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• PLT Scheme Extracting field ids from structures

  - by Steve Knight

  I want to see if I can map PLT Scheme structure fields to columns in a DB. I've figured out how to extract accessor functions from structures in PLT scheme using the fourth return value of: (struct-type-info) However the returned procedure indexes into the struct using an integer. Is there some way that I can find out what the field names were at point of definition? Looking at the documentation it seems like this information is "forgotten" after the structure is defined and exists only via the generated-accessor functions: (<id>-<field-id> s). So I can think of two possible solutions: Search the namespace symbols for ones that start with my struct name (yuk); Define a custom define-struct macro that captures the ordered sequence of field-names inside some hash that is keyed by struct name (eek).

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• Signals and slots in PyQt

  - by Skilldrick

  In the past I've had some experience of Qt in C++. I've now started using PyQt, and finding it a bit bewildering. There doesn't seem to be any definitive source of documentation, apart from a small amount at Riverbank. I guess the first thing I'd like to know is that there's an initial hump with PyQt, and it does get easier. The Riverbank docs talk about new style signals and slots for PyQt, as well as old style. They suggest that the new style is better, but I was wondering if that is what most users of PyQt do.

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• Invalid Argument IE 8 jQuery

  - by Deshiknaves

  Hi, I have this particular script that runs so that the flash elements don't show up on top of my slide out navigation. This redraws that flash element with wmode as opaque and so it shows up under the navigation. Works perfectly with Chrome and FireFox but not with IE. In IE I get an Invalid Argument in jquery.min.js code 0 Line 103 char 460. Can anyone help me as to why? If I comment out the second line of code inside the function then there is no error, but then doesn't work in FireFox. Any help is appriciated. $(window).load(function(){ $('embed').attr('wmode','opaque'); $('object').append('<param name="wmode" value="opaque">'); $('object').wrap('<div>'); });

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• phing and phpUnderControl ... working together

  - by Paul Hanssen

  Hi, Has anyone got these to work together seemlessly? I have tried, had some success using the plugin at http://phing.info/trac/wiki/Users/Documentation/CruiseControl, but have failed to: Get the metrics graphs working (nothing appears) Enable the "PMD" - project mess detection - reports Are there any other ant-specific commands that must (can) be run in addition to my phing build script? Also, the front page of the reports section dumps a heap of log information, and I'm trying to get rid of that too. Cheers for any help ... we are running phing 2.3.0 and phpUnderControl 0.4.7. Paul

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• RegEx: Split String at Capitalized Letters and Non-capitalized letters to Create Small Cap Fonts

  - by Otaku

  So i've purposefully stayed away from RegEx as just looking at it kills me...ugh. But now I need it and could really use some help to do this in .NET (C# or VB.NET). I need to split a string based on capitalization or lack thereof. For example: I'm not upPercase "I" "'m not up" "P" "ercase" or FBI Agent Winters "FBI A" "gent " "W" "inters" The reason I'm doing this is to manually create small caps, in which non-capitalized strings will be sent to uppercase and their font size made 80% of the original font size. Appreciate any help that could be provided here.

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• easyui how to set a event on load tab error

  - by joaner

  I'm use easyui tabs load html content: contents.tabs('add',{ title: title, href: href, closable: true, extractor:function(data){ console.log(data); return data; } }); sometime I maybe got a 404, 500 response, but the response error message is not display in the new window. The tab window always show loading style. So I try to find a onLoadError event to catch this error in office manual: http://www.jeasyui.com/documentation/tabs.php , but not exists. Please tell me how to do let me exit the loading status.

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• URL encoding for latin characters in Java

  - by sammichy

  I'm trying to read in an image URL. As mentioned in the java documentation, I tried converting the URL to URI by String imageURL = "http://www.shefinds.com/files/Christian-Louboutin-Décolleté-100-pumps.jpg"; URL url = new URL(imageURL); url = new URI(url.getProtocol(), url.getHost(), url.getFile(), null).toURL(); URLConnection conn = url.openConnection(); InputStream is = conn.getInputStream(); I get the following error when the code is executed http://www.shefinds.com/files/Christian-Louboutin-Décolleté-100-pumps.jpg What am I doing wrong and what is the right way to encode this URL?

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• What web browser engine, version, and capabilities are used to display web pages inside Visual Studio 2010?

