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  • output byte value in assembler

    - by altvali
    I'm a bit ashamed about asking this, but how do i output the value of a byte in assembler? Suppose I have the number 62 in the AL register. I'm targeting an 8086. There seem to be available only interrupts that output it's ascii value.

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  • Working with .NET Project Files and Schemas?

    - by Mitchel Sellers
    I'm working on a project that will require me to take various .vbproj and .csproj files and determine which version of Visual Studio they were built with and then to get information such as the output dll name etc. Does anyone know if there is a schema available for these files? Google and MSDN searches are coming up a bit blank.

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  • Wait for function to finish before starting again.

    - by Matthew Brown
    Good Morning, I am trying to call the same function everytime the user presses a button. Here is what happens at the moment.. User clicks button - Calls function - function takes 1000ms+ to finish (due to animation with jQuery and AJAX calls) What I want to happen is every time the user presses the button it adds the function to the queue, waits for the previous call to finish, and then starts.. Is this possible? Sorry if my explanation is a bit confusing.. Thanks Matthew

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  • devIL causes program to be unable to start correctly

    - by Mark
    I just tried to use devIL and ULIT to help me with opengl texture loading. However, whenever the program starts, I get the error: "The application was unable to start correctly (0xc000007b). Click OK to close the application." What happened? I'm using the Visual C++ 2010 RC, windows 7 64-bit.

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  • How to Determine the Size of MSADO Command Parameters

    - by Adam
    I am new to MS ADO and trying to understand how to set the size on command parameters as created by the command.CreateParameter (Name, Type, Direction, Size, Value) The documentation says the following: Size Optional. A Long value that specifies the maximum length for the parameter value in characters or bytes. ... If you specify a variable-length data type in the Type argument, you must either pass a Size argument or set the Size property of the Parameter object before appending it to the Parameters collection; otherwise, an error occurs. 1.) What should one pass for fixed-size parameters? Is it a "don't care"? I was a bit confused by the example found here, in which they set size to 3 for an adInteger parameter with Value set to a variant of type VT_I2 pPrmByRoyalty->Type = adInteger; pPrmByRoyalty->Size = 3; pPrmByRoyalty->Direction = adParamInput; pPrmByRoyalty->Value = vtroyal; VT_I2 implies two bytes. A tagVARIANT struct is 16 bytes. How did they land on three? I see that the enum value for adInteger happens to be three, but I suspect that is just a coincidence. So it's a bit confusing what to pass for fixed-size parameters. The team I'm working with has always passed sizeof(int) for adInteger, and it seems to work. Is that correct? Now, for "variable-length" parameters: we are instructed by the documentation to pass "the maximum length .. in characters or bytes". 2.) For adVarChar, is it sufficient to pass the max width as defined in the database? 3.) What about the Wide types (e.g. adVarWChar)? Is it characters or bytes? 4.) How about adVariant, which could contain fixed- or variable-length data? 5.) Do arrays ever come into play here? (we don't pass them as parameters, just curious) Any references or personal insights are welcome.

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  • Is it still worth reading Programming Windows by Charles Petzold?

    - by Morke
    I've been wanting to delve a bit deeper in win32 programming, and I was wondering what the best book on this subject is. Most people seem to recommend Programming Windows by Charles Petzold, however, the latest version of this book is from 1998 and deals with windows 98. Is it still worth reading or should I try other books? If so, which ones?

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  • recaptcha still submits form when one word invalid

    - by luckytaxi
    Um so I was in for a little bit of a surprise tonight. I spent a good 20 mins trying to figure out why I was able to submit a form knowing that what I entered into the recaptcha field was invalid. Is it true that you don't need to input the exact words it displays? If it shows me two words and I misspelled one of the words, I still pass validation? Same goes if "hello world" and I input "hell man" it still works.

