harmony 鸿蒙@ohos.enterprise.restrictions (Restrictions)

2023-10-30
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@ohos.enterprise.restrictions (Restrictions)

This restrictions module provides APIs for setting general restriction policies, including disabling or enabling device printing and HDC.

NOTE

The initial APIs of this module are supported since API version 10. 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 provided by this module can be called only by a device administrator application that is enabled.

Modules to Import

import restrictions from '@ohos.enterprise.restrictions';

restrictions.setPrinterDisabled

setPrinterDisabled(admin: Want, disabled: boolean, callback: AsyncCallback<void>): void

Enables or disables device printing through the specified device administrator application. This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.ENTERPRISE_RESTRICT_POLICY

System capability: SystemCapability.Customization.EnterpriseDeviceManager

System API: This is a system API.

Parameters

Name	Type	Mandatory	Description
admin	Want	Yes	Device administrator application.
disabled	boolean	Yes	Whether to disable device printing. The value true means to disable device printing; the value false means the opposite.
callback	AsyncCallback<void>	Yes	Callback invoked to return the result. If the operation is successful, err is null. Otherwise, err is an error object.

Error codes

For details about the error codes, see Enterprise Device Management Error Codes.

ID	Error Message
9200001	the application is not an administrator of the device.
9200002	the administrator application does not have permission to manage the device.

Example

import Want from '@ohos.app.ability.Want';
let wantTemp: Want = {
  bundleName: 'bundleName',
  abilityName: 'abilityName',
};

restrictions.setPrinterDisabled(wantTemp, true, (err) => {
  if (err) {
    console.error(`Failed to set printer disabled. Code is ${err.code}, message is ${err.message}`);
    return;
  }
  console.info('Succeeded in setting printer disabled');
})

restrictions.setPrinterDisabled

setPrinterDisabled(admin: Want, disabled: boolean): Promise<void>

Enables or disables device printing through the specified device administrator application. This API uses a promise to return the result.

Required permissions: ohos.permission.ENTERPRISE_RESTRICT_POLICY

System capability: SystemCapability.Customization.EnterpriseDeviceManager

System API: This is a system API.

Parameters

Name	Type	Mandatory	Description
admin	Want	Yes	Device administrator application.
disabled	boolean	Yes	Whether to disable device printing. The value true means to disable device printing; the value false means the opposite.

Return value

Type	Description
Promise<void>	Promise that returns no value. An error object will be thrown if the specified device administrator application fails to disable or enable the device printing function.

Error codes

For details about the error codes, see Enterprise Device Management Error Codes.

ID	Error Message
9200001	the application is not an administrator of the device.
9200002	the administrator application does not have permission to manage the device.

Example

import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';
let wantTemp: Want = {
  bundleName: 'bundleName',
  abilityName: 'abilityName',
};

restrictions.setPrinterDisabled(wantTemp, true).then(() => {
  console.info('Succeeded in setting printer disabled');
}).catch((err: BusinessError) => {
  console.error(`Failed to set printer disabled. Code is ${err.code}, message is ${err.message}`);
})

restrictions.isPrinterDisabled

isPrinterDisabled(admin: Want, callback: AsyncCallback<boolean>): void

Checks whether printing is disabled for devices through the specified device administrator application. This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.ENTERPRISE_RESTRICT_POLICY

System capability: SystemCapability.Customization.EnterpriseDeviceManager

System API: This is a system API.

Parameters

Name	Type	Mandatory	Description
admin	Want	Yes	Device administrator application.
callback	AsyncCallback<boolean>	Yes	Callback invoked to return the result. The value true means that device printing is disabled; the value false means the opposite.

Error codes

For details about the error codes, see Enterprise Device Management Error Codes.

ID	Error Message
9200001	the application is not an administrator of the device.
9200002	the administrator application does not have permission to manage the device.

Example

import Want from '@ohos.app.ability.Want';
let wantTemp: Want = {
  bundleName: 'bundleName',
  abilityName: 'abilityName',
};

restrictions.isPrinterDisabled(wantTemp, (err, result) => {
  if (err) {
    console.error(`Failed to query is the printing function disabled or not. Code is ${err.code}, message is ${err.message}`);
    return;
  }
  console.info(`Succeeded in querying is the printing function disabled : ${result}`);
})

restrictions.isPrinterDisabled

isPrinterDisabled(admin: Want): Promise<boolean>

Checks whether printing is disabled for devices through the specified device administrator application. This API uses a promise to return the result.

Required permissions: ohos.permission.ENTERPRISE_RESTRICT_POLICY

System capability: SystemCapability.Customization.EnterpriseDeviceManager

System API: This is a system API.

Parameters

Name	Type	Mandatory	Description
admin	Want	Yes	Device administrator application.

Return value

Type	Description
Promise<boolean>	Promise used to return the result. The value true means that device printing is disabled; the value false means the opposite.

Error codes

For details about the error codes, see Enterprise Device Management Error Codes.

ID	Error Message
9200001	the application is not an administrator of the device.
9200002	the administrator application does not have permission to manage the device.

