International Business Machines Corporation

Lenovo (beijing) Limited

Beijing Lenovo Software Ltd.

Qiang Song

Peng Hui Jiang

Si Bin Fan

Jianguo Li

Chao Yuan Huang

Kai Cheng

Ming Chi

Xiangbo Lv

Micky Wei-Te Chiang

A projection method, a projection apparatus and an electronic device are provided. The method may include: acquiring a target content to be projected in an electronic device; determining a projection parameter for the target content; adjusting a beam output mode of a light path changing module for projection beams of the target content based on the projection parameter; and based on the beam output mode, projecting, via the light path changing module, the projection beams of the target content into a first region of a projection carrier located away from the electronic device by a first distance, where the area of the first region varies with the beam output mode. With the projection method, the projection apparatus and the electronic device in the application, the area of the projection region can be adjusted easily, so that multiple users can use the electronic device to watch the projection conveniently.

Projection method, projection apparatus and electronic device

According to an embodiment of the present disclosure, it is determined whether a delta index is beneficial based on the difference between a first version and a second version of a document, wherein the first version is associated with a first index comprising a plurality of keywords appeared in the first version. The delta index is generated for the difference between the first and second versions if the delta index is beneficial, wherein the delta index comprises a first section including information about one or more keywords affected by the difference and the information about the positions of the affected keywords.

Generation and use of delta index

Embodiments of the disclosure may provide a method and apparatus of testing a computer program. The method may include acquiring first display data of a character region in a Graphical User Interface (GUI) of the computer program. The method may also include reducing display size setting of an original character string associated with the character region. The method may also include acquiring second display data of the character region in refreshed GUI. The method may further include generating a message indicating character truncation when there is a difference other than actual display size of character between the first display data and the second display data. With the technical solution provided by embodiments of the disclosure, character truncation existing in a GUI may be automatically detected.

Method and apparatus of testing a computer program

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Beijing, China

Qiang Song