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  • Need help manipulating WAV (RIFF) Files at a byte level

    - by Eric
    I'm writing an an application in C# that will record audio files (*.wav) and automatically tag and name them. Wave files are RIFF files (like AVI) which can contain meta data chunks in addition to the waveform data chunks. So now I'm trying to figure out how to read and write the RIFF meta data to and from recorded wave files. I'm using NAudio for recording the files, and asked on their forums as well on SO for way to read and write RIFF tags. While I received a number of good answers, none of the solutions allowed for reading and writing RIFF chunks as easily as I would like. But more importantly I have very little experience dealing with files at a byte level, and think this could be a good opportunity to learn. So now I want to try writing my own class(es) that can read in a RIFF file and allow meta data to be read, and written from the file. I've used streams in C#, but always with the entire stream at once. So now I'm little lost that I have to consider a file byte by byte. Specifically how would I go about removing or inserting bytes to and from the middle of a file? I've tried reading a file through a FileStream into a byte array (byte[]) as shown in the code below. System.IO.FileStream waveFileStream = System.IO.File.OpenRead(@"C:\sound.wav"); byte[] waveBytes = new byte[waveFileStream.Length]; waveFileStream.Read(waveBytes, 0, waveBytes.Length); And I could see through the Visual Studio debugger that the first four byte are the RIFF header of the file. But arrays are a pain to deal with when performing actions that change their size like inserting or removing values. So I was thinking I could then to the byte[] into a List like this. List<byte> list = waveBytes.ToList<byte>(); Which would make any manipulation of the file byte by byte a whole lot easier, but I'm worried I might be missing something like a class in the System.IO name-space that would make all this even easier. Am I on the right track, or is there a better way to do this? I should also mention that I'm not hugely concerned with performance, and would prefer not to deal with pointers or unsafe code blocks like this guy. If it helps at all here is a good article on the RIFF/WAV file format.

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  • Simple regex split

    - by user1383058
    I have the following string: string = "Peter Pan, Pete Sampras; Little Pete" And I need to split it up by name: split_string = ["Peter Pan", "Pete Sampras", "Little Pete"] I am trying to use re.findall but am having a bit of trouble with it: print re.findall(r'[,;]', string) [";", ";", ";"] What am I doing wrong here and how would I properly use re.findall here or an equivalent to split up the string?

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  • Create a screen like the iPhone home screen with Scrollview and Buttons

    - by Anthony Chan
    Hi, I'm working on a project and need to create a screen similar to the iPhone home screen: A scrollview with multiple pages A bunch of icons When not in edit mode, swipe through different pages (even I started the touch on an icon) When not in edit mode, tap an icon to do something When in edit mode, drag the icon to swap places, and even swap to different pages When in edit mode, tap an icon to remove it Previously I read from several forums that I have to subclass UIScrollview in order to have touch input for the UIViews on top of it. So I subclassed it overriding the methods to handle touches: - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { //If not dragging, send event to next responder if (!self.dragging) [self.nextResponder touchesBegan:touches withEvent:event]; else [super touchesBegan:touches withEvent:event]; } In general I've override the touchesBegan:, touchesMoved: and touchesEnded: methods similarly. Then in the view controller, I added to following code: - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [touches anyObject]; UIView *hitView = (UIView *)touch.view; if ([hitView isKindOfClass:[UIView class]]) { [hitView doSomething]; NSLog(@"touchesBegan"); } } - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { // Some codes to move the icons NSLog(@"touchesMoved"); } - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { NSLog(@"touchesEnded"); } When I run the app, I have the touchesBegan method detected correctly. However, when I tried to drag the icon, the icon just moved a tiny bit and then the page started to scroll. In console, it logged with 2 or 3 "touchesMoved" message only. However, I learned from another project that it should logged tonnes of "touchesMoved" message as long as I'm still dragging on the screen. (I'm suspecting I have the delaysContentTouches set to YES, so it delays a little bit when I tried to drag the icons. After that minor delay, it sends to signal back to the scrollview to scroll through the page. Please correct me if I'm wrong.) So if any help on the code to perform the above tasks would be greatly appreciated. I've stuck in this place for nearly a week with no hope. Thanks a lot.

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  • Validation framework for .NET Compact Framework 3.5.

    - by Michal Drozdowicz
    Do you know of a fast and simple entity validation framework that could be used in a Compact Framework project? I've done some experiments with FluentValidation (using db4o System.Linq.Expressions, but it's rather slow) and EViL (but it seems a bit half-baked). Can you suggest any other or maybe point me to some resources on how to design such a framework so that it's both easy to use and performant?

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  • Visual Studio Lightswitch Beta2

    - by Elmex
    What are your experiences with Beta2 of Visual Lightswitch? Can it already be used for real life projects? Does anybody know, when the final (RTM) version will be out? I am very intersting in using Lightswitch in the future for RAD, but I am a litte bit self-conscious, if the tool is flexible enough for my dividual requirements and if a Lightswitch solution can be extended with own code !? Can it be mixed with "normal" Silverlight?

