Device.Net | A C # cross platform connected device framework | Change Data Capture library

by MelbourneDeveloper C# Version: Current License: MIT

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kandi X-RAY | Device.Net Summary

Device.Net is a C# library typically used in Utilities, Change Data Capture applications. Device.Net has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Don't waste your time with the obscurities of connecting to devices and learning their protocol. I've done this plenty of times and I can fast track you to building an app or getting something to work.

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Quality

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Support

Device.Net has a low active ecosystem.

It has 439 star(s) with 91 fork(s). There are 25 watchers for this library.

It had no major release in the last 6 months.

There are 54 open issues and 130 have been closed. On average issues are closed in 167 days. There are 2 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of Device.Net is current.

Quality

Device.Net has 0 bugs and 0 code smells.

Security

Device.Net has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

Device.Net code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

Device.Net is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

Device.Net releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

It has 81843 lines of code, 0 functions and 384 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

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Device.Net Key Features

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Device.Net Examples and Code Snippets

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Community Discussions

Trending Discussions on Device.Net

Read HID device input, e.g. from a keyboard or barcode scanner

QUESTION

Read HID device input, e.g. from a keyboard or barcode scanner

Asked 2022-Mar-28 at 11:33

So I know this question has been asked many times, but I cannot seem to find a proper answer.

Does anyone know how to read from a HID device from any C#/.NET (.NET 6) application?

I've tried several packages/projects, such as:

These projects are focussed on fetching data from all keyboards and checking where the data came from.

Now what I'm really looking for is a library/way to receive data from these devices without needing a windows forms handle or even focus to the application. It should work in such a way that I can simply get the data from the device without requiring any user interaction or focus on the application, so that it would work from a .NET console application.

One really interesting library I found is the HID.NET library (https://github.com/MelbourneDeveloper/Device.Net), one of the issues with this library is that I get the same issue as this guy (https://github.com/MelbourneDeveloper/Device.Net/issues/88). So it states that access is denied to open the device for reading.

This means I cannot use this library either.

Therefore I felt like maybe someone on here could help me further. I would like any direction in which I could go to get further with this issue.

Many thanks in advance.

...

ANSWER

Answered 2022-Mar-28 at 11:33

Very curiously, Microsoft chose to open these sort of devices in so called "Exclusive mode", see: https://docs.microsoft.com/en-us/windows-hardware/drivers/hid/hid-architecture#hid-clients-supported-in-windows

This states that these devices are opened in Exclusive mode:

Mouse class driver and mapper driver
Keyboard / Keypad class driver and mapper driver
External Pen Device
Integrated Pen Device
Touchscreen
Precision Touchpad (PTP)

About this exclusive mode, they state the following:

In the preceding table, the access mode for input HID clients is Exclusive to prevent other HID clients from intercepting or receiving global input state when they are not the target recipient of that input. Therefore, for security reasons RIM (Raw Input Manager) opens all such devices exclusively.

If device is opened in Exclusive mode by RIM (Raw Input Manager) user can still open HID device interface without requesting read and write permissions and obtain HID device information via HIDClass support routines (HidD_GetXxx).

This means that what I'm trying to do, so receive the USB-HID packages shall never(?) be allowed and is therefore not an option. In order to achieve such functionality as I desire, switching drivers to custom HID or COMport can be an option.

Source https://stackoverflow.com/questions/71369979

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install Device.Net

You can download it from GitHub.

Support

This project needs funding. Please sponsor me here so that I can contribute more time to improving this framework. This project also needs unit tests, bug fixes and work towards more platforms. Please read this. This framework uses the MIT license. I won't sue you, or your business if you use this for free. If you are developing software for free, I don't expect you to sponsor me. However, if your business makes more than USD 100,000 per year and your software depends on Device.Net, I expect your business to make a serious contribution via sponsorship.

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