Calling WinRT component from an iframe?

Question

Hello, now I need to invoke a winRT component written in C++ in an iframe because it needs to run some external scripts. I have read the article

http://msdn.microsoft.com/en-us/library/windows/apps/hh441569%28v=VS.85%29.aspx , however it seems I can't activate the component if it's in the iframe.

in default.html

<iframe id="mapFrame" src="ms-wwa-web:///map.html">         

and in the js file included in map.html,

var a= new mydll.func();     //error, mydll undefined

Is there some way to do this not in default.js?

 

 

Answer 1

Hi Yi,

I am trying to create a simple repro of the problem now.  Are both the html file and the js file in your application, or is one of them an externally fetched resource?  Also are you familiar with this whitepaper: http://www.microsoft.com/download/en/details.aspx?id=27408 ?

You must use ms-wwa:/// to ensure you are in a local context.  If you are using ms-wwa-web:/// you cannot access WinRT or WinMD components.

-Jeff

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Jeff Sanders (MSFT)

Answer 2

Yes, both html and js are in same app.

default.html

<iframe id="mapFrame" src="ms-wwa-web:///map.html?"> </iframe>

and in mapFrame.js which included in iframe "map.html"

var v = new WinRTComponentDll.dll1; //error

It looks you can't call this component like what we do in default.js. Now I use "postMessage" as workaround to post result to iframe.

Answer 3

Hi Yi,

You can definitely call into WinRT from an iframe as I discussed in my previous reply.  You MUST use a local context however.  I am happy you have a workaround!

-Jeff

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Jeff Sanders (MSFT)