Patent ID: 11954305
Assignee: nan
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method of an interactive flat panel, comprising:
starting a slide play mode of the interactive flat panel;
displaying a play mode interface of a slide document and an interface of an annotation application on a display screen of the interactive flat panel, wherein the interface of the annotation application is a transparent layer covering the play mode interface of the slide document, and the play mode interface plays a first image of the slide document;
receiving, via a touch sensing device of the interactive flat panel, a touch operation directed at the interface of the annotation application, wherein the touch operation is a sliding operation of one or more fingers on the interface of the annotation application, and the sliding operation includes one of a horizontal sliding action or a vertical sliding action relative to a border of the interface of the annotation application;
determining a number of fingers that perform the sliding operation;
responding to determining that the sliding operation is a single-finger sliding operation corresponding to an annotation type operation, triggering the annotation application to annotate the slide document on the interface of the annotation application, wherein annotating the slide document comprises controlling, via an Android mainboard of the interactive flat panel, the display screen of the interactive flat panel to display a sliding trajectory corresponding to the sliding operation, wherein the first image of the slide document played through the play mode interface remaining as it is; and
responsive to determining that the sliding operation is a multi-finger sliding operation corresponding to a non-annotation type operation,
preventing the annotation application from responding to the sliding operation so that the display screen does not display the sliding trajectory corresponding to the multi-finger sliding operation on the interface of the annotation application; and
controlling, via the Android mainboard of the interactive flat panel, the display screen to display a second interface of the slide document to perform page-turning of the slide document if the multi-finger sliding operation is a sliding operation of at least two fingers on the interface of the annotation application at the same time, and the multi-finger sliding operation is performed from top to bottom or from right to left relative to the interface of the annotation application.