在 IE 8 中禁用 Ctrl 键

Question

我想禁用 IE 中的 ctrl 键 browser.I 已经尝试了一些使用 javascript 的解决方案但是没有任何效果可以有人帮我找出解决方案

document.onkeydown = function () { 
  if (event.keyCode == 17) alert('Ctrl Key is disabled'); 
};


document.onkeydown = function(e) {
         if (e.altKey && (e.keyCode === 36)) {//Alt+home blocked.
            return false;
        }
        if (e.altKey && (e.keyCode === 70)) {//Alt+f blocked.
            return false;
        }
    };


function hookKeyboardEvents(e) {
    // get key code
    var key_code = (window.event) ? event.keyCode : e.which;

    // case :if it is IE event
    if (window.event)
    {
        if (!event.shiftKey && !event.ctrlKey) {
            window.event.returnValue = null;
            event.keyCode = 0;
        }
    }
    // case: if it is firefox event
    else
        e.preventDefault();
}

window.document.onkeydown = hookKeyboardEvents;

Answer 1

function Disable_Control_C() {
var keystroke = String.fromCharCode(event.keyCode).toLowerCase();

if (event.ctrlKey && (keystroke == 'c' || keystroke == 'v' || keystroke == 'p' || keystroke == 's' || keystroke == 'u')) {
alert("this function is disabled");
event.returnValue = false; // disable Ctrl+C
}
}

<body onkeydown="javascript:Disable_Control_C()">

这就是我在 IE 中对运行所做的...

在 IE 8 中禁用 Ctrl 键

Disable Ctrl key in IE 8

javascript

internet-explorer

disabled-control