Multi-two-dimensional code reading device confirmation and code value processing method

Abstract

The invention discloses a multi-two-dimensional code reading device confirmation and code value processing method. The method comprises the following steps: S1, enumerating all HID devices to obtain device basic information; S2, filtering out non-keyboard type equipment according to the equipment type; S3, obtaining VID, PID, equipment serial number and other equipment feature information of the keyboard type equipment; S4, capturing code scanning information of a plurality of code scanning devices, and sending device feature information, a code scanning original text, a request type and the like to a code text processing program; and S5, outputting information fed back by the code text processing program to a display area such as a cursor. The method supports simultaneous work of multiple devices, does not distinguish application scenes, and is applicable to multiple devices through one-time development.

Description

technical field [0001] The invention relates to a multi-dimensional code reading device confirmation and code value processing method. Background technique [0002] QR codes are currently widely used in real life and can be read by QR code reading devices from different manufacturers. Apps such as WeChat and Alipay can also recognize QR codes. In actual application scenarios, some information systems need to obtain the original information of the QR code, while others are processed information, and need to be compatible with different devices. [0003] Taking the application of hospital information system as an example, the electronic health card provides real-time information for application scenarios such as appointment registration and medical treatment. The code scanning device reads the QR code data and feeds it back to the code text processing program. Validity, and return the verified information to the client. The general two-dimensional code scanning device is a k...

AI Technical Summary

Problems solved by technology

In the existing solutions, there are major shortcomings: the first, second, and third scenarios cannot distinguish devices, and when there are multiple devices, it may happen that you expect to use a certain scanning device, but get the scanning results of other devices; The second scenario is not universal, and third-party integrators need a lot of development; because many third-party manufacturers need to scan the original text to obtain the information they need, and each manufacturer needs to integrate, it is costly and time-consuming

In the third case, the processing of keyboard messages may fail. For example, when multiple QR code reading devices read QR codes at the same time, there will be data overlap, and the result is unpredictable.

In the fourth case, excessive reliance on third-party manufacturers does not support newly connected devices

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