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I am writing a dictionary program with requires switching keyboard layout.

I have kde set up that ctrl-alt-k switches layout.

I have tried simulating the ctrl-alt-k keypress from the program but this doesn't seem to do anything.

try {
  Robot r = new Robot();
  r.keyPress(KeyEvent.VK_CONTROL);
  r.keyPress(KeyEvent.VK_ALT);
  r.keyPress(KeyEvent.VK_K);
  r.keyRelease(KeyEvent.VK_K);
  r.keyRelease(KeyEvent.VK_CONTROL);
  r.keyRelease(KeyEvent.VK_ALT);
} catch (Exception e) {
e.printStackTrace();
}

Why doesn't this work? I have managed to simulate ctrl-c with similar code but this does nothing.

Improve this question
2
  • Try putting a delay of 200 milliseconds between the press and the release. Commented Apr 3 at 5:15
  • I have already tried that and it still doesn't work. Commented Apr 3 at 14:10
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