Dealing with audio in HTML5 apps

While everyone was preparing for ICE Totally Gaming, we at OB&T were busy helping exhibitors to prepare their gaming solutions. One of our clients requested to adopt his legacy HTML5 game to support modern iOS devices such iPhones and IPads. Lond story short – we…

Switching locale in application? Just another know-how

Say, you need to implement a language switch in your SPA (single-page application). The “standard” way is to store this setting in every View of Ractive.js translation dictionary and push JSON’s into the embedded views. This all works fine but complicates further support and maintenance…

Moving to a new iOS

While you are developing for iOS you are regularly facing with the new iOS version releases. Some of them go smooth and your initially built app continues working fine. Like, you can simply skip newly deprecated functions. However, major versions may simply not allow your…

Blockchain it or not?

Blockchain is the hottest guy on the block (pun intended), when it comes to financial technology. It was the main technological innovation of bitcoin, where it serves as the public ledger of all bitcoin transactions. And now it is being actively used in electronic trading…

IB TWS – Forever up! Fixing disconnect routine

Imagine you need to create an algo tool that should work with Interactive Brokers through Trading Workstation API. Nothing complex, right – so, you develop the tool, test it using the paper account, all goes smoothly and you’re ready to go live. However, once done…

Silverlight to HTML5

A while ago we faced a task of converting Silverlight front-end application into HTML5. Apart from the fact that app was 100% based on Silverlight 5, it used third party components like Telerik, KML files read/write utilities, Spatial data processing utilities, MS Map Controls, PRISM…

Slow JQuery hide and show

Very often it is very important for UIs in webapps to show and hide blocks of content. However, it turned out that iPad-versions of the same menus work about 1 second longer than desktop versions of the same webapp. Real-life variations can be 1 to…

Create stock charts based on Yahoo!Finance? Piece of cake!

We needed to build a dynamic chart with some historical stocks data showing a daily performance of individual stocks, indices, and portfolio. HighStocks js lib was chosen, and Yahoo!Finance was used to get historical EOD data for NASDAQ stocks to minimise support costs for the…

Fighting with Knockout.js as performance is our everything

There is a legacy Java web app that we keep enhancing and improving for our beloved client. This application obtains various kinds of information from social networks via RESTful APIs and presents that information as timelines. At the moment with an increase in the amount…

Multithreaded TWS MFC application: Yes or No

Multithreading is a nut for several years by now. This is the only way to achieve scalability: CPU clocking is close to limit. There are a lot of cookbooks explaining how to build multithreaded applications properly. The only issue is that building a block of…