  - by Phrogz

  My company is developing a plugin/add-on for Visual Studio 2010. When the user asks to display the help for our product, we plan on opening an HTML page (or suite of pages) within Visual Studio. I'm helping to design and implement the help system. What web engine/version is used within Visual Studio 2010? According to Wikipedia it is not Trident(!). Am I allowed to load remote JavaScript content (via a <script> element)? Am I allowed to use XHR to load remote content? Will my page be trusted and have access to the FileSystemObject? I would appreciate any resources you can give me on programming specifically to the 'web' capabilities of VisualStudio2010-as-a-browser.

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• How to bind a List of a DataObject to a Grid with BindingSources?

  - by citronas

  In an assembly I created a class like the following: [DataObject(true)] public class A { public int Foo{get;set;} [DataObjectMethod[DataObjectMethodType.Select)] public static List<A> GetAllA(string ConnectionString) { // return filled List<A> } } Now I want to display this List with a Gridcontrol under Winforms. I though of a DataGrid. Though I'm coming from ASP.net I'd first think of this.dataGridView1.DataSource = A.GetAllA(ConnectionString) Works, but I'd prefer a better databinding with BindingSources. (Because I've always heard that thats the way to go) I managed to drop a BindingSource onto the form and set the DataSource property to class A. But where can I set the SelectMethod and its parameters? If I set DataSource property of the dataGridView to the BindingSource, it will only display an empty line. Is this the right way to go? Will it only require some additional clicks in the wizard, or do I need to read tons of documentation to get this working?

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• Tracking graphics tablet input in C#

  - by Martin

  I'm writing an XNA application with C#, and I want to be able to control the application with a graphics tablet. All I need to be able to do is track the position and pressure of the pen on the tablet, it would be nice to have some built in gesture recognition but I'm willing to build that myself if needed. My first attempt at this was to use the vbtablet library. However, when I sent this to a friend it failed to work. It seems that the underlying technology is quite old and not supported by some tablets. My second attempt is to play with the Microsoft.Ink system. This looks promising, but I know very little about this subject and I'm struggling to make it work properly - for example I can't find how to read the raw tablet input and disable mouse pointer mode on the tablet when using an InkOverlay. What's the best system to use and what good documentation is there for a beginner in this field?

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• Entitiy Framework: "Update Database from Model" instead of "Generate Database from Model"

  - by David

  Hey everyone, I have created a Entity Framework 4 model with Visual Studio 2010 and generated a database from it. Now I found myself adding new properties (with default values), changing documentation of columns, changing names of columns, changing types of columns several times. All tasks that do not require much "extra work" in order not to be possible to be achieved automatically (in my humble opinion). Everytime I did "Generate Database from Model" and lost of course the table data. Is there a way just to update the database's architecture so to say - leaving the table data untouched? Maybe with some user interaction especially when changing types etc.? Or would this functionality be simply too difficult to be realized to work in a reliable way? Thanks in advance! Cheers, David

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• Marshaling an array of IntPtrs in C#

  - by mcoolbeth

  From safe, managed code in C#, I would like to call a function in a C API that receives an array of pointers (void**). I have the corresponding managed array of IntPtr objects, but the Marshal methods advertised in the documentation at MSDN do not seem sufficient to provide and IntPtr to an unmanaged block of memory with the correct content. I had hoped to obtain an IntPtr with 'Marshal.AllocHGlobal' and then assign the correct content using 'Marshal.Copy', but it seems the function has not been overloaded for an array of IntPtr. Any thoughts on the best way to do this? Thanks in advance.

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• Passing dynamic CSS to jQuery.animate

  - by harpo

  The documentation of jQuery.animate states that The only required parameter is a map of CSS properties. This map is similar to the one that can be sent to the .css() method, except that the range of properties is more restrictive. So, why does this work $('#con div').css( { top : function(i) { console.log(i); return (i * 500) + 'px'; } } ); and this doesn't? $('#con div').animate( { top : function(i) { console.log(i); return (i * 500) + 'px'; } } ); The console shows that the function is being evaluated for css, but not for animate. Am I missing something? By the way, I'm using 1.4.2.

