屏幕键盘Java

Question

I'm developing a java application with some buttons, eventually I need to make a version for touch screen monitors. The problem I have right now is JTextFields are not opening an on-screen keyboard and also closing it is a problem.

If I use windows osk.exe, closing it as a process generates me some problems like it is not closing and also I don't have any control about it.

Code of JTextField not working:

        Gui.jtIdentification.addFocusListener(new FocusListener() {
            Process proc;

            @Override
            public void focusGained(FocusEvent e) {
                try {
                    proc = Runtime.getRuntime().exec("cmd /c C:\\Windows\\System32\\osk.exe");
                } catch (IOException e1) {
                    e1.printStackTrace();
                }
            }

            @Override
            public void focusLost(FocusEvent e){
                proc.destroy();
            }
        });

This piece of code is not functional. How can I solve this? Any java library that makes it more easy and I can take control of it?

Answer 1

Please Make the Process Object as static

static Process proc;

    public static void main(String[] args) throws IOException {
        proc = Runtime.getRuntime().exec("cmd /c C:\\Windows\\System32\\osk.exe");
    }