LrJposChannel.sendKeepAlive

Sends a high-level keep-alive message (zero length).

public static void sendKeepAlive() throws IOException

Return values

This function does not return any values.

Example

Copy code
public int init() throws Throwable {
        
        AsciiPackager2003 pack = new AsciiPackager2003();
        LrJposChannel.initChannel(LrJposChannel.ChannelType.ASCIIChannel);
        LrJposChannel.setHost("your server's host name");
        LrJposChannel.setPort(8000);
        LrJposChannel.setPackager(pack);
        LrJposChannel.connect();
        
        if (LrJposChannel.isExpectKeepAlive()) {
            LrJposChannel.sendKeepAlive();
        }
        
        return 0;
}