Problems getting paid from the Windows Store, again

I do not make much money on my Windows Phone apps (who does?), but when the payout time comes every couple of months, I expect the money to be delivered. Dealing with Microsoft, I should know better.

Failed payment

Last month I looked into the Dev Center and saw that my scheduled payment failed, telling me to contact the support. So I did. The result was one moth of exchanging email without a solution.

Dealing with support

The Microsoft employee told me that I am in a small group of people with this problem. I do not know if I have such a bad look always be in a problematic supposedly small group, or that the group are not that small. He told me that Microsoft will retry the payment. The payment was supposedly retried on June 24th and succeeded. So they say.

Great news, your June payout was returned due to an internal issue; however, the payout of 5264.17 CZK has been re-attempted and was successfully completed on June 24th. If you have not received the payout then please review this transaction with your bank. Please let me know if you have any further questions.

I never got the money. The employee asked me a few times if I got the money and then resigned, telling me that it is my problem and I should check with my bank. Of course I checked with my bank, they do not have the money. If they had, they would transfer it to my account.

Will it happen again?

So the support is not helpful, I think I will never see this money and I can just hope the next payment in a couple of months will be successful. Will it?

I took a look at my payout settings in the new Dev Center and it is a mess


It previous pages is telling my that everything is ok and my data is valid, but is it? Those four radios do not give me the confidence to believe it. Especially seeing my old account (x3168) that was there in the Windows Store and I deleted it. I used to get the payment to the x0026 account that was in my Windows Phone Store account.

Funny thing about this form, I never found out how to delete this old account. If you select it, you can only edit it, no way to delete it. If I select the correct account and click save, nothing changes, the radios all remain unselected. I do now know it is a bug or another great Microsoft UI.

So I guess maybe the next payment will also get lost somewhere ..

Quick Tip: Showing solution branch name in Visual Studio title

By default, Visual Studio shows the name of the opened solution name in the title. This makes it easier to navigate among multiple instances of Visual Studio. You see the solution name next to the Visual Studio icon in the taskbar and also in the task manager, when you have to (and we all sometimes have to) kill the right Visual Studio because it stopped responding.

I work with Git, switching branches frequently, especially working on features and bug fixes. In this situation, it would be nice if Visual Studio showed not only the solution name but also the current branch in its title. No problem, there is an extension for that.

The extension is called Rename Visual Studio Window and it works with Visual Studio 2015, 2013, 2012, 2010. This extension supports Git, so you can easily add the branch name to the title with a config like mine using [gitBranchName].


Your taskbar will then look like this


Implementing Google login in Universal Apps

In a recent project I had to implement Google login to an Universal App. I decided to use the native WebAuthenticationBroker control and the implementation was not as straightforward as I hoped. By implementing Google login I mean getting the authentication token that you can then use with your server API.

WebAuthenticationBroker is a good idea but it is implemented rather poorly. It works differently on Windows 8.1 and Windows Phone 8.1 due to the “AndContinue” pattern that Windows Phone 8.1 forces on you. You can solve this with some ifdefs and platform specific code, as always.

The real problem s that the MSDN sample states it works with Google login but it does not. The sample thinks it gets the authentication token but it does not, it just gets the success code that you have to exchange for the authentication token yourself.

Lets start with a basic config

The important things here are your Google app id and Google app secret. The GoogleStartUri also contains permissions that you want to get (profile, and email in my case).

You use this config with a WebAuthenticationBroker call

on Windows 8.1 you get the response data immediately. On Windows Phone 8.1, you have to implement the “AndContinue” pattern.

You use the response data to parse out the success code

Now that you have the success code, you can exchange it for the authentication token

And now you finally have a way to get the authentication token and implement Google login.

Removing unused strings from Windows Phone 8 RESX files

Using RESX files is the standard approach to Windows Phone 8 app localization, it is even contained in the standard project templates. When you work on a project for a longer time, you may get to a situation that your RESX files contain strings that you no longer use. This is a problem especially when you want to add a new localization, because it is slower and kind of wasteful localizing unused strings.

To solve this problem I have created a simple command line utility, that is available at Github. This utility assumes that you use the standard localization approach from the templates (AppResources.{lang}.resx and LocalizedStrings.{value} in XAML).

The usage is really simple. Just run the utility with the path to your project as a parameter. It will detect all resources files and remove all the unused strings from them.

Custom DateTime deserialization with JSON.NET

Sometimes you cannot influence the design of the API you have to use and wonder, why the API uses so strangely serialized DateTime and how to handle it using JSON.NET.

Luckily, JSON.NET makes plugging in custom serializers / deserializes quite easy. There are a few base classes to help you write your own converter, when dealing with DateTime you want to inherit the DateTimeConverterBase class.

There are two methods in this class to override, WriteJson and ReadJson. All you custom serialization and deserialization logic should be placed there.

