Control method and device for simulating line-by-line automatic scrolling display of USB HID mouse

Abstract

The invention provides a control method and device for simulating line-by-line automatic scrolling display of a USB HID mouse. The method comprises the steps of: activating a line-by-line scrolling protocol of a USB HID mouse when a line-by-line scrolling signal is received; obtaining the number of line-by-line scrolling signal counting times, and when the number of line-by-line scrolling signal counting times is an odd number, judging whether a line-by-line scrolling direction signal is received or not; when a line-by-line scrolling direction signal is received, obtaining the number of line-by-line scrolling direction signal counting times; obtaining the current line-by-line scrolling speed according to the number of line-by-line scrolling signal counting times and the number of line-by-line scrolling direction signal counting times; and sending the current line-by-line scrolling speed data to an upper computer, and controlling the upper computer to execute a line-by-line scrolling function according to the current line-by-line scrolling speed and the first scrolling direction. Therefore, automatic line-by-line scrolling operation is achieved, plug and play is achieved, the speedis controllable, quick stopping and quitting is achieved, line-by-line scrolling can be achieved, the effect of page-by-page scrolling can be achieved, the operation is simple, and the implementationis easy.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a control method for realizing the automatic line-by-line scrolling display of a simulated USB HID (Universal SerialBus Human Interface Device) mouse, and a control method for realizing the line-by-line automatic scrolling display of a simulated USB HID mouse device, a computer device, and a non-transitory computer-readable storage medium. Background technique [0002] With the application of electronic whiteboard products in the field of education more and more widely, its simple and convenient operation and efficient interactivity have attracted more and more attention from users. Electronic whiteboard products on the market are mainly divided into the following four categories: computer + projection + whiteboard + light pen, computer + projection + whiteboard + infrared laser screen + touch, computer + large-size LCD screen + infrared frame + touch and computer +Lar...

AI Technical Summary

Problems solved by technology

[0004] The first method is to use the keyboard, that is, to use the up and down arrow keys of the keyboard. The defect of this method is that although the first and second types of products are equipped with keyboards, the user (teacher) still needs to go to the central control The keyboard is frequently operated near the desk, the teacher is bound by the keyboard operation, and there is no keyboard hardware configuration in the third and fourth products, so the interactive experience in this way is very poor

[0005] The second method is to use the mouse wheel, that is, to use the mouse wheel to scroll up and down. The defect of this method is: although the first type of product and the second type of product are equipped with a mouse, a mouse pad and a desktop where the mouse pad is placed, its current All optical mice are used. The principle of optical mouse has high requirements on the flatness and cleanliness of the mouse pad, and the dust in the applicable place or the chalk dust in the classroom will affect the use of the optical mouse. When the user (teacher) uses When the mouse encounters problems such as insensitivity, the interactive experience will be greatly reduced, which will bring additional unnecessary troubles to the user (teacher), and at the same time, the user (teacher) will be bound by frequent mouse operations; while in the third category of products And the fourth type of product has no mouse configuration, so the interactive experience in this way is very poor

[0006] The third way is to use a PPT presenter, which is to operate by operating a PPT (Microsoft Office PowerPoint, Microsoft Office Presentation) presenter with the function of turning the screen up and down. The defect of this method is that: some presenters only have PgUp (Page Up, previous page) and PgDn (page down, next page) functions cannot realize line-by-line scrolling display function, and some page presenters have up / down (up / down) function buttons, which can scroll line by line display, but it is still necessary to press the function key frequently to achieve the purpose of scrolling display line by line, which still cannot reduce the operating burden of the user (teacher)

However, the disadvantage of this method is that the scrolling speed is difficult to control, and it is easy to get out of control, causing the scrolling to be too fast; or when you want to slow down the scrolling speed, the screen accelerates to scroll in the opposite direction; it is particularly easy to be ignored. The learner (teacher) will forget to exit the scrolling function at the end (by clicking the middle mouse button), at this time the screen will accelerate the scrolling in the opposite direction of the mouse dragging, and the screen content display is out of control

[0008] The fifth method is to use the vertical scroll bar of the window, that is, to control the vertical scroll bar up and down by operating the document or the software’s own vertical scroll bar. The defect of this method is: in the first type of product and the second type of product, the screen The operation accuracy of the edge deviates too much, that is, the deviation between the physical position of the operation and the coordinate position mapped in the system is large, and the vertical scroll bar cannot be accurately operated; in the third and fourth types of products, although they can be directly operated, but The user (teacher) is still bound around the display screen by frequent operations, and the user (teacher) cannot walk among the students to interact; if the third type of product and the fourth type of product are installed on a mobile stand, the display screen will be on the Shake back and forth to a certain extent, the operation is inaccurate, and it is more likely to cause misoperation

Either way, the hands of the user (teacher) cannot be liberated, and good interactive teaching cannot be achieved

Images