Is it possible to find out in what browser version a browser hosted application (XBAP) runs (eg. IE6, IE7 or IE8)? I want to find out the browser version from within the XBAP.
With some help from a Microsoft forum I was led into a direction that finally works. Below a proof of concept in C++.NET (.
using namespace System::Windows::Forms;
[STAThread]
String^ GetBrowserVersion() {
String^ strResult = String::Empty;
WebBrowser^ wb = gcnew WebBrowser();
String^ strJS = "<SCRIPT>function GetUserAgent() { return navigator.userAgent; }</SCRIPT>";
wb->DocumentStream = gcnew MemoryStream( ASCIIEncoding::UTF8->GetBytes(strJS) );
while ( wb->ReadyState != WebBrowserReadyState::Complete ) {
Application::DoEvents();
}
String^ strUserAgent = (String^)wb->Document->InvokeScript("GetUserAgent");
wb->DocumentStream->Close();
String^ strBrowserName = String::Empty;
int i = -1;
if ( ( i = strUserAgent->IndexOf( "MSIE" ) ) >= 0 ) {
strBrowserName = "Internet Explorer";
} else if ( ( i = strUserAgent->IndexOf( "Opera" ) ) >= 0 ) {
strBrowserName = "Opera";
} else if ( ( i = strUserAgent->IndexOf( "Chrome" ) ) >= 0 ) {
strBrowserName = "Chrome";
} else if ( ( i = strUserAgent->IndexOf( "FireFox" ) ) >= 0 ) {
strBrowserName = "FireFox";
}
if ( i >= 0 ) {
int iStart = i + 5;
int iLength = strUserAgent->IndexOf( ';', iStart ) - iStart;
strResult = strBrowserName + " " + strUserAgent->Substring( iStart, iLength );
}
return strResult;
}