How to prohibit copying text in html
htmlMethods to prohibit copying text: 1. Disable selection and right-clicking; 2. Disable text selection; 3. Disable the F12 key; 4. Disable debugging tools.
The operating environment of this tutorial: windows7 system, html5 version, DELL G3 computer.
htmlMethods to prohibit copying text:
1. Disable selection and right-clicking:
Add the following code in the
tag:οncοntextmenu='return false' //Prohibit right-clicking
οndragstart='return false' //Prohibit dragging
onselectstart ='return false' //Prohibited Select
οnselect='document.selection.empty()' //Prohibit selection
οncοpy='document.selection.empty()' //Prohibit copying
onbeforecopy ='return false' // Disable copying
οnmοuseup='document.selection.empty()'
<body leftmargin=0 topmargin=0 οncοntextmenu='return false' οndragstart='return false' onselectstart ='return false' οnselect='document.selection.empty()' οncοpy='document.selection.empty()' onbeforecopy='return false' οnmοuseup='document.selection.empty()'>
2. Disable text selection
*{
moz-user-select: -moz-none;
-moz-user-select: none;
-o-user-select:none;
-khtml-user-select:none;
-webkit-user-select:none;
-ms-user-select:none;
user-select:none;
}At this time, normal selection and copying have been disabled, but if you are a programmer, you still know that you can use the browser's source code viewing and debugging tools to copy content directly from the code. So:
3. Disable the F12 key
//禁用F12
window.onkeydown = window.onkeyup = window.onkeypress = function (event) {
// 判断是否按下F12，F12键码为123
if (event.keyCode == 123) {
event.preventDefault(); // 阻止默认事件行为
window.event.returnValue = false;
}
}
4. Disable debugging tools
var threshold = 160; // 打开控制台的宽或高阈值
// 每秒检查一次
var check = setInterval(function() {
if (window.outerWidth - window.innerWidth > threshold ||
window.outerHeight - window.innerHeight > threshold) {
// 如果打开控制台，则刷新页面
window.location.reload();
}
}, 1000)Related learning recommendations : html video tutorial
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