1、屏蔽f12
document.onkeydown = function(){
if(window.event && window.event.keyCode == 123) {
alert("F12被禁用");
event.keyCode=0;
event.returnValue=false;
}
if(window.event && window.event.keyCode == 13) {
window.event.keyCode = 505;
}
if(window.event && window.event.keyCode == 8) {
alert(str+"\n请使用Del键进行字符的删除操作!");
window.event.returnValue=false;
}
}
2、屏蔽右键菜单
document.oncontextmenu = function (event){
if(window.event){
event = window.event;
}
try{
var the = event.srcElement;
if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")){
return false;
}
return true;
}
catch (e){
return false;
}
}
3、屏蔽选中
document.onselectstart = function (event){
if(window.event){
event = window.event;
}
try{
var the = event.srcElement;
if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")){
return false;
}
return true;
}
catch (e) {
return false;
}
}
4、屏蔽复制
document.oncopy = function (event){
if(window.event){
event = window.event;
}
try{
var the = event.srcElement;
if(!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")){
return false;
}
return true;
}
catch (e){
return false;
}
}
5、屏蔽剪贴
document.oncut = function (event){
if(window.event){
event = window.event;
}
try{
var the = event.srcElement;
if(!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")){
return false;
}
return true;
}
catch (e){
return false;
}
}
6、屏蔽粘贴
document.onpaste = function (event){
if(window.event){
event = window.event;
}
try{
var the = event.srcElement;
if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")){
return false;
}
return true;
}
catch (e){
return false;
}
}