I just checked in the implementation code for a new feature for ClipFlair Studio’s Captions/Revoicing component: When playing back recorded (or loaded from a WAV or MP3 file) audio for a caption/revoicing entry, the playback is now limited to the duration of the respective caption, (End-Start) time that is (btw that component has a duration ...

This is my contribution to: http://stackoverflow.com/questions/19294258/forcing-mediaelement-to-release-stream-after-playback/27436323 If you use MediaElement, make sure you don’t get bitten by this one: http://msdn.microsoft.com/en-us/library/cc626563(v=vs.95).aspx ArgumentNullException – The mediaStreamSource is null. … After ...

At ClipFlair’s AudioRecorderControl (used in Captions/Revoicing component of ClipFlair Studio), I use the following code to initialize a MediaElement to use for playback. After a long time a found out that if the MediaElement is not in the visual tree (for example defined in XAML, or defined in code and then added to the visual […]

Just added the following comment to: https://github.com/loarabia/ManagedMediaHelpers/issues/15 Managed Media Helpers contains the very useful Mp3MediaSource class for .NET / Silverlight / Windows Phone. Added compile-time SWITCHES and respective code to Silverlight demo code for PRELOAD (into memory stream) and AUTOPLAY (this was a bit tricky, ...

This is my contribution to: http://stackoverflow.com/questions/2652816/what-is-the-difference-between-document-location-href-and-document-location Here is an example of the practical significance of the difference and how it can bite you if you don’t realize it (document.location being an object and document.location.href being a string): We ...

<xsl:template match="cxml:Item" mode="col">   <xsl:variable name="FILENAME" select="…someXPathQuery…"/>   <xsl:variable name="IMAGE" select="concat(‘http://gallery.clipflair.net/activity/image/’, $FILENAME, ‘.png’)"/> … I got confused a bit ...

In C/C++ and C# one has useful prefix (++index) and postfix (index++) increment operators and corresponding decrement ones. Although they have a single operant, they’re not working like functions as single + or – prefix would do, but instead they cause side-effects – they edit the variable passed to them. The prefix increment operator first ...

at System.IO.Path.GetInvalidPathChars one reads: The array returned from this method is not guaranteed to contain the complete set of characters that are invalid in file and directory names note: can also call this method from non-trusted Silverlight app – not as Intellisense tooltip wrongly says in Visual Studio 2013 with Silverlight 5.1 I ...

It seems that CaptureMouse is behaving differently in WPF and Silverlight, in that in the former one it immediately calls OnLostMouseCapture at a Visual, whereas in Silverlight it doesn’t get called if the element didn’t have the mouse capture already (btw, in Silverlight that method is at a UIElement – there is no Visual ...

I have submitted the following issue to Microsoft Connect (product feedback center): http://connect.microsoft.com/VisualStudio/feedback/details/809084/point-class-issue-with-two-way-databinding Point class issue with two-way databinding   In Silverlight, when using databinding code like the following: <StackPanel ...

I try to remember to use <%– and –%> instead of <!– and –> for comments in server-side web pages, to avoid having implementation details (for security reasons that is) in the output HTML and to keep the download size smaller / have the pages load faster. What came to me though the other day […]

At ClipFlair Studio (a Silverlight app), I had some time ago implemented a confirmation warning upon user trying to close the webpage (when it was running inside the web browser), which then had stopped functioning. It seems at some refactoring I had added code like the following: var activityView = activityView(); and it was failing […]

At ClipFlair’s Image component I use the following XAML to make it show an image from a URL that its ViewModel holds at a property named “Source”, of type Uri (URI = Uniform or Universal Resource Identifier in W3C parlance, something like a superset of the old classic URLs). <Image Name="imgContent"        ...

While stepping through “ShowDialog()” method of OpenFileDialog with Visual Studio 2010 debugger, at the Silverlight code pictured below (for loading a ClipFlair window’s stored options), I got a “Dialogs must be user-initiated” exception. Same behaviour will be shown with SaveFileDialog too, every time you try to step through the “ShowDialog()” ...

Was just debugging an issue with loading of saved state at ClipFlair’s Text component, when I realized that Silverlight’s (and WPF’s) RichTextBox control doesn’t accept an empty string at its Xaml proprerty to clear its contents as one would expect. Instead clearing the contents of the RichTextBox requires a call to Blocks.Clear(). In ClipFlair’s ...

Just came accross a runtime error message that troubled me a bit to resolve while adding Prezi-like content scaling functionality in ClipFlair‘s FloatingWindowHostZUI (ZUI = Zoomable User Interface) container. I had added the following: /// Identifies the <see cref="FloatingWindow.Scale" /> dependency property. /// ...

Via trial and error, I recently found out that when creating a Uri combining another Uri and a suffix part (tried at Silverlight, but I guess it’s a .NET issue in general), it eats up the last part of the (first) Uri if it doesn’t end with "/". That is, if you combine http://test.com/a with [...]