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I am creating a windows phone 8.1 universal application with a background task. Every time my background task is instantiated the application crashes and none of my background application code is executed.
any assistance would be greatly appreciated
In a windows Universal Application Class library that implements IBackgroundTask the output type, must be set to "Windows Runtime component". If the Class library output is set to "Class library" the application will crash when trying to instantiate the background task with no exception being thrown.
To resolve in the class library goto project settings...
Select Output type and set the Output type: to "Windows Runtime Component".
This is a difficult error to diagnose since no exception is ever thrown.
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I've made a webpage on HTML and I want to run a .cpp application on it. With the way I've learnt to do it, the code is displayed.
The only way to do this is ActiveX, which by default is not supported by anything anymore. Only Internet Explorer supports it, but even that needs to be specifically allowed.
But you'd still have to first compile the cpp-code and do quite a huge amount of programming work before you'd have an valid ActiveX -dll. Then you'd also somehow need to deploy it for all website clients.
TL;DR: No, no no no. Running C/C++ for web clients is no-go.
However, if you are looking for something like that website client should be able to invoke a C++ application at the server, this is very possible. You still need to have that application compiled for the server environment though. For small "run and get the results" -tasks I've found it easiest to use ajax to call php -scripts, as php can execute stuff on server.
Signed Java Applets can run executables from browser, but it's not welcomed nowadays.
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My Python Flask application display JSON calls in pretty print when running in development box.
However, after it is deployed to a production with nginx/uWSGI, the pretty print is lost.
How do I maintain the pretty printing for Flask app deployed on nginx/uWSGI
Flask's jsonify function will pretty print output by default. This is disabled during AJAX requests or if JSONIFY_PRETTYPRINT_REGULAR is configured to be False. Other JSON dump functions besides jsonify will not pretty print unless told to. There will not be any difference on production versus development unless you have changed this configuration option.
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I have an app and it's using JSON and an UITableView.
When I try to build/run my app it says: No known class method for selector 'JSONRequestOperationWithRequest:success:failure
This is my code:
http://hastebin.com/axaxumosam.m
The error occurs on line 48.
Hope that you can help me.
Greetings Rik
It seems you are trying to use older delegate on the newer version of the API:
AFNetworking 2.0 Migration Guide
One of the most significant changes in AFNetworking 2.0 is its new
architecture for content negotiation and serialization. Previously,
response validation and serialization was delegated to
AFHTTPRequestOperation and its subclasses, with content-specific logic
scattered throughout implementations for
setCompletionBlockWithSuccess:failure: and other properties. In 2.0,
all of this logic is encapsulated in a serializer object that conforms
to AFURLResponseSerialization.
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I have a textbox with the following expression:
=DataSets("MyDataSet").RewrittenCommandText
But nothing is returned, not even error. Any ideas?
The RewrittenCommandText property value is populated at runtime from data extensions that support the IDbCommandRewriter interface. If a data extension doesn't support this interface, RewrittenCommandText will be Nothing. The built-in report model data source supports this interface but I don't think it is supported by many other data extensions.
I just tried a standard SQL Server dataset and RewrittenCommandText returned Nothing even though the SQL is being built by custom DLLs. However, the CommandText returned the generated SQL, not the expression being used to generate the SQL so that might work for you.
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I'm using mupdf component in my Windows 8 app. When I tried to upload it on store it is saying unsupported api. How to avoid this? It is pointing to mupdf references file.
When I remove that dll file my app is not running.
Here is my error code
windows 8 Supported API test FAILED
The Git repository for MuPDF includes source for building on winRT and there are project files in the platform/winrt directory. While this is relatively new, we believe that this all works, if you know differently you should probably open a bug report.
Please note that there is only 1 developer with a build and test system for this, so be patient if posting bugs specific to winRT.
Issues with Windows App Certification Kit