Install Onboard keyboard via your linux distro
Create file Keyboard.sh and make executable
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#!/bin/bash exec onboard
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Create in Resources > Script.KeyboardLinux
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int n = javax.swing.JOptionPane.showConfirmDialog( null, "Keyboard Ready To Load.", JOptionPane.OK_CANCEL_OPTION);
if (n == 0) { Runtime runtime = Runtime.getRuntime(); Process proc = runtime.exec("/home/pos/unicentaopos-3.80/extrascripts/keyboard.sh"); }else{ return; }
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Note: Change above path to where you create and folder for keyboard.sh
Resources > Ticket.Buttons ADD
<button key="button.keyboard" image="img.keyboard" code="Script.KeyboardLinux"/>