scan subnet for devices

type: dat_xxxx Tw_uint16 MSG, // Message ID: msg_xxxx Tw_memref pdata // pointer to data ); 1. Open DSM (data source Manager: data source Manager) Twain is a data source management program. The application must first use the msg_opendsm message to open the data source Manager. You need to specify a window handle. The application should process the twain message (msg_processevent) in the message loop of the window ). 2. Select DS (Data Source: Data Source) Because a system may have multiple Twai

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.I. What is Bluetooth?1.1 Buletooth is currently the most widely used wireless communication protocol1.2 Mainly for short-range equipment communication (10m)1.3 is commonly used to connect headphones, mouse and mobile communication devices.Two. Bluetooth-related APIs2.1 Bluetoothadapter:Represents a local Bluetooth adapter2.2 BluetoothdeviceRepresents a remote Bluetooth deviceThree.

*/ @Override public void onScanSuccess(String barcode) { //TODO 显示扫描内容 }Detailed code See: Https://github.com/czhzero/scangonNote the point:1. Some models cannot determine the external keyboard information, such as Samsung.private void hasScanGun() { Configuration cfg = getResources().getConfiguration(); return cfg.keyboard != Configuration.KEYBOARD_NOKEYS;}Samsung mobile Cfg.keyboard The return value is equal to Configuration.keyboard_nokeys.Therefore, for better comp

1. What is Bluetooth )? 1.1 buletooth is the most widely used wireless communication protocol. 1.2 mainly for short-range device communication (10 m) 1.3 is usually used to connect headphones, mouse, and mobile communication devices. 2. Bluetooth-related APIs 2.1 define thadapter: Represents the local Bluetooth adapter 2.2 define thdevice Represents a remote Bluetooth device 3. Scan the paired blueto

1. Modify the visibility of the local Bluetooth device 2. Scan the available Bluetooth devices around Eg: I. configuration file adroidmanifest. xml: Ii. layout file: Main. xml: 3. mainactivity: Import android. app. activity; import android. bluetooth. export thadapter; import android. bluetooth. export thdevice; import android. content. broadcastreceiver; import android. content. context; import andro