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    <p>Yes and no: yggdraa's code of Mar 13 worked fine on Windows but failed on Linux.</p> <p>There may be no universal solution for Linux at all: no such things as Windows' GetKeyboardLayout() and ActivateKeyboardLayout() there. Some configuration-dependent hacks might be possible though, such as parsing the output of xset (<a href="http://forums.debian.net/viewtopic.php?f=6&amp;t=82235" rel="nofollow">details here</a>) and forcing the layout, say, on key up/down.</p> <p>In the example above, the input selection code in eventDispatched() gets called too late - when the OS keyboard has already switched back to the system-default US.</p> <p>A few brute force attempts didn't work either: myParticularJField.setLocale(myForcedLocale) from the field's focus handler gets immediately undone upon the first key press. Same for forcing the top-level (JFrame/JDialog) Locale.</p> <p>Update:</p> <p>We have only Windows in production, so making this work under Linux is impractical: too much effort.</p> <p>Just in case, a byproduct. This correctly determines which layout is currently active: default or alternative ("local"). It can't distinguish among several alternative layouts:</p> <pre><code>import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class LinuxKeyboardLayoutStatus { public enum LayoutType { DEFAULT, LOCAL } public LinuxKeyboardLayoutStatus.LayoutType getCurrentKeyboardLayoutType() throws IOException, InterruptedException { String[] command = createCommand(); Process p = Runtime.getRuntime().exec(command); BufferedReader r = new BufferedReader(new InputStreamReader(p.getInputStream())); String l = r.readLine(); r.close(); p.waitFor(); return decodeLayoutType(l); } protected String[] createCommand() { return new String[] { "/bin/sh", "-c", "xset -q | grep LED | awk '{ print $10 }' | cut -c5" }; } protected LinuxKeyboardLayoutStatus.LayoutType decodeLayoutType(String commandOutput) { return commandOutput != null &amp;&amp; !commandOutput.equals("0") ? LayoutType.LOCAL : LayoutType.DEFAULT; } } </code></pre> <p>Update:</p> <p>In Ubuntu, the change back to the default layout happens at the X window level (DBus events). A workaround: to turn off separate layouts for each window: Settings => Keyboard => Layouts, uncheck "Separate layout for each window."</p>
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