Here is a sample implementation:

If you want to use your custom converter to serialize or deserialize a property you just need to decorate it with the right attribute.

Customizing the Player Framework UI

In my last article I gave you a tip on how to localize the Player Framework, in this article I will show you have to customize the UI of the actual player.

The first step is to obtain the Generic.xaml file that the Player Framework uses for styling. You can find it in C:\ Program Files (x86)\ Microsoft SDKs\ Windows\ v8.0\ ExtensionSDKs\ Microsoft.PlayerFramework.Xaml\\ Redist\ CommonConfiguration\ neutral\ Microsoft.PlayerFramework\ Themes. Copy it to your projects and rename it to something more telling, like PlayerFramework.xaml.

You can now edit the copied XAML file and customize it any way you want. If you do the styling for a Windows Phone app, keep in mind that the ControlPanel switches to the Compact states and a few transformations are applied by default, that can interfere with your styling.

Finally, you need to apply the style by adding it to the page with your player

The death of the WinRT developer?

As many other Windows Phone / Windows 8 / Universal apps developers (lets just call us WinRT developers) I watched the Build 2015 keynote last night. And I did not like it. I know Microsoft does not know to communicate but the message for me was clear. We, the WinRT developer, are no longer needed.

First, Microsoft announced that WPF apps will be allowed to be submitted to the Windows Store to be used on desktops / tablets. So why would anyone want to develop (or want to have developed) a Windows 8 (WinRT) app, when they can just use WPF and get everything done easier? I do not know.

But allowing WPF apps to the Windows Store is a small news compared to the ability to run Android apps on Windows Phone. The first news talked about porting Android apps to the Windows Phone, but later, statements like this appeared

Android developers will be able to submit versions of their apps, written in Java or C++, to the Windows Store in he form of APKs and have those apps work on Windows Phone 10 devices. Android developers should be able to start submitting apps to the Windows 10 Store some time in the next few months.

So let get this straight. Who would want a native mobile Windows app developed, when they can just take their Android app and use it on Windows? What company would want to keep their mobile Windows team, when they can just use their Android team to make Windows apps?

Sure, Android apps will probably not run on XBOX and HoloLens, but I doubt Microsoft will open the XBOX store for all the developers, more likely only chosen companies will be allowed to publish apps. HoloLens will be used only by a small number of people if this price is not really low (which I doubt it will be), so only a few HoloLens apps will be needed.

For me, the situation seems clear, it is the death of the WinRT developer.

Player Framework localization

In my recent universal (Windows Phone 8.1 and Windows 8.1) project I implemented PlayReady DRM protected smooth streaming movies playback using the Player Framework. This projects seems to be dead, but it is still the best option when implementing any kind of video playback.

One of the first things I had to do was localize it’s controls, because the app I worked on was in Czech and Slovak, not in English (the only language the Player Framework supports out of the box). Not all the texts an be localized, but the most visible ones like button labels and error messages can.

To create your own localization, I suggest you create a new RESW file in your project. You can use and existing one, but I prefer to separate the texts for the Player Framework from texts for the rest of the app.

Next you have to find out the keys for the string you want to localize. You an find them in the source code. You can just copy the content of that RESW file to yours RESW file and localized everything.

The last step is to let the PlayerFramework know about your RESW file using

Leveraging ETag caching in Windows Phone and Windows apps

In my previous article I showed you how to implements server side caching using ETag. HTTP clients on other platforms can usually work with ETag automatically, but of course, the portable HTTP client used on Windows platforms cannot. You have to implement ETag handling yourself.

In TvTime, all the server requests are GET request, so I remember the ETag values for each Url (= each GET request). I store the ETag values in application local settings.

When the app wants to get some data, I perform a GET request including the ETag as the If-None-Match header. If my ETag matches with the ETag on the server, the server returns HTTP 304 Not Modified and I return the cached data from disk. Otherwise I read the response body and return it.

This approach works with the portable Http client library, that you can use with Windows Phone 8 (Silverlight), 8.1 (Sliverlight), 8.1 XAML and Windows 8/8.1. If you only need to support Windows Phone 8.1 XAML and Windows 8.1, you may want to look into the Windows.Web.Http.HttpClient.

Using ETag to cache responses in NancyFX

Caching data is usually a good idea, especially when creating APIs for mobile clients and the user may pay for each transferred byte. There are many approaches to caching data (I recommend reading this article), in my last NancyFX project I used ETag.


ETag is a HTTP header that acts as a hash of the data. When the server returns a response, it computes a hash of the data and sends it to the client. When the client requests the data again, it includes the ETag in its request. The server compares the ETag with the hash of the current data and if they match (the data did not change), it returns an empty responses with a HTTP 304 status code.

NancyFX impelemntation

To implement caching using ETag in NancyFX I use a method in my base module

There are two parameters in this method, because you may sometimes want to compute the ETag from only a part of the returned model.

Using this method is the really simple

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