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  • InteropBitmap to BitmapImage

    - by Tony
    Hi, I'm trying to Convert a Bitmap (SystemIcons.Question) to a BitmapImage so I can use it in a WPF Image control. I have the following method to convert it to a BitmapSource, but it returns an InteropBitmapImage, now the problem is how to convert it to a BitmapImage. A direct cast does not seem to work. Does anybody know how to do it? CODE: public BitmapSource ConvertToBitmapSource() { int width = SystemIcons.Question.Width; int height = SystemIcons.Question.Height; object a = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(SystemIcons.Question.ToBitmap().GetHbitmap(), IntPtr.Zero, System.Windows.Int32Rect.Empty, BitmapSizeOptions.FromWidthAndHeight(width, height)); return (BitmapSource)a; } property to return BitmapImage: (Bound to my Image Control) public BitmapImage QuestionIcon { get { return (BitmapImage)ConvertToBitmapSource(); } }

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  • TFS Changeset history using QueryHistory after branch rename

    - by bryantb
    I'm using the VersionControlServer.QueryHistory method to retrieve a list of files that have changed during a timespan that ranges from 5/1/2009 to 10/1/2009. My results unexpectedly only included items that had changed after 9/1/2009. I then realized that the path that I was using, $/Project/Reports/Main, didn't exist until 9/1/2009. Before 9/1/2009, there had been another node named $/Project/Main/Reports, which was renamed to $/Project/Reports/Main. When I query from Source Control Explorer I can see the entire history (5/1/2009 - 10/1/2009) that I expect to see. However, I can't get the same results via the API. I've tried to specify the branch that no longer exists because it was renamed, but not surprisingly I get zero results. Any ideas?

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  • WPF 3D - converting from Point2D to Point3D and back again

    - by DanM
    I'm new to WPF 3D, so I may just be missing something obvious, but how would I go about converting from a 2D coordinate to a 3D coordinate and back again? I'd like the 2D coordinate to be the location measured from the upper-left corner of Viewport3D and the 3D coordinate to be the location relative to the origin (0, 0, 0) of the 3D world. The conversion functions should have these signatures: public Point3D Point2DAndWorldZToPoint3D(Point2D point2D, double worldZ) // usually I want to know where a 2D point will be on the ground plane // so worldZ will usually be zero (but not always) public Point2D Point3DToPoint2D(Point3D point3D) I found this related question, but it only addresses conversion from 3D to 2D (not the reverse), and I'm not sure if the answers are up-to-date. Note, I'm currently using .NET 3.5, but if there are improvements in .NET 4.0 that would help me, please let me know.

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  • com.jcraft.jsch.JSchException: UnknownHostKey

    - by Alex
    I don't know how SSH works and I think that's a simple question. How do I fix that exception: com.jcraft.jsch.JSchException: UnknownHostKey: mywebsite.com. RSA key fingerprint is 22:fb:ee:fe:18:cd:aa:9a:9c:78:89:9f:b4:78:75:b4 I know I should verify that key or something, but there is like zero documentation for Jsch. Here is my code it's really straightforward: import com.jcraft.jsch.JSch; import com.jcraft.jsch.Session; public class ssh{ public static void main(String[] arg){ try{ JSch jsch = new JSch(); //create SSH connection String host = "mywebsite.com"; String user = "username"; String password = "123456"; Session session = jsch.getSession(user, host, 22); session.setPassword(password); session.connect(); } catch(Exception e){ System.out.println(e); } } }

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  • Add Comment and Reaction Count in Wordpress with Disqus plugin

    - by FS
    Okay I'm trying to add comments and reactions count just like what you would normally see on some wordpress blogs like http://johntwang.com/blog/ where on the left top of each post there is ** comment and * reactions* My problem is I can't find the disqus's documentation, where hopefully there is some method I can call to return me the number of reactions and comments. Also if I use the wordpress default method <?php comments_popup_link ('zero','one','more','CSSclass','none');?> it only displays "Comments" not even the comment's number count on the main page. How can I add reaction and comment count with disqus plugin ? edit: well my site is http://www.windows7hacker.com/ I don't know how I suppose to add comments count at first place. But right now if I use the wordpress method, it will return me only comments, which is exactlly one of the problem they have described in their help page I've tired to check the comment count option still doesn't work :(

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  • Is there a good way to convert between BitmapSource and Bitmap?

    - by JohannesH
    As far as I can tell the only way to convert from BitmapSource to Bitmap is through unsafe code... Like this (from Lesters WPF blog): myBitmapSource.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.FromEmptyOptions()); Is there an easier way in the framework? And what is the reason it isn't in there (if it's not)? I would think it's fairly usable. The reason I need it is because I use AForge to do certain image operations in an WPF app. WPF wants to show BitmapSource/ImageSource but AForge works on Bitmaps.