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  • Winforms-how do I keep window fully painted/responsive during a long running synchronous request is

    - by Greg
    Hi, Background - For a winforms 3.5 c# application, I would like to keep the main window fully painted/responsive during a long running synchronous request. For example if the user moves the window. Question - Is there a way to achive this WITHOUT having to setup a separate thread or backgroundworker process? (e.g. like a way to call from within my long running transaction, "release a bit of CPU to mainform", at some points) thanks

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  • Choosing a non microsoft language for web development?

    - by Luke Lowrey
    I am resonably experienced with asp.net and would like to learn a new language with a focus on web development. Licensing and hosting costs are why I would like to use something not reliant on microsoft so something based on open source technologies is a plus. I have had a tiny bit of experience with php and did not like it but I guess I could be convinced otherwise. Basically I'd like to know peoples opinion on the the best language for future web development with regards to longivity, resources, frameworks, hosting etc.

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  • How are integers casted to bytes in Java?

    - by helixed
    I know Java doesn't allow unsigned types, so I was wondering how it casts an integer to a byte. Say I have an integer a with a value of 255 and I cast the integer to a byte. Is the value represented in the byte 11111111? In other words, is the value treated more as a signed 8 bit integer, or does it just directly copy the last 8 bits of the integer? Thanks, helixed

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  • LINQ to SQL: To Attach or Not To Attach

    - by bradhe
    So I'm have a really hard time figuring out when I should be attaching to an object and when I shouldn't be attaching to an object. First thing's first, here is a small diagram of my (very simplified) object model. Edit: Okay, apparently I'm not allowed to post images...here you go: http://i.imgur.com/2ROFI.png In my DAL I create a new DataContext every time I do a data-related operation. Say, for instance, I want to save a new user. In my business layer I create a new user. var user = new User(); user.FirstName = "Bob"; user.LastName = "Smith"; user.Username = "bob.smith"; user.Password = StringUtilities.EncodePassword("MyPassword123"); user.Organization = someOrganization; // Assume that someOrganization was loaded and it's data context has been garbage collected. Now I want to go save this user. var userRepository = new RepositoryFactory.GetRepository<UserRepository>(); userRepository.Save(user); Neato! Here is my save logic: public void Save(User user) { if (!DataContext.Users.Contains(user)) { user.Id = Guid.NewGuid(); user.CreatedDate = DateTime.Now; user.Disabled = false; //DataContext.Organizations.Attach(user.Organization); DataContext.Users.InsertOnSubmit(user); } else { DataContext.Users.Attach(user); } DataContext.SubmitChanges(); // Finished here as well. user.Detach(); } So, here we are. You'll notice that I comment out the bit where the DataContext attachs to the organization. If I attach to the organization I get the following exception: NotSupportedException: An attempt has been made to Attach or Add an entity that is not new, perhaps having been loaded from another DataContext. This is not supported. Hmm, that doesn't work. Let me try it without attaching (i.e. comment out that line about attaching to the organization). DuplicateKeyException: Cannot add an entity with a key that is already in use. WHAAAAT? I can only assume this is trying to insert a new organization which is obviously false. So, what's the deal guys? What should I do? What is the proper approach? It seems like L2S makes this quite a bit harder than it should be...

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  • Dotted Border turns to solid if object is animated with jQuery.

    - by Serg Chernata
    I have a simple setup: an image and then a paragraph with a bit of info that is hidden and then slides up over the image on mouse hover. If I try to apply a border-top that is dashed or dotted onto the paragraph it simply turns into a solid line. Is this a known issue with a fix? I even tried adding the dotted border through jQuery and it still comes out as a solid line. <div class="wrap"> <img src="images/fillertxt.jpg" alt="image" /> <img src="images/filler.jpg" class="front" alt="image" /> <p class="info"> This is a short description with a bit of text. </p> </div> .wrap .info { width:204px; height:50px; background:url(images/infobg.jpg) repeat-x #8d9c0c; color:#f7f5ef; padding:3px; position:absolute; top:142px; left:0; border-top:3px dotted #8d9c0c; } $(document).ready(function(){ $("p.info").css("border-top","3px dotted #8d9c0c"); $(function(){ bindTypeOne(); $("input[type=radio]").click(function(){ if ($(this).attr("rel") == "type1"){ bindTypeOne(); } else if ($(this).attr("rel") == "type2"){ bindTypeTwo(); } }); }); function bindTypeOne() { $("div.wrap").hover(function(){ $(this).children("p.info").stop(); $(this).children(".front").stop().animate({"top":"141px"}, 400); },function(){ $(this).children("p.info").stop(); $(this).children(".front").stop().animate({"top":"0"}, 700); }); }; function bindTypeTwo() { $("div.wrap").hover(function(){ $(this).children(".front").stop(); $(this).children("p.info").stop().animate({"top":"80px","border-top":"3px dotted #8d9c0c"}, 400); },function(){ $(this).children(".front").stop(); $(this).children("p.info").stop().animate({"top":"142px"}, 700); }); }; });

