javascript detect if ctrl key is down

 

 

 

 

Demonstrates a technique for detecting the shift, ctrl and alt keys: The keydown listener sets shiftMode to true when event.keyCode 16.Label: Detecting The Shift/Ctrl/Alt Keys. Report to us error of this JavaScript. Home Forums Scripting Javascript Tutorials Javascript: Detect Ctrl A in keyup event. Tagged: javascript, jquery.But the second one, there will be only one key pressed so both statements cant be true together: If you last released the ctrl, then ctrlKey is true but keyCode 65 I want to detect the Control A event in input. I can find the Control A event, but the function is continuing even after return false.But the second one, there will be only one key pressed so both statements cant be true together: If you last released the ctrl, then ctrlKey is true but keyCode 65 How can I detect whether the alt/option key is down in GTK on Mac OS X?In the javascript Event object, there are some boolean values to check if modifier keys are pressed: ctrlKey: CTRL key. altKey: ALT key. altLeft: ALT left key. So I set out to create a small Java Script that disables any ctrl key combination (e.g. ctrl v, ctrl c, ctrl a, etc.).