Develop Reference

How do I record loopback sound in a Windows Store App?

I want to record loopback sound in a Windows 8.1 Store App.
Currently I have investigated the following options, but I think they don't work for the given reasons:
nAudio & CSCore: Cannot resolve Assembly or Windows Metadata file 'System.Windows.Forms.dll'
nAudio.Win8:WaveFileWriter and WasapiLoopbackCapture are not available.
ScreenCapture with only Audio:Windows.Media.Capture.ScreenCapture.GetForCurrentView() is available only Windows Phone 8.1 but does not work on Windows 8.1
Does anyone have other suggestions to record loopback sound, or is it impossible to do that?
I would like to hear about possible approaches that could work or any examples.

AudioRoutingManager permissions on windows phone 8.1

hope everything is fine with you!
I got stuck trying to route my voip calls through earpiece on my windows phone 8.1 application. Before asking here, I did some google research and I found another thread called "how to play audio through earpiece only in windows phone 8 application".
There they suggest to use the AudioRoutingManager interface and it is available inside windows phone 8.1 SDK but whenever I call any method, the UnauthorizedAccessException is thrown. I can't add the ID_CAP_AUDIOROUTING and the ID_CAP_VOIP capabilities because they don't exist on windows phone 8.1 projects (I am using visual studio 2013).
Now one very important information: I am not using microsoft.phone.networking.voip classes. I have my own SIP stack implemented in cpp which I have already ported for many platforms, like Android, IOS, MAC, Symbian, Linux and now windows phone. This sip stack is working very well on windows phone, I can make calls for PSTN numbers and the audio is connected on both parts but I can't route the audio through earpiece, it is only played through speakers and I always get this UnauthorizedAccessException exception when I try to change the audio routing mode.
I have run out of ideas here and I am really considering to drop the window phone project if I can't overcome this limitation. Any help wiil be appreciated.
Thanks

Windows Store App: how to programmatically launch bluetooth settings app

I am trying to port an app I built on Windows Phone 8 to a Windows Store App 8.1. One of the features I had on my mobile version was the ability for the user to "launch" the in-built Bluetooth settings app from code using:
ms-settings-bluetooth:
Is it possible to do this in a Windows Store App?

I was looking for a solution to the same question. I thought I'd add the answer I found here. It seems that the URI is not supported on Windows store as suggested by the reserved URIs listed here
http://msdn.microsoft.com/en-us/library/windows/apps/hh452686.aspx
This has been answered elsewhere. It looks like you can only show the settings panel and not specifically Bluetooth.
http://social.msdn.microsoft.com/Forums/windowsapps/en-US/a30564be-c91d-4ad4-a402-de1d2cd4f0cc/how-to-open-the-bluetooth-settings-panel-in-a-windows-store-app?forum=winappswithcsharp
Windows.UI.ApplicationSettings.SettingsPane.Show()

Access pictures on a Windows Phone 7 from a Windows 8 application?

I am trying to access images on a Nokia Lumia 610 from a Windows 8 C# application. As it has been pointed out in other posts, such an access has only been possible via Zune and Window Phones would not even be directly visible in Windows 8.
However, using the Windows 8 RTM version I now noticed that the Lumia 610 becomes visible as a device. Still StorageDevice.FromId() raises an exception.
So my question: does the previously valid information ("access to folders on Windows Phones is only possible via Zune") still hold? If not, how can I create a StorageFolder object for a Windows Phone in a Metro/C# application?
Thanks!

I don't think you'd be able to use any WP7 device as a StorageDevice. If I recall correctly, Windows Phone 7 uses IsolatedStorage for storing any and all content, and as such you can't access the files on a Windows Phone through Windows Explorer without rooting/jailbreaking your Windows Phone. And even then, you wouldn't be able to access it through a Windows 8 App AND pass certification at the same time.

Play Vimeo Videos in Windows 7 phone

I am trying to get Vimeo videos to play in a windows 7 phone app. I used the answer here: How can I find download links for vimeo videos? to get a Vimeo URL that looks like this:
http://vimeo.com/moogaloop/play/clip:29415171/f44f7a1dc39fb9b6ebede558e459274e/1310792258
The problem is when I use a non-mobile web browser the video will redirect you to the MP4 version of the file which plays correctly but if played on my Win7 phone (any browser) it doesn’t work. Instead I get a “We are having trouble displaying this page” and a “Error: HTTP 500 Server Internal error”.
Does anyone know how to work around this to get the video to play? Maybe another approach entirely?
I saw this similar question here vimeo video as .mp4 format in android for the Android but its 2 months old and no one has even commented or answered. I know it’s possible to play Vimeo videos in W7 Phone because there are apps for it.
Any help would be appreciated. As always thanks in advance.

For starters, ensure the version of Windows Phone being tested in Windows Phone 7 Mango. As that version has IE 9 with HTML5 video support.
I then believe you need a paid Vimeo account to create mobile videos.

It seems that Vimeo has now added mobile support for Win 7 phones on its site. So if you go to a Vimeo video http://vimeo.com/m// a page will open that will allow you to play and successfully watch the video.
This is not the best solution, as I would rather have a direct link to the video, but for now it's a working solution. If in the future I figure out a way to directly link to the video files I will post it here (or if someone else has done this I would love to know how you did it)