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Viewport2DVisual3D .... this new feature makes things a lot easier in the 3D world.. What this enables is putting interactive 2D on 3D. This makes things like having a textbox in 3D a breeze... < Viewport2DVisual3D x:Name = " vp2d_multiple_children " Geometry = " {StaticResource mesh} " > < Viewport2DVisual3D.Material > < DiffuseMaterial Viewport2DVisual3D.IsVisualHostMaterial = " True " Brush = " White " /> </ Viewport2DVisual3D.Material > <TextBox /> </ Viewport2DVisual3D > One other thing is mapping 3D points to 2D is so much more easier... Earlier on I had a post on mapping a mouseclick on a 3d model to a 2d coordinate. This involved using some barycentric coordinates and such... Now all you need is call e.GetPosition(relativeTo) in the mouse event handler... tada!!... your coordinates are ready... so using this new stuff i created a simple app for keeping track of your travels. right clicking on the globe puts a tag on the globe. Clicking on the Read More...
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In 3.0, we received a number of queries regarding creating plugins. So in 3.5 we got this in .. :) .. Creating an adding would bsically need the use of 3 dlls - System.Addin, System.Addin.Contract, System.Presentation The basic steps to create the addins involves creating a contract, then create the corresponding views and adapsters for both the host and the addin. So in total you will be creating 5 dlls in addition to the app and the actual addin. Even though this looks a bit overwhelming, its pretty simple. http://blogs.msdn.com/clraddins/ gives more information about creating addins. In order to try out this framework, I added the addin support to blogpad with the host being able to set text in the addins... So the app basically has an addin for a calculator (which can be removed) and an ad at the side... You can try out the code that is attached .. FYI, the ad plugin links to an xbap and this line is commented in code.. You might want to point it to a legit xbap to get this plugin working. Read More...
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So 3.5 beta2 is out and it has quite a lot of features. So one of them is the filtering mechanism for IME languages. This was not a problem in the english and other non-IME languages. The problems were the events associated with IME input - TextInputStart/Update/input... A major concern was that it was not possible to determine where the composition took place. Now all these issues have been fixed and filtering in these languages is a breeze. I came up with a sample calculator with the filtered IME textbox which shows how the filtering is done for IME languages. If you go through the code, you will notice that min max positions of the composition are tracked in the events to determine the correct caret position after the filter is applied. The textbox takes any ime input and filters the characters after the composition is complete. The sample project is included to demonstrate the usage of the events. The project also includes a filtered richtextbox even though its not used in the demo Read More...
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Pavan has a nice post on creating baloon comments. The first thing that comes to mind on seeing the balloon comments is Comics. And guess what! thats exactly what I tried.. and presto You can get the original source code here . It overlooks positioning the arrows coming out of the comment boxes - this is a minor detail and I added a dependency property for this purpose. The update code is attached . As for the usage: < custom:BalloonDecorator Background = "Pink " PointerLength = " 30 " CornerRadius = " 5 " CornerPosition = " Right" .... /> Share this post Read More...
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Recently, I was trying my hand at creating a simple blog writer. The writer came out pretty nice. The app makes use of a base richEditor control (thanks to Praj ).. After a bit of tweaking it ended up like the above... So the app just makes a simple call in the xaml <custom:RichEditor/> ...tada ... you have it there!!! The next thing is to write to a blog... In this case, the writer is coded to post the entry on blogger, which makes use of the Google data API .. this could easily be changed for other blogs. It also makes use of a Xaml-HTML converter as the string passed needs to be in HTML. For now, its a blog writer - hence, it onluy writes. But it could easily be extended into a full blown Blog client. Do I hear anyone taking it up :) The code is attached .. so have fun with it .. Share this post Read More...
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just came across a post which includes xaml to display the xaml shield. That looks sweet.. and all the more when its in Xaml... Xaml code attached Share this post Read More...
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If you have tried creating FileDialogs in WPF, they usually do not blend well into the Vista look. The solution is to use the wrappers provided in the VistaBridge library which is part of the SDK samples. You could include the library dll (around 100k) in your project and then make the simple call to CommonOpenFileDialog/CommonSaveFileDialog ... The other option being to just include the specific classes in the project. CommonSaveFileDialog saveDialog = new CommonSaveFileDialog (); Its that easy!! Share this post Read More...
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I was pleasantly surprised by the response I got for the last update of the tool. Along with the feedback I got a few bugs... ahh the bugs ... so went about fixing them ... Got a couple of new features too. :) If you have noticed above, theres a System Tray option to minimize to the systray. Now it wont occupy any additional space - its in the sys tray. By default, its not enabled. The other thing that I added is the send to command interpreter option in the Property tree view. One thing to note here is that sometimes the node higher up the tree is passed. For instance, if you send the Height property of a TextBox to the command interpreter it will send the textbox instance. The reasoning here is that the user wants to modify the Height and sending an instance of the Height doesnt accomplish this (as its disconnected from the parent). Simplicity is the goal here so that there are no crashes... Also, the command interpreter is simplified a lot - So if you perform illegal operations (such Read More...