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  • mouse_event WinAPI call not working when cursor is over Flash

    - by friederbluemle
    Hi, I am writing a small program which can simulate mouse clicks at specified positions. Using the Win32 API call mouse_event like so: [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)] public static extern void mouse_event(uint dwFlags, uint dx, uint dy, uint dwData, UIntPtr dwExtraInfo); [Flags] public enum MouseEventFlags : uint { LEFTDOWN = 0x00000002, LEFTUP = 0x00000004, MIDDLEDOWN = 0x00000020, MIDDLEUP = 0x00000040, MOVE = 0x00000001, ABSOLUTE = 0x00008000, RIGHTDOWN = 0x00000008, RIGHTUP = 0x00000010 } mouse_event((uint)(MouseEventFlags.LEFTDOWN | MouseEventFlags.LEFTUP), x, y, 0, UIntPtr.Zero); Works perfectly fine, except when the mouse cursor is over a Flash application. Flash seems to ignore the simulated mouse click. What could be the reason for this? And how do I fix it? Thank you!

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  • Matlab 3d volume visualization and 3d overlay

    - by inf.ig.sh
    Hi, so the question ist pretty much the title. I have a 3d volume loaded as raw data [256, 256, 256] = size(A). It contains only values of zero's and ones, where the 1's represent the structure and 0's the "air". I want to visualize the structure in matlab and then run an algorithm on it and put an overlay on it, let's say in the color red. So to be more precise: How do i visualize the 3d volume. 0's transparent, 1's semitransparent? Plot a line in the 3 d vis as an overlay? I already read the mathworks tutorials and they didn't help. I tried using the set command, but it fails completly saying for every property i try "invalid root property". I hope someone can help.

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  • Nullable One To One Relationships with Integer Keys in LINQ-to-SQL

    - by Craig Walker
    I have two objects (Foo and Bar) that have a one-to-zero-or-one relationship between them. So, Foo has a nullable foreign key reference to Bar.ID and a (nullbusted) unique index to enforce the "1" side. Bar.ID is an int, and so Foo.BarID is a nullable int. The problem occurs in the LINQ-to-SQL DBML mapping of .NET types to SQL datatypes. Since int is not a nullable type in .NET, it gets wrapped in a Nullable<int>. However, this is not the same type as int, and so Visual Studio gives me this error message when I try to create the OneToOne Association between them: Cannot create an association "Bar_Foo". Properties do not have matching types: "ID", "BarID". Is there a way around this?

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  • Why allow concatenation of string literals?

    - by Caspin
    I recently got bit by a subtle bug. char ** int2str = { "zero", // 0 "one", // 1 "two" // 2 "three",// 3 nullptr }; assert( values[1] == "one"_s ); // passes assert( values[2] == "two"_s ); // fails If you have godlike code review powers you'll notice I forgot the , after "two". After the considerable effort to find that bug I've got to ask why would anyone ever want this behavior? I can see how this might be useful for macro magic, but then why is this a "feature" in a modern language like python? Have you ever used string literal concatenation in production code?

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  • IPv6 multicast addresses: Is the Group ID field effectively 112 bits or 32 bits?

    - by Jeremy Friesner
    Hi all, I'm trying to understand the rules for choosing an IPv6 multicast address Group ID, and the RFC seems somewhat inconsistent. For example, in RFC 2373 section 2.7 this diagram is shown: | 8 | 4 | 4 | 112 bits | +------ -+----+----+---------------------------------------------+ |11111111|flgs|scop| group ID | +--------+----+----+---------------------------------------------+ ... but then in section 2.7.2 it shows this: | 8 | 4 | 4 | 80 bits | 32 bits | +------ -+----+----+---------------------------+-----------------+ |11111111|flgs|scop| reserved must be zero | group ID | +--------+----+----+---------------------------+-----------------+ So my question is, are the upper 80 bits of the Group ID field usable or not? If they are usable, is it only under certain circumstances (e.g. when using non-Ethernet networking technology?) What problems should I expect to experience if I set these bits when multicasting over an Ethernet LAN?

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  • SmtpClient.SendAsync(); Not working on 64bit computer.