Example

import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';
let wantTemp: Want = {
  bundleName: 'bundleName',
  abilityName: 'abilityName',
};

restrictions.isPrinterDisabled(wantTemp).then((result) => {
  console.info(`Succeeded in querying is the printing function disabled : ${result}`);
}).catch((err: BusinessError) => {
  console.error(`Failed to query is the printing function disabled or not. Code is ${err.code}, message is ${err.message}`);
})

restrictions.setHdcDisabled

setHdcDisabled(admin: Want, disabled: boolean, callback: AsyncCallback<void>): void

Enables or disables HDC through the specified device administrator application. This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.ENTERPRISE_RESTRICT_POLICY

System capability: SystemCapability.Customization.EnterpriseDeviceManager

System API: This is a system API.

Parameters

Name	Type	Mandatory	Description
admin	Want	Yes	Device administrator application.
disabled	boolean	Yes	Whether to disable HDC. The value true means to disable HDC; the value false means the opposite.
callback	AsyncCallback<void>	Yes	Callback invoked to return the result. If the operation is successful, err is null. Otherwise, err is an error object.

Error codes

For details about the error codes, see Enterprise Device Management Error Codes.

ID	Error Message
9200001	the application is not an administrator of the device.
9200002	the administrator application does not have permission to manage the device.

Example

import Want from '@ohos.app.ability.Want';
let wantTemp: Want = {
  bundleName: 'bundleName',
  abilityName: 'abilityName',
};

restrictions.setHdcDisabled(wantTemp, true, (err) => {
  if (err) {
    console.error(`Failed to set hdc disabled. Code is ${err.code}, message is ${err.message}`);
    return;
  }
  console.info('Succeeded in setting hdc disabled');
})

restrictions.setHdcDisabled

setHdcDisabled(admin: Want, disabled: boolean): Promise<void>

Enables or disables HDC through the specified device administrator application. This API uses a promise to return the result.

Required permissions: ohos.permission.ENTERPRISE_RESTRICT_POLICY

System capability: SystemCapability.Customization.EnterpriseDeviceManager

System API: This is a system API.

Parameters

Name	Type	Mandatory	Description
admin	Want	Yes	Device administrator application.
disabled	boolean	Yes	Whether to disable HDC. The value true means to disable HDC; the value false means the opposite.

Return value

Type	Description
Promise<void>	Promise that returns no value. An error object will be thrown if the specified device administrator application fails to disable or enable HDC.

Error codes

For details about the error codes, see Enterprise Device Management Error Codes.

ID	Error Message
9200001	the application is not an administrator of the device.
9200002	the administrator application does not have permission to manage the device.

Example

import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';
let wantTemp: Want = {
  bundleName: 'bundleName',
  abilityName: 'abilityName',
};

restrictions.setHdcDisabled(wantTemp, true).then(() => {
  console.info('Succeeded in setting hdc disabled');
}).catch((err: BusinessError) => {
  console.error(`Failed to set hdc disabled. Code is ${err.code}, message is ${err.message}`);
})

restrictions.isHdcDisabled

isHdcDisabled(admin: Want, callback: AsyncCallback<boolean>): void

Checks whether HDC is disabled through the specified device administrator application. This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.ENTERPRISE_RESTRICT_POLICY

System capability: SystemCapability.Customization.EnterpriseDeviceManager

System API: This is a system API.

Parameters

Name	Type	Mandatory	Description
admin	Want	Yes	Device administrator application.
callback	AsyncCallback<boolean>	Yes	Callback invoked to return the result. The value true means HDC is disabled; the value false means the opposite.

Error codes

For details about the error codes, see Enterprise Device Management Error Codes.

ID	Error Message
9200001	the application is not an administrator of the device.
9200002	the administrator application does not have permission to manage the device.

Example

import Want from '@ohos.app.ability.Want';
let wantTemp: Want = {
  bundleName: 'bundleName',
  abilityName: 'abilityName',
};

restrictions.isHdcDisabled(wantTemp, (err, result) => {
  if (err) {
    console.error(`Failed to query is hdc disabled or not. Code is ${err.code}, message is ${err.message}`);
    return;
  }
  console.info(`Succeeded in querying is hdc disabled : ${result}`);
})

restrictions.isHdcDisabled

isHdcDisabled(admin: Want): Promise<boolean>

Checks whether HDC is disabled through the specified device administrator application. This API uses a promise to return the result.

Required permissions: ohos.permission.ENTERPRISE_RESTRICT_POLICY

System capability: SystemCapability.Customization.EnterpriseDeviceManager

System API: This is a system API.

Parameters

Name	Type	Mandatory	Description
admin	Want	Yes	Device administrator application.

Return value

Type	Description
Promise<boolean>	Promise used to return the result. The value true means HDC is disabled; the value false means the opposite.

Error codes

For details about the error codes, see Enterprise Device Management Error Codes.

ID	Error Message
9200001	the application is not an administrator of the device.
9200002	the administrator application does not have permission to manage the device.

Example

import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';
let wantTemp: Want = {
  bundleName: 'bundleName',
  abilityName: 'abilityName',
};

restrictions.isHdcDisabled(wantTemp).then((result) => {
  console.info(`Succeeded in querying is hdc disabled : ${result}`);
}).catch((err: BusinessError) => {
  console.error(`Failed to query is hdc disabled or not. Code is ${err.code}, message is ${err.message}`);
})