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  • Matching 3 out 5 fields - Django

    - by RadiantHex
    Hi folks, I'm finding this a bit tricky! Maybe someone can help me on this one I have the following model: class Unicorn(models.Model): horn_length = models.IntegerField() skin_color = models.CharField() average_speed = models.IntegerField() magical = models.BooleanField() affinity = models.CharField() I would like to search for all similar unicorns having at least 3 fields in common. Is it too tricky? Or is it doable?

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  • Wpf Composite application

    - by Miral
    Hi, I am new to WPF application and are developing a new WPF application which does 4 different things (4 different modules). I was googling around and found regarding WPF composite application. I was reading through the msdn articles but and a few a different place but all the apps are very large and so understanding them is a bit difficult. Has anyone got a very simple WPF composite application or any link where i can find it out?

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  • Regex slow on Windows Server 2008

    - by pjmyburg
    Hi I have a situation where my regular expressions compile extremely slowly on Windows Server 2008. I wrote a small console application to highlight this issue. The app generates its own input and builds up a Regex from words in an XML file. I built a release version of this app and ran it both on my personal laptop (running XP) and the Windows 2008 server. The regular expression took 0.21 seconds to compile on my laptop, but 23 seconds to compile on the server. Any ideas what could be causing this? The problem is only on first use of the Regex (when it is first compiled - thereafter it is fine) I have also found another problem - when using \s+ in the regular expression on the same Windows 2008 server, the memory balloons (uses 4GB+) and the compilation of the Regex never finishes. Is there a known issue with Regex and 64 bit .net? Is there a fix/patch available for this? I cannot really find any info on the net, but I have found a few articles about this same issues in Framework 2.0 - surely this has been fixed by now? More info: The server is running the 64 bit version of the .net framework (3.5 SP1) and on my laptop I have Visual Studio 2008 and the 3.5 framework installed. The regular expression is of the following pattern: ^word$|^word$|^word$ and is constructed with the following flags: RegexOptions.IgnoreCase | RegexOptions.Compiled Edit: Here is a code snippet: StringBuilder regexString = new StringBuilder(); if (!String.IsNullOrEmpty(fileLocation)) { XmlTextReader textReader = new XmlTextReader(fileLocation); textReader.Read(); while (textReader.Read()) { textReader.MoveToElement(); if (textReader.Name == "word") { regexString.Append("^" + textReader.GetAttribute(0) + "$|"); } } ProfanityFilter = new Regex(regexString.ToString(0, regexString.Length - 1), RegexOptions.IgnoreCase | RegexOptions.Compiled); } DateTime time = DateTime.Now; Console.WriteLine("\nIsProfane:\n" + ProfanityFilter.IsMatch("test")); Console.WriteLine("\nTime: " + (DateTime.Now - time).TotalSeconds); Console.ReadKey(); This results in a time of 0.21 seconds on my laptop and 23 seconds on the 2008 server. The XML file consists of 168 words in the following format: <word text="test" />

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  • PHP queue jobs in centOS

    - by Soe Naung Win
    I wrote a PHP shell script which include queuing jobs in centOS with 'at' command. The queue jobs may vary in time and contents which means the system need to keep quite a large number of jobs. The application logic will also be a bit difficult to setup with cronjob. Is there a limit in number of queue jobs in centOS or is there any alternative way of queuing jobs?

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  • Delay On Assembler?

    - by Norm
    Hey, I want to know how i can do delay (Timer) on assembler 16 bit on PC. Thank You for helping, Norm. OS: Windows CODE: delay: inc bx cmp bx,WORD ptr[time] je delay2 jmp delay delay2: inc dx cmp dx,WORD ptr[time2] je delay3 jmp delay mov bx,0 delay3: inc cx cmp cx,WORD ptr[time3] je Finish_delay jmp delay its not work good i need less complicated code

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