<!--RP2--><!--RP2End--> |

**Return value**

| Type   | Description                                                        |
| ------- | ------------------------------------------------------------ |
| boolean | Returns **true** if the feature is disallowed; returns **false** otherwise.|

**Error codes**

For details about the error codes, see [Enterprise Device Management Error Codes](errorcode-enterpriseDeviceManager.md) and [Universal Error Codes](../errorcode-universal.md).

| ID| Error Message                                                    |
| -------- | ------------------------------------------------------------ |
| 9200001  | The application is not an administrator application of the device. |
| 9200002  | The administrator application does not have permission to manage the device. |
| 201      | Permission verification failed. The application does not have the permission required to call the API. |
| 401      | Parameter error. Possible causes: 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed. |

**Example**

```ts
import { Want } from '@kit.AbilityKit';
let wantTemp: Want = {
  bundleName: 'bundleName',
  abilityName: 'abilityName',
};

try {
  let result: boolean = restrictions.getDisallowedPolicy(wantTemp, 'printer');
  console.info(`Succeeded in querying is the printing function disabled : ${result}`);
} catch (err) {
  console.error(`Failed to set printer disabled. Code is ${err.code}, message is ${err.message}`);
}
```