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Feng Yuan has a nice blog post on how to convert FlowDocuments to an XPS document with the header. The code is in the form of a wrapper class so its gonna be handy. I tried out the code on a RichTextBox and it worked like a charm J I reused one of my old samples and it looks great :) ... The sample code is attached . (PS: Do make a point a read the original post for code specific details) Share this post Read More...
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Xbaps are just multiplying by the day... Just came across this interesting xbap which runs VistaSmalltalk sessions. Its got a nice usage of popups. http://vistascript.net/vistascript/vsb/Vsb.xbap Share this post Read More...
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Recently I was clearing up my documents and I came across this sample I made. Thought it might be useful to someone out there and here it is. It’s basically something like a form but which dynamically grows as and when you fill up the rows. So the typical ‘Add New Row’ button is missing. J … Red (more like pink) rows indicate values being empty; green being obvious. :) .. Typically, you would be using a combobox instead of the textbox. It would result in a better perf experience. The code is simple using a listview which is bound to the data. This might look very familiar to Product Studio if you have used it ;) Code is attached Share this post Read More...
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Recently I was trying my hand at a rough image editing scenario and one of the things was changing into gray scale, brightness and so forth. If you have played with .NET 2.0 you get quite a few functions which help in these types of operations and it would be nice shifting Images to Bitmaps and vice versa. As luck would have it, Robert had posted some code on this in the forums. To get the Bitmap you would have to call CopyPixels on the BitmapSource and convert it to a Bitmap- transformedBitmapSource.CopyPixels(bits, stride, 0); unsafe { fixed ( byte * pBits = bits) { IntPtr ptr = new IntPtr (pBits); System.Drawing. Bitmap bitmap = new System.Drawing. Bitmap ( width,height,stride, System.Drawing.Imaging. PixelFormat .Format32bppPArgb,ptr); return bitmap; } } To do the reverse: System.Windows.Media.Imaging. BitmapSource bitmapSource = System.Windows.Interop. Imaging .CreateBitmapSourceFromHBitmap( bitmap.GetHbitmap(), IntPtr .Zero, Int32Rect .Empty, System.Windows.Media.Imaging. BitmapSizeOptions Read More...
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Dependency property is a pretty kewl concept. You got to agree on that J . One the nice features is the ability to listen to the changes in these properties and I tend to use it a lot. The SDK way would be to derive from the control, override the dependencyproperty metadata and specify the propertychangedCallback in the signature. Hmmm… pretty cumbersome you would say. public class MyTextBox : TextBox { public MyTextBox(): base () { } static MyTextBox() { FlowDirectionProperty.OverrideMetadata( typeof ( MyTextBox ), new FrameworkPropertyMetadata ( new PropertyChangedCallback (FlowDirectionPropertyChanged))); } private static void FlowDirectionPropertyChanged( DependencyObject sender, DependencyPropertyChangedEventArgs args) { (( MyTextBox )sender).FontWeight = ((( MyTextBox )sender).FlowDirection == FlowDirection .RightToLeft) ? FontWeights .Bold : FontWeights .Normal; } } But hey, things get easy, thanks to Ben . What you can do is use the DependencyPropertyDescriptor. DependencyPropertyDescriptor Read More...
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I hope you guys out there have tried out the New York Times NewsReader. It enriches the reading experience. It’s more immersive in the sense that you get the feel of reading a newspaper J . Now we expand this experience to more readers. We now have Seattle P-I, Daily Mail, and Forbes.com come out with their own readers. Check out the video below: Download links: Seattle Post-Intelligencer Reader Daily Mail eReader New York Times Reader Forbes.com Newsreader The exciting news is that we have been working on a toolkit which makes creating such readers a rather simple designing task. This toolkit is in private beta but will be released soon so that anybody could then provide a customized reader for their rss feeds. Share this post Read More...
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Some time back I got a question about capturing the contents of a frame and it seemed easy, but every time I tried capturing the frame i was getting a blank image. The trick here is that the frame loads the content asynchronously - the simplest thing to do is wait for some time :) ... The frame is an HwndHost that hosts an ActiveX control to load the web content. So the first thing to do is get hold of the HwndHost and then wait for a few seconds and you have it.. for ( Visual v = TheFrame; v != null ; v = VisualTreeHelper .GetChild(v, 0) as Visual ) { hwndHost = v as HwndHost ; if (hwndHost != null ) { break ; } } Now create a DispatcherTimer and wait till it triggers DispatcherTimer timer = new DispatcherTimer (); timer.Tick += TheFrameAfterLoaded; timer.Interval = TimeSpan .FromSeconds(5); timer.Tag = hwndHost; timer.Start(); void TheFrameAfterLoaded( object sender, EventArgs e) { DispatcherTimer timer = sender as DispatcherTimer ; HwndHost hwndHost = ( HwndHost ) timer.Tag; timer.Stop(); Read More...
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