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Hello guys,
With this windows 7 gadget, I need access to a local file (binary)
in order to calculate something and output some outcomes.
I wonder how I can access file using javascript, I've gone over
a lot of articles that javascript is restricted by a sandbox.
Are there any good ways that I can read the data out of a local file?
BTW, is it also possible to access an embedded database with a gadget?
Thanks a lot, have a nice day!
Jack
When I pack it up into a .gadget file and loaded into the sidebar (3rd party tool) of windows 7.
I can see "Hello World" to appear. But no alert boxes came up. Why?
The html page is displayed correctly in IE10.
Code:<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Hello World</title>
<style type="text/css">
body
{
margin: 0;
width: 130px;
height: 75px;
font-family: verdana;
font-weight: bold;
font-size: small;
}
#gadgetContent
{
margin-top: 20px;
width: 130px;
vertical-align: middle;
text-align: center;
overflow: hidden;
}
</style>
<script type="text/jscript" language="jscript">
var fileName = "D:/money.dat";
// --------------------------------------------------------------------
// Initialize the gadget.
// --------------------------------------------------------------------
function init()
{
getDat();
display();
}
function getDat()
{
var fso, f1;
fso = new ActiveXObject("Scripting.FileSystemObject");
try
{
ts = fso.OpenTextFile(fileName, 1, false, 0);
var name = "Jacky";
s = ts.Read(10);
alert(name);
alert(s);
}
catch(e)
{
System.Debug.outputString(e);
}
}
functon display() {
}
</script>
</head>
<body onload="init()">
<g:background id="imgBackground">
<span id="gadgetContent">Hello World!</span>
</g:background>
</body>
</html>
Alerts are disabled in Gadgets: http://msdn.microsoft.com/en-us/maga...63370.aspx#S10
Mind you, Gadgets have been discontinued ( http://windows.microsoft.com/en-gb/windows/gadgets ) so you won't be able to use them beyond Windows 7.
Having a quick play with this, assuming you're reading the first line from your .DAT file, this script section should work:
Code:<script type="text/jscript" language="jscript">
var filename = "D:\\Money.dat";
function init(){
var updater = setInterval(readfile, 5000);
}
function readfile(){
var fso, f;
var ForReading = 1, ForWriting = 2;
fso = new ActiveXObject("Scripting.FileSystemObject");
f = fso.OpenTextFile(filename, ForReading);
document.getElementById("gadgetContent").innerHTML=f.ReadLine();
f.Close();
}
</script>