Method for invoking capability of another device, electronic device, and system

An electronic device, comprising:

• at least one processor;
• and
• one or more memories coupled to the at least one processor and configured to store programming instructions that, when executed by the at least one processor, cause the electronic device to:
• detect a first operation of a user within a predetermined interface context of the electronic device, the predetermined interface context comprising at least a home screen or a lock screen interface;
• determine, based on the predetermined interface context and the first operation comprising a predetermined operation, that the user intends to process first image information displayed on a second electronic device;
• in response to determining that the user intends to process the first image information displayed on the second electronic device, send request information to the second electronic device, wherein the request information requests the second electronic device to capture the first image information currently displayed on the second electronic device;
• receive the first image information sent by the second electronic device, wherein the first image information is sent by the second electronic device in response to receiving the request information from the electronic device;
• and
• process the first image information by using a first function comprising a first sub-function and a second sub-function, wherein the electronic device is configured to selectively process the first image information using one of the first sub-function and the second sub-function based on content of the first image information.