When i want to use window.external on internet explorer 9, it's always null. I want to use pinned methods but it cannot find the methods because of window external is null. if wonder that what is "pinned" you can check this link. http://msdn.microsoft.com/en-us/library/gg131029(v=vs.85).aspx Can any body help me for this ?
In my IE9 typeof window.external returns "object" but I also don't have Pinned methods. Check your IE version for compatibility with pinned api first here (it will tell you if you need an upgrade) http://ie.microsoft.com/testdrive/Browser/SitePinning/Default.html?o=1
Regarding window.external it usually refers to additional level of Api when you use IE as a WebBrowser control in your app (hosting scenarious):
Window.external allows access to an additional object model provided by host applications of the Windows Internet Explorer browser components.
http://msdn.microsoft.com/en-us/library/ms535246%28v=vs.85%29.aspx