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• iTunes Visualization -- What type of code is it written in and what does that code look like?

  - by Christopher Altman

  Being a web developer, I know how event driven user interfaces are written, but do not have insight into other families of code (embedded software like automotive software, automation software on assembly lines, drivers, or the crawling lower-thirds on CNN, etc.) I was looking at the iTunes visualizer (example) and am curious: What code is used to write the visualizer? Objective C? Does it use Core Animation? What type of abstraction does that library offer? What does the code look like? Is it a list of mathematical equations for producing the crazy graphics? Is it a list of key frames with tweening? Is there an array of images, fractals, worm holes, flowers, sparkles, and some magic mixes them together. Or something totally different? I am not looking for a tutorial, just an understanding of how something very different than web development works. Oh yah, I know iTunes is closed source, so all of this is conjecture.

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• Launch Google Maps app

  - by oriharel

  Hi, I'm trying to launch Google maps from my application. I'm using: GeoPoint center = _mapView.getMapCenter(); Uri uri = Uri.parse("geo:"+center.getLatitudeE6()+","+center.getLongitudeE6()); Log.d(LOG_TAG, "Launching Google Maps with Uri: ("+uri+")"); Intent intent = new Intent(Intent.ACTION_VIEW, uri); startActivity(intent); I tested it with a map centered on somewhere in NYC, however Google maps opens not centered there. I followed Android Developer's site reference to use: "geo:latitude,longitude" pattern. the log that you see prints: Launching Google Maps with Uri: (geo:40763500,-73979305) anyone knows what can be the problem?

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• Finding out all about Android Uri class - use and purpose

  - by Peter vdL

  Does anyone have some helpful links to find out about Android Uri's? For example, you get a Uri back from a "take a picture" Intent. What does a URI look like and how do you use it. Why are they used instead of filenames or file handles? The Dev documentation on the Uri class is practically worthless. http://developer.android.com/reference/android/net/Uri.html It is only clear if you already know exactly what it is, and how to use it. Thanks for any links.

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• take out objects from randomizer obj c

  - by David Pollak

  hello everyone, I'm a new "developer" trying to build some iPhone app I'm making an app which gets text from a list of objects in a NSArray and then randomizes them and display one in a TextView, here's the code: - (IBAction)azione{ NSArray *myArray= [NSArray arrayWithObjects: @"Pasta",@"Pizza",@"Wait",@"Go", nil]; int length = [myArray count]; int chosen = arc4random() % length; testo.text = [myArray objectAtIndex: chosen]; } what I want to do now, is when I open the app and get a random object, to take it out from the list, so that it won't be picked again ex. I open the appI get "Pizza"Do the action againI don't get "Pizza" anymore, only "Pasta" "Wait" and "Go" What should I do ? Which code should I use ? Thanks for answers

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• How can HTML5 "replace" Flash?

  - by Kassini

  A topic of debate that's seen a resurgence since the unveiling of the iPad is the issue of Flash versus HTML5. There are those that suggest that HTML5 will one day supplant/replace Adobe Flash. I do not develop software that runs in a browser, so my (limited) understanding is: HTML is a pure-text markup language that is delivered over HTTP to a client browser. The client browser interprets the markup and renders (with varying degrees of success) the page according to an standard specification. Adobe Flash is a propriety framework for working with audio, video, sound and raster/vector graphics. It requires special authoring tools (a compiler perhaps?) and a custom player that's available as a plug-in to most common browsers. Could someone please explain (to this C/C++ developer) how it is possible from a technical/coding point-of-view that a text-based markup language (HTML5) could be considered a replacement to a multimedia framework (Flash)? Please no opinionated arguments - just technical facts.

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• SQL Server - Schema/Code Analysis Rules - What would your rules include?

  - by Randy Minder

  We're using Visual Studio Database Edition (DBPro) to manage our schema. This is a great tool that, among the many things it can do, can analyse our schema and T-SQL code based on rules (much like what FxCop does with C# code), and flag certain things as warnings and errors. Some example rules might be that every table must have a primary key, no underscore's in column names, every stored procedure must have comments etc. The number of rules built into DBPro is fairly small, and a bit odd. Fortunately DBPro has an API that allows the developer to create their own. I'm curious as to the types of rules you and your DB team would create (both schema rules and T-SQL rules). Looking at some of your rules might help us decide what we should consider. Thanks - Randy

