Communicating with Human Interface Devices such as Alphanumeric display, Bar Code Reader, Sensors, Volume control on Speakers/Headsets becomes a primary use case for real-world, Cross-platform applications. Do you spend more time in building libraries to communicate with Human Interface Devices for your Delphi/C++ FireMonkey applications? WINSOFT Provides a powerful library to get the job done. It uses the standard Windows HID API.
- Able to notify on Human Interface Devices arrival and removal.
- Can retrieve all the HID devices information available in the System.
- Flexible to getting/set Feature Report for the HID devices.
- Works with Windows 32/64-bit applications.
Versions Supported: /C++ Builder XE2 – C++ Builder 10.4.1 Sydney
Platforms: Windows, OS X, Android, and iOS;
Steps to Download and use the Native HID Library:
- Download Native HID for FireMonkey and Unzip the file.
- Nahttps://winsoft.sk/nathid.htmvigate to the Library folder for different Versions. e.g) Delphi104-Win32.
- Read the Readme.txt file to know about features and copyright information.
- Create a Windows VCL Application and use FHid.pas in the uses section.
- Include the Library folder into Project->Options->Delphi Compiler->Search Path.
- Compile and check for using the library.
NativeHID Download and Use for FireMonkey demo:https://www.youtube.com/embed/qx5A1zm9WkM?feature=oembed
Key HID concepts:
Report -Reports are the actual data that is exchanged between a device and a software client.
- Input Report – Data sent from the Human Interface Devices to the application, typically when the state of a control changes.
- Output Report – Data sent from the application to the HID device, for example to the LEDs on a keyboard.
- Feature Report -Data that can be manually read and/or written, and are typically related to configuration information.
Report Descriptor – The Report Descriptor describes the format and meaning of the data that the device supports.
UsageTables – Contain a list with descriptions of Usages, which describe the intended meaning and use of a particular item described in the Report Descriptor. For example, a Usage is defined for the left button of a mouse. USB-IF WorkGroup Publishes the Usage Tables. See USB-IF HID Specifications.