    - by j-t-s
    Hi All, Okay, Only a couple weeks ago I had an old 32bit computer, but had to buy a new computer, which happens to be 64bit. I've rewritten the method that sends e-mails asynchonously and it just does not work. And does NOT throw any exceptions either. What gives? I have also tried the Async method code found iin MSDN, and the BlackWasp tutorial code, and MANY others. They're all the same! The only difference here seems to be the fact that I'm now on a 64bit computer. How can I get around this? Google/MSDN has been of zero help. Thanks

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  • How To AutoScroll a DataGridView during Drag and Drop

    - by Mason
    One of the forms in my C# .NET application has multiple DataGridViews that implement drag and drop to move the rows around. The drag and drop mostly works right, but I've been having a hard time getting the DataGridViews to AutoScroll - when a row is dragged near the top or bottom of the box, to scroll it in that direction. So far, I've tried implementing a version of this solution. I have a ScrollingGridView class inheriting from DataGridView that implements the described timer, and according to the debugger, the timer is firing appropriately, but the timer code: SendMessage(Handle, WM_VSCROLL, (IntPtr)scrollDirectionInt, IntPtr.Zero); doesn't do anything as far as I can tell, possibly because I have multiple DataGridViews in the form. I also tried modifying the AutoScrollOffset property, but that didn't do anything either. Investigation of the DataGridView and ScrollBar classes doesn't seem to suggest any other commands or functions that will actually make the DataGridView scroll. Can anyone help me with a function that will actually scroll the DataGridView, or some other way to solve the problem?

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  • Connect to a wireless network programmatically

    - by Josh Adams
    I'm trying to write an application that connects to my company's wireless network automatically on windows XP. I've found the Wireless LAN API but it requires me to have some hotfix installed on the machine, and you need to have sp2 or higher(There are machines with SP1, and I'm required to support any XP machine). I've tried to find some samples about Wireless Zero Configuration on MSDN but with no luck, only samples I've found are for WinCE, I think Microsoft stopped supporting it. In addition I couldn't find where to download the dll and header file for working with the WZC. There must be a way to do it and work on any service pack because I've found Zwlancfg by ENGL

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  • socat usage for FIFO speed vs socket speed on localhost

    - by Fishy
    Hello, As per a suggestion on stackoverflow, to compare IPC on a single machine using a) sockets (TCP) on localhost to localhost b) using FIFOs (between Java and C) To answer (a), I used netcat to gauge transfer speed (91 MBytes/sec)[1] (b) Q: How can I test FIFO write speed using socat? My approach(where /tmp/gus is created using mkfifo on RHEL): dd if=/dev/zero of=/tmp/gus bs=1G count=1 but i get: 1073741824 bytes (1.1 GB) copied, 1.1326 seconds, 948 MB/s Does this mean writing to a FIFO ~10 times faster? Or is my experiment completely wrong ? Thank you Sporsi [1] From machine A to B across 1Gbps link, this number dropped to ~80 MBytes/sec - I expected localhost to be much higher ...

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  • XML-RPC with PHP and GoDaddy? Confusion sets in.

    - by Chris Cooper
    Hey folks, I am attempting to work with XML-RPC via PHP on a GoDaddy server. This same server is hosting a Wordpress Blog that makes use of XML-RPC and is functioning, though that may be unrelated... Whenever I attempt to use any functions that are integrated into PHP for use with XML-RPC, I get an error (function list here: http://us3.php.net/manual/en/ref.xmlrpc.php) e.g.: Fatal error: Class 'xmlrpc_client' not found Is this because XML-RPC's PHP functions are not enabled on my server? If so, how do I go about enabling those - it would seem I would have to install the XML-RPC library to do so and of course I cannot do that on a shared server. Doesn't Wordpress use the same batch of XML-RPC functions though (it works fine)? I think I have managed to thoroughly confuse myself. I have zero experience with XML-RPC.

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  • Display empty textbox using Html.TextBoxFor on a not-null property in an EF entity.

    - by hungster
    I am using Entity Framework (v4) entities. I have an entity called Car with a Year property of type integer. The Year property does not allow NULL. I have the following in my Create view: <%= Html.TextBoxFor(model => model.Year) %> I am required to return a new Car object (due to other requirements) in my HttpGet Create action in the CarController. Currently, a zero is displayed in the Year textbox because the Year property does not allow NULL. I would like to display an empty textbox in the Create view. How do I do this?

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  • Adaboost algorithm and its usage in face detection

    - by Hani
    I am trying to understand Adaboost algorithm but i have some troubles. After reading about Adaboost i realized that it is a classification algorithm(somehow like neural network). But i could not know how the weak classifiers are chosen (i think they are haar-like features for face detection) and how finally the H result which is the final strong classifier can be used. I mean if i found the alpha values and compute the H ,how am i going to benefit from it as a value (one or zero) for new images. Please is there an example describes it in a perfect way? i found the plus and minus example that is found in most adaboost tutorials but i did not know how exactly hi is chosen and how to adopt the same concept on face detection. I read many papers and i had many ideas but until now my ideas are not well arranged. Thanks....

