Windows 8.1 seamlessly integrates new device protocol API

In Microsoft's official Windows App Builder blog, Microsoft showed an "exciting" improvement in Windows 8.1. Benefiting from the support of several innovative device protocol APIs, Windows 8.1 opens up the possibility of accessing a large number of devices. Microsoft said that the most exciting improvement is that the Windows 8.1 preview release the valve for accessing huge amounts of equipment. Although Windows 8 already supports certain devices such as printing, sensors, geolocation, etc., access to the device is limited to those dedicated applications. In Windows 8.1, this has changed significantly.
“We support several innovative APIs—— such as Point of Sale (POS), 3D printing and scanning, through the device protocol API, open the gate for accessing other huge devices.

 Device Protocol APIs> is a new feature in Windows 8.1 that allows application developers to create an app via USB, HID, Bluetooth, Bluetooth Smart and WiFi Direct And other protocols for communication. The behind-the-scenes working principle is a simple process.

Developers need to use metadata to identify a device and open a communication channel for the device. Opening a channel means that the user has granted a single access and the app can communicate with the device.
Microsoft said: "Windows 8.1 Preview provides a rich support for applications and devices to communicate. By seamlessly integrating standard devices such as printers and sensors, and even custom devices into the application, users can enjoy fast and smooth device interactions.