Posts by Jeff Prosise

A few years ago, I needed a CoverFlow control for a Silverlight project I was working on. Since Silverlight didn’t include a CoverFlow control, I did a little searching and found an open-source XAML CoverFlow control on CodePlex. So I downloaded the code, tweaked it a bit, and quickly had a control with the basic…

Microsoft’s Surface RT lacks a GPS receiver (bummer!), but you can still use WinRT’s location API to build location-aware apps for it. As long as you have a WiFi connection, the location API can determine where you are with a reasonable degree of accuracy – sometimes with astonishing accuracy – using WiFi positioning. Furthermore, you…

One of the cool things about Microsoft’s Surface RT is that it comes with a rather complete array of sensors. Among those sensors are an accelerometer, which allows software running on the device to sense the acceleration along the X, Y, and Z axes in real time. As a practical matter, that means software can…

Windows 8 is out, ads are flooding the airwaves (bravo, Microsoft!), and the punditshpere is teeming with articles generally praising the platform but decrying the lack of apps. As Reuters recently put it, “A lack of apps is Microsoft’s Achilles heel as it attempts to catch Apple Inc and Google Inc in the rush toward…

Another new feature of Windows Phone 7.1 that every developer should know about is secondary tiles. Windows Phone 7.0 allowed users to pin an app to the Start screen, creating a tile for that app. But it limited apps to one tile each, and it provided no mechanism for passing information to an app launched…

Silverlight 5 boasts a wealth of sexy new features, including a full-blown, hardware-accelerated 3D graphics API, support for custom markup extensions, multiple-window support in trusted out-of-browser apps, and the ability to run trusted applications in the browser (with sufficient permissions, of course). Post-beta, even more features will be added, such as support for invoking native…

Another of the minor but potentially useful new features coming in Silverlight 5 – and already present in the Silverlight 5 beta – is style data binding. Simple put, style data binding allows you to use data-binding expressions to assign values to style setters. It may not sound that exciting, but among other things, it…

Silverlight 5 boasts a lot of big new features, but sometimes it’s the little things that count. A case in point is the new RichTextBoxOverflow control, which simplifies the process of implementing newspaper-style layouts in Silverlight applications. It may not be as sexy as the new 3D graphics API, but RichTextBoxOverflow will be your best…

The first beta of Silverlight 5 was announced at MIX this week and is available for downloading. As such, I’ll be blogging about the new features in weeks to come. I’ll also be delivering sessions on Silverlight 5 at several upcoming conferences, including Microsoft TechDays in Belgium, Microsoft DevDays in the Netherlands, Devscovery in Redmond,…

HTML5’s Canvas and CanvasRenderingContext2d bring something to HTML5 that has long been missing from HTML: the ability to draw pixels into a browser window. I wrote about the canvas API in a previous post entitled Making HTML5 Come Alive with the Canvas API. This time, I’d like to build on that post by exploring a…

A few weeks ago, I wrote about Silverlight for Windows Phone’s location API, which allows applications to ascertain their location – latitude, longitude, altitude (if GPS is available), and so on. More recently, I’ve been writing samples around HTML5’s geolocation API. The two APIs are remarkably similar save for HTML5’s lack of support for setting…