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  • Multiple skins in ASP.NET MVC using StringTemplate

    - by Jamie
    I am considering the StringTemplate view engine for my ASP.NET MVC application. This application will be built with one skin, but I then expect many more, often very similar skins to be developed for it. This is primiarly the reason for my choice of StringTemplate as the view engine, as there will be zero logic in the views. In my head, I envisaged having each skin in a directory under the 'Views' directory in the folder structure, then maintaining a data structure which maps hostnames to skin directories. An obvious disadvantage of this approach is that I will have to explicitly specify my view files - an alternative might be to hack the implementation of the View() method to change the /views/controller/action standard path and insert an extra layer. Is anyone aware of any examples of implementations along these lines using ASP.NET MVC and StringTemplate at present? Can anyone forsee any potential problems with my approach? Thanks in advance.

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  • filling Bugzilla quip list

    - by Gerhard
    "Walking on water and developing software from a specification are easy if both are frozen." At the top of the Bugzilla page it prints a humorous/insightful quip. I have a list that I have been building up over the years as I encounter good one liners To brighten up my fellow developers days. What source did you use to fill your Bugzilla quip list. Online I have found only one interesting list. So maybe you can share some of the good quips from your bugzilla quiplist or maybe point me towards a interesting source online "I have an infinite capacity to do more work as long as you don't mind that my quality approaches zero - Dilbert."

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  • storekit In app purchase invalid product identifiers

    - by Sridhar
    Hello, I am getting zero product identifiers from SKProductsRequest I did the following steps a) created a In App Purchase Test User account under 'Manage Users' in iTunes Connect b) created some in app purchase products under 'Manage Your In App Purchases'. c) Loaded the app onto the iPhone, went to Settings-Store and logged out of the regular store d) set a breakpoint in the (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response callback All the submitted Product ID's are in the response.invalidProductIdentifiers category. When submitting the request I use either the Product ID's used under b) directly or I tried to prefix them with the Bundle ID: Thanks In Adavance Raghu,

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  • How to programmatically open the application menu in a .NET CF 2.0 application

    - by PabloG
    I'm developing an C# / .NET CF 2.0 application: it's supposed to be used with the touchscreen deactivated, then, I'm looking for a way to programmatically open the application menu (not the Windows menu). Looking here I tried to adapt the code to the .NET CF 2 but it doesn't work (no error messages neither) public const int WM_SYSCOMMAND = 0x0112; public const int SC_KEYMENU = 0xF100; private void cmdMenu_Click(object sender, EventArgs e) { Message msg = Message.Create(this.Handle, WM_SYSCOMMAND, new IntPtr(SC_KEYMENU), IntPtr.Zero); MessageWindow.SendMessage(ref msg); } Any ideas? TIA, Pablo After Hans answer, I edited the code to Message msg = Message.Create(this.Handle, WM_SYSCOMMAND, new IntPtr(SC_KEYMENU), new IntPtr(115)); // 's' key and added a submenu option as &Search, but it doesn't make any difference

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  • Simplest way on iPhone to unzip downloaded file?

    - by Scott Pendleton
    Goal: download a zipped file, unzip it, and save it in the iPhone app's Documents directory. The following code makes use of the initWithGzippedData method that was added to NSData in the Molecule app found here: http://www.sunsetlakesoftware.com/molecules As adapted to my app: NSString *sFolder = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"]; NSString *sFileName = [sFolder stringByAppendingPathComponent:@"MyFile.db"]; NSURL *oURL = [NSURL URLWithString: @"http://www.isystant.com/Files/MyFile.zip"]; NSData *oZipData = [NSData dataWithContentsOfURL: oURL]; NSData *oData = [[NSData alloc] initWithGzippedData:oZipData]; [oZipData release]; b = [oData writeToFile:sFileName atomically:NO]; NSLog(@"Unzip %i", b); Result: A zip file is successfully downloaded. From it a new, supposedly unzipped file is created in the Documents directory with the desired name (MyFile.db) but it has zero bytes. Anybody see the problem? Or else is there a simpler way to unzip a downloaded file than the one used in the Molecules app?

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  • flex combobox hide and show down arrow

    - by crazy horse
    I am looking to implement a search text box as follows: When user starts typing in and there are non-zero results, the text box will open up and display the results below it. When the user selects a result, the text box closed, but this time with a down-arrow (like a combobox) so that the user can re-open the list. I suspect what I really need is a combobox with ability to hide/show the down arrow. How do I do this in Flex? Thanks in advance.

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  • I keep getting a "System InvalidOperationException occurred in System Windows Forms dll" error in VB

    - by Heartrent
    I've just started learning VB.NET with VS 9.0; a small application I'm working on keeps returning an "A first chance exception of type System InvalidOperationException occurred in System Windows Forms dll" error from the Immediate Window. The application has almost zero functionality so far, it consists of a menu strip with: File About |Open |Save |Save As |Quit The only code I have written opens an Open File dialog, a Save As dialog, an About window with background sound and an OK button, and the Quit button which exits. Since there is almost no code for me to search through, I can't understand why there would be an error. The program runs just fine when I'm debugging it too.

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