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• How to P/Invoke VarArgs (variable arguments) in C#? ... or hidden junk in CLR

  Recently I wrote a cheat sheet for pinvoking in .NET . Shortly after I got a question in comments about how to deal with variable arguments, when it's more, then one parameter. Also what to do if those arguments are heterogeneous? Let's say, that... Posted Nov 19 2008, 06:44 AM by Just code - Tamir Khason : WPF Filed under: WPF, Tutorial, tips and tricks, C#, Microsoft, source, .NET 3.5, DEV, Work process, Interop

• Auto scroll ListBox in WPF

  In WinForms era it was very simple to autoscroll listbox content in order to select last or newly added item. It become a bit complicated in WPF. However, complicated does not mean impossible. As for me, Microsoft should add this feature to base ListBox... Posted Nov 10 2008, 09:03 AM by Just code - Tamir Khason : WPF Filed under: WPF, Tutorial, tips and tricks, Accessibility, .NET 3.5, DEV, Work process

• P/Invoke cheat sheet

  I’m working a lot with p/invoke, and know how it’s hard to produce correct signature for unmanaged method. So, today I decided to publish basic cheat sheet for methods, parameters and attributes you should use in order to invoke unmanaged methods from... Posted Oct 20 2008, 04:02 PM by Just code - Tamir Khason : WPF Filed under: WPF, Tutorial, tips and tricks, C#, Microsoft, Mono, .NET 3.5, WPF crossbow, x64, DEV, Work process

• Set binding, based on trigger

  Let’s say, that you want to set binding. However, you want to set it by using some trigger. Wait! Why I need it? Let’s say, that I have some very special object, that actually has no hard-coded properties. All it’s properties are created during the runtime... Posted Oct 13 2008, 03:53 AM by Just code - Tamir Khason : WPF Filed under: WPF, Tutorial, tips and tricks, C#, source, .NET 3.5, DEV, Work process

• HLSL (Pixel shader) effects tutorial

  Recently, I already wrote about PixelShader effects , introduced in .NET framework 3.5 SP1 (WPF). However it looks like for most people this syntax is still hard to understand. Today we’ll try to lean it more. In order to do this, I wrote small program... Posted Jun 17 2008, 02:56 PM by Just code - Tamir Khason : WPF Filed under: WPF, Tutorial, tips and tricks, C#, Performance, .NET 3.5, DirectX

• Brightness and contrast manipulation in WPF 3.5 SP1

  While being in flight, I had to learn new features, introduced in .NET 3.5 SP1. So, let’s start from image manipulation. I want to perform contrast and brightness manipulation in GPU over displayed image. In order to begin, you should download and install... Posted May 23 2008, 11:06 AM by Just code - Tamir Khason : WPF Filed under: WPF, Tutorial, tips and tricks, C#, Performance, source, .NET 3.5, DirectX

• How to AddRange/RemoveRange in Silverlight ObservableCollection<T>?

  Someone in Silverlight forum asked for interesting question: “Is there any way that I can add/remove items in bulk from an ObservableCollection object?”. The “formal” answer is: “No, AddRange RemoveRange operators are supported for List<T> only... Posted May 13 2008, 05:13 AM by Just code - Tamir Khason : WPF Filed under: WPF, Tutorial, tips and tricks, C#, SilverLight, Performance, source

• Search and highlight any text on WPF rendered page

  Today we’ll speak about how to search and select text on WPF page. This is not about how to search data sources, or how to search for data. This is visual search. Like this one Let’s see how XAML looks like <Grid Name="root"> … <StackPanel... Posted May 12 2008, 01:12 PM by Just code - Tamir Khason : WPF Filed under: WPF, Tutorial, tips and tricks, C#, source, .NET 3.5, XPS

• DrawingBrush and deep clone in Silverlight

  Today, we’ll say “ They did not put it there ” as lot. And start with DrawingBrush. Yes, there is no Drawing Brush in Silverlight, thus you cannot create neither hatch brush nor pattern brush in Silverlight. But we want it to be there. What to do? To... Posted May 06 2008, 01:45 PM by Just code - Tamir Khason : WPF Filed under: WPF, Tutorial, tips and tricks, C#, SilverLight, source, Web

• Performance appliance of RenderTargetBitmap

  Challenge : draw complicated Path and animate anything over it Problem : high CPU while animating object So, we got another challenge – draw Path object with thousand of points and animate another object over the Path by having least possible impact on... Posted May 05 2008, 05:09 AM by Just code - Tamir Khason : WPF Filed under: WPF, Tutorial, tips and tricks, C#, Performance, source

• Webcam control with WPF or how to create high framerate player with DirectShow by using InteropBitmap in WPF application

  Did you ever see, that MediaElement “eats” about 30% of CPU while playing movie in WPF? Did you thought, that you  can display live camera capture in WPF with 60 fps full screen (I have really high resolution 1920x1200) and 2% of  CPU? You did... Posted Apr 23 2008, 02:33 PM by Just code - Tamir Khason : WPF Filed under: WPF, Tutorial, tips and tricks, C#, Performance, source, .NET 3.5, DirectX

• Quick WPF Tip: How to bind to WPF application resources and settings?

  You, probable know, that you can save application resources and settings within handy classes Settings and Properties, provided by Visual Studio code generator. Just put your values, set the usage scope and all you have to do is to save it upon request... Posted Apr 22 2008, 01:55 PM by Just code - Tamir Khason : WPF Filed under: WPF, tips and tricks, C#, Visual Studio, VSTS, Accessibility, .NET 3.5

• WordML to FlowDocument – how to convert docx files to WPF FlowDocument

  Recently we spoke about converting XPS files and FixedDocuments to FlowDocuments . It works, but there are lot of problems, due to fact, that FixedDocument (or XPS/PDF document) has less information, then the original file. Those files are, actually,... Posted Apr 22 2008, 11:42 AM by Just code - Tamir Khason : WPF Filed under: WPF, Tutorial, tips and tricks, C#, Microsoft, LINQ, download, source, .NET 3.5, XPS, XLINQ

• Using Vista Preview Handlers in WPF application

  First of all what is Preview Handler? Preview Handler is COM object, that called when you want to display the preview of your item. Other words, Preview Handlers are lightweight, rich and read-only previews of file’s content in a reading pane. You... Posted Apr 18 2008, 07:08 AM by Just code - Tamir Khason : WPF Filed under: WPF, Tutorial, tips and tricks, Vista, C#, source, .NET 3.5, WPF crossbow, XPS

• Converting FixedDocument (XPSDocument too) to FlowDocument

  First of all, what’s the differences between FixedDocument and FlowDocument and why we can convert FlowDocument into FixedDocument easily but not vice verse? Let’s try to understand What is FixedDocument? FixedDocument is a host for portable... Posted Apr 17 2008, 02:07 PM by Just code - Tamir Khason : WPF Filed under: WPF, Tutorial, tips and tricks, C#, source, demos, .NET 3.5, XPS