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| Path | csiph.com!eternal-september.org!feeder.eternal-september.org!reader01.eternal-september.org!.POSTED!not-for-mail |
|---|---|
| From | Martin Gregorie <martin@mydomain.invalid> |
| Newsgroups | comp.lang.java.programmer |
| Subject | How can I read individual keystrokes? |
| Date | Sun, 5 Apr 2020 00:17:36 -0000 (UTC) |
| Organization | A noiseless patient Spider |
| Lines | 26 |
| Message-ID | <r6b830$hra$1@dont-email.me> (permalink) |
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I have a need to read individual key presses as they are made. I'm developing this stuff under Linux with OpenJava 1.8 and would prefer a portable Java solution if that's possible. I have a working solution, but its ugly. A small C program captures the one or more characters emitted as a key is pressed and sends them individually to my Java application over a local network session. I've also tried using the Reader.read() method of the Reader instance returned by calling Console.reader() but that uses line buffering internally. As a result the Java code doesn't get sent anything until I hit RETURN, when all the characters typed since the last RETURN are sent, followed by the LF, so is of no use here. Also, there's a good chance that the C program is using OS-specific features to let it capture individual keystrokes. I have a feeling that I'm missing something obvious and so would appreciate it if any of you can point me in the direction of a pure Java way to capture individual key presses. -- Martin | martin at Gregorie | gregorie dot org
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How can I read individual keystrokes? Martin Gregorie <martin@mydomain.invalid> - 2020-04-05 00:17 +0000
Re: How can I read individual keystrokes? Eric Sosman <esosman@comcast-dot-net.invalid> - 2020-04-04 20:38 -0400
Re: How can I read individual keystrokes? Arne Vajhøj <arne@vajhoej.dk> - 2020-04-04 22:04 -0400
Re: How can I read individual keystrokes? Martin Gregorie <martin@mydomain.invalid> - 2020-04-05 11:22 +0000
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