@ohos.multimodalInput.inputDeviceCooperate (Screen Hopping)

The inputDeviceCooperate module enables two or more networked devices to share the keyboard and mouse for collaborative operations.

NOTE

• The initial APIs of this module are supported since API version 9. Newly added APIs will be marked with a superscript to indicate their earliest API version.
• The APIs provided by this module are system APIs.

Modules to Import

import inputDeviceCooperate from '@ohos.multimodalInput.inputDeviceCooperate'

inputDeviceCooperate.enable

enable(enable: boolean, callback: AsyncCallback<void>): void

Specifies whether to enable screen hopping. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.MultimodalInput.Input.Cooperator

Parameters

Example

try {
  inputDeviceCooperate.enable(true, (error) => {
    if (error) {
      console.log(`Keyboard mouse crossing enable failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
      return;
    }
    console.log(`Keyboard mouse crossing enable success.`);
  });
} catch (error) {
  console.log(`Keyboard mouse crossing enable failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDeviceCooperate.enable

enable(enable: boolean): Promise<void>

Specifies whether to enable screen hopping. This API uses a promise to return the result.

System capability: SystemCapability.MultimodalInput.Input.Cooperator

Parameters

Return value

Example

try {
  inputDeviceCooperate.enable(true).then(() => {
    console.log(`Keyboard mouse crossing enable success.`);
  }, (error) => {
    console.log(`Keyboard mouse crossing enable failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
  });
} catch (error) {
  console.log(`Keyboard mouse crossing enable failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDeviceCooperate.start

start(sinkDeviceDescriptor: string, srcInputDeviceId: number, callback: AsyncCallback<void>): void

Starts screen hopping. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.MultimodalInput.Input.Cooperator

Parameters

Error codes

For details about the error codes, see Screen Hopping Error Codes.

Example

let sinkDeviceDescriptor = "descriptor";
let srcInputDeviceId = 0;
try {
  inputDeviceCooperate.start(sinkDeviceDescriptor, srcInputDeviceId, (error) => {
    if (error) {
      console.log(`Start Keyboard mouse crossing failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
      return;
    }
    console.log(`Start Keyboard mouse crossing success.`);
  });
} catch (error) {
  console.log(`Start Keyboard mouse crossing failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDeviceCooperate.start

start(sinkDeviceDescriptor: string, srcInputDeviceId: number): Promise<void>

Starts screen hopping. This API uses a promise to return the result.

System capability: SystemCapability.MultimodalInput.Input.Cooperator

Parameters

Return value

Error codes

For details about the error codes, see Screen Hopping Error Codes.

Example

let sinkDeviceDescriptor = "descriptor";
let srcInputDeviceId = 0;
try {
  inputDeviceCooperate.start(sinkDeviceDescriptor, srcInputDeviceId).then(() => {
    console.log(`Start Keyboard mouse crossing success.`);
  }, (error) => {
    console.log(`Start Keyboard mouse crossing failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
  });
} catch (error) {
  console.log(`Start Keyboard mouse crossing failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDeviceCooperate.stop

stop(callback: AsyncCallback<void>): void

Stops screen hopping. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.MultimodalInput.Input.Cooperator

Parameters

Example

try {
  inputDeviceCooperate.stop((error) => {
    if (error) {
      console.log(`Stop Keyboard mouse crossing failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
      return;
    }
    console.log(`Stop Keyboard mouse crossing success.`);
  });
} catch (error) {
  console.log(`Stop Keyboard mouse crossing failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDeviceCooperate.stop

stop(): Promise<void>

Stops screen hopping. This API uses a promise to return the result.

System capability: SystemCapability.MultimodalInput.Input.Cooperator

Return value

Example

try {
  inputDeviceCooperate.stop().then(() => {
    console.log(`Stop Keyboard mouse crossing success.`);
  }, (error) => {
    console.log(`Stop Keyboard mouse crossing failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
  });
} catch (error) {
  console.log(`Stop Keyboard mouse crossing failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDeviceCooperate.getState

getState(deviceDescriptor: string, callback: AsyncCallback<{ state: boolean }>): void

Checks whether screen hopping is enabled. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.MultimodalInput.Input.Cooperator

Parameters

Example

let deviceDescriptor = "descriptor";
try {
  inputDeviceCooperate.getState(deviceDescriptor, (error, data) => {
    if (error) {
      console.log(`Get the status failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
      return;
    }
    console.log(`Get the status success, data: ${JSON.stringify(data)}`);
  });
} catch (error) {
  console.log(`Get the status failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDeviceCooperate.getState

getState(deviceDescriptor: string): Promise<{ state: boolean }>

Checks whether screen hopping is enabled. This API uses a promise to return the result.

System capability: SystemCapability.MultimodalInput.Input.Cooperator

Parameters

Return value

Example

try {
  inputDeviceCooperate.getState(deviceDescriptor).then((data) => {
    console.log(`Get the status success, data: ${JSON.stringify(data)}`);
  }, (error) => {
    console.log(`Get the status failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
  });
} catch (error) {
  console.log(`Get the status failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

on('cooperation')

on(type: 'cooperation', callback: AsyncCallback<{ deviceDescriptor: string, eventMsg: EventMsg }>): void

Enables listening for screen hopping events.

System capability: SystemCapability.MultimodalInput.Input.Cooperator

Parameters

Example

try {
  inputDeviceCooperate.on('cooperation', (data) => {
    console.log(`Keyboard mouse crossing event: ${JSON.stringify(data)}`);
  });
} catch (error) {
  console.log(`Register failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

off('cooperation')

off(type: 'cooperation', callback?: AsyncCallback<void>): void

Disables listening for screen hopping events.

System capability: SystemCapability.MultimodalInput.Input.Cooperator

Parameters

Example

// Unregister a single callback.
function callback(event) {
  console.log(`Keyboard mouse crossing event: ${JSON.stringify(event)}`);
  return false;
}
try {
  inputDeviceCooperate.on('cooperation', callback);
  inputDeviceCooperate.off("cooperation", callback);
} catch (error) {
  console.log(`Execute failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

// Unregister all callbacks.
function callback(event) {
  console.log(`Keyboard mouse crossing event: ${JSON.stringify(event)}`);
  return false;
}
try {
  inputDeviceCooperate.on('cooperation', callback);
  inputDeviceCooperate.off("cooperation");
} catch (error) {
  console.log(`Execute failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

EventMsg

Enumerates screen hopping event.

System capability: SystemCapability.MultimodalInput.Input.Cooperator