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• How to define clock input in Xilinx

  - by seventeen

  Hey, I have almost no experience with Xilinx. I have a group project for a Digital Logic course that is due soon, where my partner, who was supposed to take care of the Xilinx simulations decided to bail on me. So here I am trying to figure it out last minute. I have designed a synchronous counter using a few JK Flip Flops and I need to define the CLK input for the FJKCs. I have drawn up the correct schematic, but I cannot figure out how to define a clock input. Any help appreciated, and yes, this is homework. I just can't find any basic xilinx documentation/tutorials online and I honestly don't have time to learn the whole IDE.

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• ANTLR JavaScript Target

  - by kunalsawlani

  Hello, I have been using ANTLR to generate a parser + tree grammar for a mark up language with Java target which works fine. Now I am trying to get the target in JavaScript to use it in my web browser. However, I have not been able to locate any good documentation on how to go about doing this. I am using eclipse with ANTLR IDE, and when i specify the language as JavaScript, I get the following errors. Multiple markers at this line (10): internal error: group JavaScript does not satisfy interface ANTLRCore: mismatched arguments on these templates [treeParser(grammar, name, scopes, tokens, tokenNames, globalAction, rules, numRules, bitsets, labelType, ASTLabelType, superClass, members, filterMode)] (10): internal error: java.util.NoSuchElementException: no such attribute: filterMode in template context [treeParser] If anyone could help me out with this or point me to some material which I could read about the JavaScript target with ANTLR, it would be great. Thanks

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• Reverse-engineer a Javascript object?

  - by TruMan1

  I have a Javascript object that I want to pass in more parameters, but the documentation is non-existant. My only option seems to be to reverse engineer the Javascript object to see what parameters and values I can pass in. For example, I want to see if there is a "zoom" parameter for the object and what values I can pass into the "mapType" parameter: <script type="text/javascript" src="http://maps.google.com/maps?oe=utf-8&amp;file=api&amp;v=2&amp;key=your-gmap-key"></script> <script type="text/javascript" src="https://share.findmespot.com/spot-widget/js/SpotMain.js"></script> <script type="text/javascript"> var widget = new Spot.Ui.LiveWidget({ renderTo: "spot-live-widget", feeds: [ "0Wl3diTJcqqvncI6NNsoqJV5ygrFtQfBB" ], height: 400, width: 500, mapType: "physical" }); </script> <div id="spot-live-widget"/> Any ideas on how to do that?

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• django urls.py regex isn't working

  - by Phil

  This is for Django 1.2.5 and Python 2.7 on Wamp Server running apache version 2.2.17. My problem is that the my URLConf in urls.py isn't redirecting, it's just throwing a 404 error. urls.py: from django.conf.urls.defaults import * # Uncomment the next two lines to enable the admin: #from django.contrib import admin #admin.autodiscover() urlpatterns = patterns('', (r'^app/$', include('app.views.index')), # Uncomment the admin/doc line below to enable admin documentation: #(r'^admin/doc/', include('django.contrib.admindocs.urls')), # Uncomment the next line to enable the admin: #(r'^admin/', include(admin.site.urls)), ) views.py from django.http import HttpResponse def index(request): return HttpResponse("Hello World") I'm getting the following error: ImportError at /app/ No module named index I'm stumped as I'm only learning Django, can anybody see something wrong with my code? Here's my PythonPath: ['C:\Windows\system32\python27.zip', 'C:\Python27\Lib', 'C:\Python27\DLLs', 'C:\Python27\Lib\lib-tk', 'C:\wamp\bin\apache\Apache2.2.17', 'C:\wamp\bin\apache\apache2.2.17\bin', 'C:\Python27', 'C:\Python27\lib\site-packages', 'c:\wamp\www\seetwo']

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• Arguments On a Console eMbedded Visual C++ Application

  - by Nathan Campos

  I'm trying to develop a simple application that will read some files, targeted for Windows CE. For this I'm using Microsoft eMbedded Visual C++ 3. This program(that is for console) will be called like this: /Storage Card/Test coms file.cmss As you can see, file.cmss is the first argument, but on my main I have a condition to show the help(the normal, how to use the program) if the arguments are smaller than 2: if(argc < 2) { showhelp(); return 0; } But when I execute the program on the command-line of Windows CE(using all the necessary arguments) I got the showHelp() content. Then I've checked all the code, but it's entirelly correct. But I think that eVC++ don't use argc and argv[] for arguments, then I want some help on how to determine the arguments on it.

