Control state control method and device, and network video recorder

Abstract

The application discloses a control state control method and device and a network hard disk video recorder, and relates to the field of human-computer interaction. The method determines a corresponding target display state according to a preset mapping relationship by monitoring a state parameter value associated with a target control; when the target display state is inconsistent with a current state, a target pixel change region is determined from a change pixel region based on a region mapping relationship, and a target filling region is located in the region according to a basic color pixel marking rule, and the rest of the target pixel change region remains unchanged; corresponding to-be-filled pixel data is obtained from a pre-stored pixel data set and filled into the target filling region, and control rendering is completed. The application does not need to store multiple sets of independent bitmap resources for the full state of the control, can reduce the Flash storage and running memory overhead of an embedded terminal, is suitable for a low-resource hardware scene, and at the same time, the design and adaptation process of multiple sets of materials is omitted, and the interface development iteration cycle is effectively shortened.

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