Question

164

Keycode for Print Screen (44 is not working)

rated 0 times [ 167] [ 3] / answers: 1 / hits: 15151 / 9 Years ago, wed, august 5, 2015, 12:00:00

So I want to test if visitors of my site have pressed Print Screen button.

As much as I was looking for, there were no information to be found how to do it. All I found was, that ir is supposed to be keyCode == 44.

With all the other buttons I tried there was no problem.

Where is my mistake?

Here's similar, working code for enter button:

window.addEventListener(keydown, checkKeyPressed, false);



function checkKeyPressed(e) {

    if (e.keyCode == 13) {

        alert(The 'enter' key is pressed.);

    }

}

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devonw

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answered 9 Years ago jazmyne · Accepted Answer

window.addEventListener(keyup, function(e) {

  if (e.keyCode == 44) {

    alert(The 'print screen' key is pressed);

  }

});

Note keyup and not keydown.

Honestly, I have no idea why this works and not the other, but I think it may have something to do with the OS intercepting it on press and (somehow?) blocking the event.