How to listen for Ctrl-P key press in JavaScript?

Question

I want to disable print for some webpages. How to wireup cross browser hotkeys (Cntrl + P) to a javascript that will be fired whenever hotkeys are pressed?

@charlieg OP states "I want to disable print for some webpages." — Glen Pierce, Dec 05 '16 at 22:28
This seems to be an XY problem. Although you _can_ catch `ctrl+p`, it is not possible to prevent a user from printing your page., Whether that's by disabling JS on the page, using their browser's console to override your binding, using a browser plugin that prints it regardless of what you catch, by stitching together a bunch of screenshots, or a physical camera, **if the user's eyes can see your content, the user can create a physical copy of your content. Period.** If you're actually looking at how to keep someone from stealing your content, look into DRM and how to secure your IP rights. — AmphotericLewisAcid, Aug 05 '23 at 20:12

score 55 · Accepted Answer · edited Jun 12 '13 at 16:57

55

You can override by capturing the event.

jQuery(document).bind("keyup keydown", function(e){
    if(e.ctrlKey && e.keyCode == 80){
        return false;
    }
});

edited Jun 12 '13 at 16:57

Or A.

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answered Sep 20 '12 at 17:53

Anoop

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This works. FYI, we're trying to override default print keys and learned that Mac's Command key has different `keyCode` values in each browser which get handled by the the libraries below. – Dylan Valade Jun 23 '15 at 14:44
3

should be `$(document).bind("keyup keydown", function (e) { if (e.ctrlKey && e.keyCode === 80) { return false; } return true; });` – Nguyễn Xuân Hoàng Jul 19 '17 at 01:46

score 4 · Answer 2 · answered Sep 20 '12 at 18:05

4

Also a great library is Mousetrap

answered Sep 20 '12 at 18:05

Charlie G

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score 2 · Answer 3 · answered Sep 20 '12 at 17:46

2

Try Keyboard Shortcuts Library.

Instead of just copy pasting it let's havea look at the source and understand how it works.

You can see the source here

answered Sep 20 '12 at 17:46

nana

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How to listen for Ctrl-P key press in JavaScript?

3 Answers3

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