在Silverlight Web应用程序中禁用打印屏幕和Ctrl键 [英] Disable print screen and ctrl keys in silverlight web application
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问题描述
hi ..
我需要在我的Silverlight Web应用程序中禁用打印屏幕和Ctrl键.
如果用户按下打印屏幕或ctrl键，则需要传递一条消息按键已禁用".
怎么做..
需要您的建议..
问候
gopal.s
hi..
i need to disable the print screen and ctrl keys in my silverlight web application.
if the user press the print screen or ctrl keys i need to pass a message "the keys are disabled".
how to do this..
need ur suggestions..
regards
gopal.s
推荐答案
您想在服务器端还是客户端进行编码?
you wanna code in server side or client side ?
朋友，请尝试以下代码:
Friend, try the code below:
<html><head>
<script language="JavaScript"><!--
function clp_clear() {
var content=window.clipboardData.getData("Text");
if (content==null) {
window.clipboardData.clearData();}
setTimeout("clp_clear();",1000);}
--></script></head>
<body onload='clp_clear()'>
<center><font color=darkgreen><font size=3><p>
...Press the [PrintScreen] or the [Alt+PrintScreen] key and try to paste the content in your favorite Picture Editor (Paint,...)...<br>
...Select text and try to paste the content in your favorite Text Editor (Notepad,...)...<p><font color=black><font size=2>
This small script clears the clipboard at runtime and disables screen capture process...but does not disable text selection..</center>
<hr>for more Ambesha blog, please visit <a href="http://ambeshdevloper.blogspot.com/">http://ambeshdevloper.blogspot.com/</a>[<a href="http://ambeshdevloper.blogspot.com/" target="_blank" title="New Window">^</a>] </body></html>
如果您需要任何特定的...或服务器端代码，请告诉我，但是在此任务的最佳实践中，客户端脚本是合适的. (请对此回复评分)
谢谢，
Ambesha
Please let me know if you want any specific...or server side code but in best practice for this task client scripting is appropriate. (please rate this reply)
Thanks,
Ambesha
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