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• How can I make Outlook 2007 auto BCC messages to a specific email with specific words in subject usi

  - by tgadd

  So far I have this code from outlookcode.com which I can get to work sending all emails I send to the BCC email. I am not a developer, so I don't have a lot of context to go about editing this myself, or even approaching researching this. If anyone knows how to make this check for words in the subject, or check if the subject equals a certain string, I'd really appreciate it. Private Sub Application_ItemSend(ByVal Item As Object, _ Cancel As Boolean) Dim objRecip As Recipient Dim strMsg As String Dim res As Integer Dim strBcc As String On Error Resume Next ' #### USER OPTIONS #### ' address for Bcc -- must be SMTP address or resolvable ' to a name in the address book strBcc = "[email protected]" Set objRecip = Item.Recipients.Add(strBcc) objRecip.Type = olBCC If Not objRecip.Resolve Then strMsg = "Could not resolve the Bcc recipient. " & _ "Do you want still to send the message?" res = MsgBox(strMsg, vbYesNo + vbDefaultButton1, _ "Could Not Resolve Bcc Recipient") If res = vbNo Then Cancel = True End If End If Set objRecip = Nothing End Sub

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• Git: delete files in a branch, what happens when a merge takes place

  - by Josh

  I'm relatively new to source control (at least complex source control). If I'm developing a set of features in a branch, and I happen to delete some cruft out of the source tree in this branch, what happens when I merge? Are the files properly deleted in the trunk/master? Is there anything I should avoid doing that is typically problematic when developing in a branch? This is a 2-3 developer system, so we're not talking about massive changes to source. I'm told you should pull from the trunk often to avoid tangled manual merge situations, and this makes sense. Thanks, Josh

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• How can a component at designtime determine the project directory

  - by Heinz Z.

  Hello, I write a component which should store some information relative to the project directory. Every time a property of my component is changed it should write a file. So how can a component determine the current project directory at design time. Thanks in advance EDIT: I want to generate a delphi source file every time a property of my component is changed, so that I always get the latest version when I compile my code. Think of it as a kind of code generator. At the moment I set whole path and filename where the source should be stored but I prefer a relative path to the project (or the form/datamodule which contains my component) to make it easier to copy the project on different developer machines.

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• Compile redeclaration error of global variable in C++, but not in C.

  - by coelhudo

  Suppose that I have those three files: a.h //a.h header #include <stdio.h> int int_variable; void a_f() { printf("int_variable: %d\n", int_variable) int_variable++; } b.h //b.h header #include <stdio.h> int int_variable; void b_f() { printf("int_variable: %d\n", int_variable) int_variable++; } main.c //main.c #include "a.h" #include "b.h" int main() { a_f(); b_f(); return 0; } Why compiling in C++ generates redefinition error, but in C doesn't? I am C++ developer, then in C++ makes sense to me, but why in C this is not an error? When I executed the C generated code, the output was: int variable: 0 int variable: 1 Thanks

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• Start Activity with an animation

  - by adityad

  I am trying to start an activity with a custom transition animation. The only way I have found out so far to do this (without using onPendingTransition() in the previous activity) is to use a custom theme on the activity and define either activityOpenEnterAnimation, taskOpenEnterAnimation, windowEnterAnimation or windowAnimationStyle to set the animation. But, none of these attributes are working for me. Some experimentation yielded the following results- If I set the windowAnimationStyle attribute to some custom style which defines values for activityOpenEnterAnimation, taskOpenEnterAnimation, windowEnterAnimation or windowAnimationStyle I can get rid of the default transition animation occurring at the start of the activity. It doesn't show the transition animation using the actual value specified but at least the default animation is not shown. According to the reference doc here, http://developer.android.com/reference/android/R.attr.html I should be able to define an animation at the start of the activity using activityOpenEnterAnimation. But no success so far. Any ideas?

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• How to log into a salesforce.com sandbox?

  - by wesgarrison

  I took over a Rails app and am trying to get the Salesforce.com API credentials set up for my user account. I'm set as a system admin with "Developer Mode" on (though I have no clue what that does, I just saw it set on the previous account.) We have a sandbox. I click the login link on it, enter my sandbox username ([email protected]), enter my password, and get "Login attempt has failed". I know my password is okay since I've logged into the production site several times. Using different domains (test.salesforce.com, etc) doesn't help either.

