OnScreen keyboard open for Pos system on focus

I am using electron react app and for pos system. I am making it open I have used the code but does not close once the keyboard is open const exec = require('child_process').exec;

function showTouchKeyboard() {
    exec('start /d "C:\\Program Files\\Common Files\\microsoft shared\\ink" TabTip.exe',
    (error, stdout, stderr) => {
        if (error) {
            console.error(error);
            return;
        }
    });
}

Please provide an appropriate solution for this.