Is it possible in web page on Internet Explorer to detect if the Google Earth application is installed on the client machine using Javascript?
This page is part of a Trusted Site on an intranet.
Update: detecting it via creating an ActiveX object or any IE specific javascript is fine.
I don't think this works using Javascript. I'm pretty sure Google Earth doesn't install a plugin into Internet Explorer (or any other browser for that matter). So you can forget Javascript.
As you are on a trusted site you may try using ActiveX. I'm not into ActiveX but maybe there's a way to have a deeper look into the client's system.
yes it is possible - on your html page you call the init function for the API
<body onload="init()">
bla bla bla
</body>
In a JavaScript, when creating a GE instance for your page, you provide a function pointer for a callback function called on errors
function init()
{
if (ge == null)
{
google.earth.createInstance("content", initCallback, failureCallback);
}
}
finally - in that function you check the error code
function failureCallback(errorCode)
{
if (errorCode == "ERR_CREATE_PLUGIN") {
alert("Plugin not installed")
} else {
alert("Other failure loading the Google Earth Plugin: " + errorCode);
}
}
look at this for a complete working code.
Good luck MikeD