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• Issue while creating an android project with phonegap

  - by Mohit Jain

  When I try to create native android project in eclipse it works perfectly fine, and that shows my android setup is proper but when I try to create a phonegap project it create a error ie: ./create ~/Documents/workspace/HelloWorld com.fizzysoftware.HelloWorld HelloWorld BUILD FAILED /Users/mohit/Documents/eclipse/android-sdk-macosx/tools/ant/build.xml:710: The following error occurred while executing this line: /Users/mohit/Documents/eclipse/android-sdk-macosx/tools/ant/build.xml:723: Compile failed; see the compiler error output for details. Total time: 5 seconds An unexpected error occurred: ant jar > /dev/null exited with 1 Deleting project... cordova version: 2.7 Android api version 14 Ps: I am a ruby on rails developer. This is my day 1 with phonegap/android/ios

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• How to create a draggable overlayItem in Android 2.1

  - by Zap

  Does anyone know how to make a map overlayitem draggable so I can press and hold it and drag it across the map. I am trying to duplicate the draggable icon behavior that's available on the iPhone. One developer suggested a possible solution is to detect a touch event, get rid of the existing overlay item, draw your own copy of the icon where the overlay item had been, manually animate that as the user drags, and then put the overlay item where the user drops it (getting rid of your manually-drawn icon). Does anyone have sample java code to do this Android 2.1? This would be much appreciated.

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• iPhone SDK: CLocationAccuracy. What constants map to what positioning technology?

  - by buzzappsoftware

  With respect to CLocationManager docs.... Constant values you can use to specify the accuracy of a location. extern const CLLocationAccuracy kCLLocationAccuracyBestForNavigation; extern const CLLocationAccuracy kCLLocationAccuracyBest; extern const CLLocationAccuracy kCLLocationAccuracyNearestTenMeters; extern const CLLocationAccuracy kCLLocationAccuracyHundredMeters; extern const CLLocationAccuracy kCLLocationAccuracyKilometer; extern const CLLocationAccuracy kCLLocationAccuracyThreeKilometers; Given that, I have the following questions. What triangulation method (GPS, cell tower or wi-fi) corresponds to each accuracy level? Does iPhone SDK utilize Skyhook Wireless API? For kCLLocationAccuracyBestForNavigation, there is note stating the phone must be plugged in. Is this enforced or is it just warning the developer the battery is likely to drain quick from using the GPS receiver. Thanks in advance.

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• SSD and programming

  - by Simon Johnson

  I'm trying to put together a business case for getting every developer in our company an Intel SSD drive. The main codebase contains roughly 400,000 lines of code. My theory is that since the code is scattered about in maybe 1500 files, an SSD drive would be substantially faster for compiles. The logic being that many small reads really punishes the seak-time bottle-neck of a traditional hard-drive. Am I right? Is SSD worth the money in productivity gains by reducing the edit/compile cycle time?

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• Decoding subsampled bitmaps in Android

  - by hgpc

  I decode bitmaps from the SD card using BitmapFactory.decodeFile. Sometimes the bitmaps are bigger than what the application needs or that the heap allows, so I use BitmapFactory.Options.inSampleSize to request a subsampled (smaller) bitmap. The problem is that the platform does not enforce the exact value of inSampleSize, and I sometimes end up with a bitmap either too small, or still too big for the available memory. From http://developer.android.com/reference/android/graphics/BitmapFactory.Options.html#inSampleSize: Note: the decoder will try to fulfill this request, but the resulting bitmap may have different dimensions that precisely what has been requested. Also, powers of 2 are often faster/easier for the decoder to honor. How should I decode bitmaps from the SD card to get a bitmap of the exact size I need while consuming as little memory as possible to decode it?

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• What is the bit size of long on 64-bit Windows?

  - by acidzombie24

  Not to long ago someone told me that long are not 64 bits on 64 bit machines and i should always use int. This did not make sense to me. I seen docs (such as the one on apples official site) say that long are indeed 64 bits when compiling for a 64bit CPU. I looked up what it was on windows and found Windows: long and int remain 32-bit in length, and special new data types are defined for 64-bit integers. from http://www.intel.com/cd/ids/developer/asmo-na/eng/197664.htm?page=2 What should i use? should i define something like uw, sw ((un)signed width) as a long if not on windows. Otherwise do a check on the target CPU bitsize?

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• What one-time-password devices are compatible with mod_authn_otp?