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• How Can I List a TDictionary in Alphabetical Order by Key in Delphi 2009?

  - by lkessler

  How can I use a TEnumerator to go through my TDictionary in sorted order by key? I've got something like this: var Dic: TDictionary<string, string>; begin Dic := TDictionary<string, string>.create; Dic.Add('Tired', 'I have been working on this too long'); Dic.Add('Early', 'It is too early in the morning to be working on this'); Dic.Add('HelpMe', 'I need some help'); Dic.Add('Dumb', 'Yes I know this example is dumb'); { The following is what I don't know how to do } for each string1 (ordered by string1) in Dic do some processing with the current Dic element Dic.Free; end; So I would like to process my dictionary in the order: Dumb, Early, HelpMe, Tired. Unfortunately the Delphi help is very minimal in describing how TEnumerator works and gives no examples that I can find. There is also very little written on the web about using Enumerators with Generics in Delphi.

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• dlopen() with dependencies between libraries

  - by peastman

  My program uses plugins, that are loaded dynamically with dlopen(). The locations of these plugins can be arbitrary, so they aren't necessarily in the library path. In some cases, one plugin needs to depend on another plugin. So if A and B are dynamic libraries, I'll first load A, then load B which uses symbols defined in A. My reading of the dlopen() documentation implies that if I specify RTLD_GLOBAL this should all work. But it doesn't. When I call dlopen() on the second library, it fails with an error saying it couldn't find the first one (which had already been loaded with dlopen()): Error loading library /usr/local/openmm/lib/plugins/libOpenMMRPMDOpenCL.dylib: dlopen(/usr/local/openmm/lib/plugins/libOpenMMRPMDOpenCL.dylib, 9): Library not loaded: libOpenMMOpenCL.dylib Referenced from: /usr/local/openmm/lib/plugins/libOpenMMRPMDOpenCL.dylib Reason: image not found How can I make this work?

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• Serial Number For Telerik Grid in MVC

  - by JIJIL

  I need to add a column to telerik grid which shows the serials number Please Help.. Thanks

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• Xcode SVN Error: 160028 Transaction is out of date

  - by Ben

  Description: Out of date:'' in transaction '2639-1' Anyone can help? Thanks

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• Showing HTML comment strings (<!-- -->) in HTML files

  - by Andrei

  Hello all. I'm building a source code search engine, and I'm returning the results on a HTML page (aspx to be exact, but the view logic is in HTML). When someone searches a string, I also return the whole line of code where this string can be found in a file. However, some lines of code come from HTML/aspx files and these lines contain HTML specific comments (). When I try to print this line on the HTML page, it interprets it as a comment and does not show it on the screen....how should I go about solving this so that it actually shows up? Any help would be welcomed. Thanks. edit: err...i see now that firebug could help me with this: <!-- -->

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• PowerBuilder Indeterminate Progress Bar

  - by Adam Hawkes

  I have a somewhat-long-running stored procedure being called from a PB application. I want the UI to show an indicator that it is processing, but I don't know the exact progress. That is, I can't say whether it is 10% or 90% done. All I know is when it is done. To give the user something to look at I'd like to put a "Inderterminate" (horizontal) progress bar on the window somewhere. I've looked at the documentation for the built-in HProgressBar control and don't see how to force this behavior. Short of writing my own control or importing another one, is there a way to accomplish this?

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• How to pass -f specdoc option through rake task

  - by dorelal

  I am using rails 2.3.5 .rake spec works fine. This is from spec --help. spec --help -f, --format FORMAT[:WHERE] Specifies what format to use for output. Specify WHERE to tell the formatter where to write the output. All built-in formats expect WHERE to be a file name, and will write to $stdout if it's not specified. The --format option may be specified several times if you want several outputs Builtin formats: silent|l : No output progress|p : Text-based progress bar profile|o : Text-based progress bar with profiling of 10 slowest examples specdoc|s : Code example doc strings nested|n : Code example doc strings with nested groups indented html|h : A nice HTML report failing_examples|e : Write all failing examples - input for --example failing_example_groups|g : Write all failing example groups - input for --example How do I pass -f specdoc through rake task.

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