  - by netvope

  mod_authn_otp is an Apache web server module for two-factor authentication using one-time passwords (OTP) generated via the HOTP/OATH algorithm defined in RFC 4226. The developer's has listed only one compatible device (the Authenex's A-Key 3600) on their website. If a device is fully compliant with the standard, and it allows you to recover the token ID, it should work. However, without testing, it's hard to tell whether a device is fully compliant. Have you ever tried other devices (software or hardware) with mod_authn_otp (or other open source server-side OTP program)? If yes, please share your experience :)

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• Python noob question - why is my simple regex not working?

  - by coson

  Good Day, I have a simple Python question that I'm having brain freeze on. This code snippet works. But when I substitue "258 494-3929" with phoneNumber, I get the following error below: # Compare phone number phone_pattern = '^\d{3} ?\d{3}-\d{4}$' # phoneNumber = str(input("Please enter a phone number: ")) if re.search(phone_pattern, "258 494-3929"): print "Pattern matches" else: print "Pattern doesn't match!" ####################################################### Pattern does not match Please enter a phone number: 258 494-3929 Traceback (most recent call last): File "pattern_match.py", line 16, in phoneNumber = str(input("Please enter a phone number: ")) File "", line 1 258 494-3929 ^ SyntaxError: invalid syntax C:\Users\Developer\Documents\PythonDemo btw. I did import re and tried using rstrip in case of the \n What else could I be missing? TIA, coson

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• Core Data Image Won't Load Into NSTableView Image Cell

  - by jcady

  In my code I am storing an image into my Core Data model (works fine). If I set up my view to have an NSImageView and bind its Data to Controller Key: selection and modelKeyPath: myImagePath, it works. It will show each image for the selected row. I then create a new column in my NSTableView and drag an image cell onto the column. However, I cannot get my Core Data bindings to have the image show up in the cell. I have tried binding both value and data, but no luck. Since I am sure the image is stored properly, what am I doing wrong in my binding to prevent the image from showing up in the table cell? Thanks so much. (My background: new Cocoa developer who has recently gone through the entire Hillegass book.)

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• Charts - Column chart with extra data

  - by Koran

  Hi, I have some data similar to the following chart: http://developer.yahoo.com/yui/examples/charts/charts-seriescustomization_clean.html Only difference is that for each of the fields - I have some other extra data - say For utlilities - I have a cash reserve for utility - as another field. I would prefer this data point to come above the utilities bar. I have been trying from morning to get this chart working, but I am unable to do so. Could you please let me know if it is possible - someway? Thank you very much in advance. Regards K

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• Need to debug LINQ simple queries in Visual Studio 2010

  - by maxima120

  I often get in a position when I need to know why my LINQ doesnt work as intended... I use object collections and extensions. I dont want spend more than couple of minutes on it. LINQ supposed to make developer's life easier not harder. I hoped VS 2010 will have it fixed but I now use RC and it still doesnt let me type LINQ and check what is going on... Says as before "Expression cannot contain lambda expressions"... Is there some add-on for Visual Studio so I can quickly and effectively run ad-hoc queries and find out what is going on and where I am wrong?

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• Could you help me understand how to create a C# api by setting the scope of methods, objects, proper

  - by highone

  The answer to this SO question says that you can create an api by exposing methods, objects and .ect by setting their scope to public. http://stackoverflow.com/questions/630971/how-to-start-creating-an-application-api-in-net One of the main things I want to expose is the text of a textbox. Would the best way to do this be to create a public static Text property that is updated by the textbox's textchanged event? Also what would a developer do in order to interact with this text property? Would they add a reference to the program .exe in their program? Please help, I'm quite clueless here. Also was not sure how to word this question, feel free it edit if it is unclear.

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• How to configure build numbers in Visual Studio to enable dll comparison

  - by jaminto

  Hi Everyone- I am building a C# solution in Visual Studio 2008 that has several projects and project dependencies. I am looking for a way to change dll version numbers ONLY when the code that builds the project changes. I currently use Beyond Compare to compare my locally built version to the production file system. The goal is to ONLY deploy updated dlls. I am using autoincrementing version numbers, and each time you open visual studio and do a build, all dll version numbers increment. The same goes for a full solution rebuild and when a different developer does a build and tries to deploy. Is there a way that i can configure Visual Studio to ONLY increment the build number based on changed file contents? Is there an add in that will do this?It seems a binary comparison of these files will also fail because of the different version numbers within the dlls. Does anyone know of a better tool compare only the contents of dlls?Thanks in advance.

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