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• How to set an image based on iphone platform in objective-c

  - by Toran Billups

  I'm moving my application from 3.x to 4.x as I prepare for the app store and found that I need to have 2 copies of all my custom pngs - my question is how can I determine what img to show and when. Example - how do I know to show the Find.png vs the [email protected] Is it "safe" or "correct" to look for 4.x specific apis or does the iphone have a way to determine what platform you are on at runtime? Thank you in advance

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• Will 3D games run in a VirtualBox4-hosted Windows system under Ubuntu with Intel GMA X4500HD card?

  - by Ivan

  I've just got a laptop with Intel GMA X4500HD card (which is said to be DirectX10-compliant, while my previous laptop had Intel 82852/855GM and no chance to play modern 3D games at all). It would be nice if I could play some games (like HalfLife 2, StarCraft 2, Fallout 3) from time to time (while I am ok using lo-fi settings and having low performance) but as I strongly prefer Ubuntu environment and don't need Windows usually I'd like to install Windows inside VirtualBox instead of using a dedicated partition and dual-boot. So the question is if VirtualBox can use 3D acceleration of Intel GMA X4500HD if run on Ubuntu.

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• What's the best platform for a static-website?

  - by Earlz

  Hello, I am building a static-website (as in, to change a page, we change the HTML and there is no DB or anything). Well, it will have a number of pages and I don't want to copy and paste the HTML navigation and layout code around everywhere. So what would be the best platform to use in this situation so I can have all my layout and "common" HTML markup all in one place?

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• I finished "Beginning Android Games", should I use its framework?

  - by orod

  I've worked through Mario Zechner's "Beginning Android Games" and have made my own pong and asteroids game using the framework used in the book. I have also downloaded the source code for Replica Island and am able to run that. I like Replica Island's framework over the one I made from reading the book. Some differences are that Replica Island uses different activities for each screen instead of Zechner's Screen class and that Replica Island can use a lot of textures and isn't limited to textures with dimensions of powers of 2. If I'm serious about writing games and apps for Android should I learn Replica Island's framework and use that instead of the one I made while reading Zechner's book?

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• ecommerce platform evaluation

  - by 5YrsLaterDBA

  Anybody has experience with Magento community version and Appach OFBiz? Could you please share your feeling with me? I am trying to find a free ecommerce platform to start with. OFBiz is using Java. Don't know what's the language Magento is using. thanks,

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• Cross platform /dev/null in Python

  - by Tristan

  I'm using the following code to hide stderr on Linux/OSX for a Python library I do not control that writes to stderr by default: f = open("/dev/null","w") zookeeper.set_log_stream(f) Is there an easy cross platform alternative to /dev/null? Ideally it would not consume memory since this is a long running process.

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• How to pipe two CORE::system commands in a cross-platform way

  - by Pedro Silva

  I'm writing a System::Wrapper module to abstract away from CORE::system and the qx operator. I have a serial method that attempts to connect command1's output to command2's input. I've made some progress using named pipes, but POSIX::mkfifo is not cross-platform. Here's part of what I have so far (the run method at the bottom basically calls system): package main; my $obj1 = System::Wrapper->new( interpreter => 'perl', arguments => [-pe => q{''}], input => ['input.txt'], description => 'Concatenate input.txt to STDOUT', ); my $obj2 = System::Wrapper->new( interpreter => 'perl', arguments => [-pe => q{'$_ = reverse $_}'}], description => 'Reverse lines of input input', output => { '>' => 'output' }, ); $obj1->serial( $obj2 ); package System::Wrapper; #... sub serial { my ($self, @commands) = @_; eval { require POSIX; POSIX->import(); require threads; }; my $tmp_dir = File::Spec->tmpdir(); my $last = $self; my @threads; push @commands, $self; for my $command (@commands) { croak sprintf "%s::serial: type of args to serial must be '%s', not '%s'", ref $self, ref $self, ref $command || $command unless ref $command eq ref $self; my $named_pipe = File::Spec->catfile( $tmp_dir, int \$command ); POSIX::mkfifo( $named_pipe, 0777 ) or croak sprintf "%s::serial: couldn't create named pipe %s: %s", ref $self, $named_pipe, $!; $last->output( { '>' => $named_pipe } ); $command->input( $named_pipe ); push @threads, threads->new( sub{ $last->run } ); $last = $command; } $_->join for @threads; } #... My specific questions: Is there an alternative to POSIX::mkfifo that is cross-platform? Win32 named pipes don't work, as you can't open those as regular files, neither do sockets, for the same reasons. The above doesn't quite work; the two threads get spawned correctly, but nothing flows across the pipe. I suppose that might have something to do with pipe deadlocking or output buffering. What throws me off is that when I run those two commands in the actual shell, everything works as expected.

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• Working on a cross platform library...

  - by Alon

  What are the best practices on writing a cross platform library in C++? My development environment is Eclipse CDT on Linux, but my library should have the possibility to compile natively on Windows either (from Visual C++ for example).

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• Platform Independent, Lightweight Programming Language

  - by Jack Mills

  I need to write an extremely lightweight program (trying to get below 8Kb) that performs some simple math. The language also needs to be platform independent. Which language do you think would work the best? (Oh, and no frameworks allowed.)

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• How do games move around objects (in general) (OGL)

  - by user146780

  I'm sure there's not just 1 answer to this but, do game engines actually change the vectors in memory, or use gltransformations? Because pushing and popping the matrix all the time seems inefficient, but if you keep modifying the verticies you cant make use of display lists. So I'm wondering how it's done in general. Thanks

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• scrolling in both directions at the same time...like in many games

  - by Angel

  Hi, I want to create a game which has a grid view...like 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 1 5 6 7 8 9 3 1 3 2 4 6 7 8 9 1 4 6 3 1 5 6 8 9 1 4 6 4 4 7 8 1 5 7 8 8 what i want to do is on my screen it should display only a part of it that is 1 2 3 4 1 2 3 4 1 5 6 7 Rest all should be hidden and scrollable in both the directions at the same time (diagonally) Please give inputs.. Should i use canvas and over it gridView or simply a grid view.. . If yes then how? Thanks

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• Why did Sun develop the Java platform? [closed]

  - by nic28

  Why did Sun (now owned by Oracle, I know) develop the Java Plaform? How does it make business sense? It seems to me like it would be a very expensive project (also, any ideas on how much they spent/are spending to develop/maintain the platform?). Are they making money by selling support or something?

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• Did you love the game Mouse Trap as a kid, or something similar? (Programmer Psychology) [closed]

  - by Robert Oschler

  When I was a kid I absolutely fell in love with games that had as a core feature, the need to understand interconnecting structures. My favorite of all time was Mouse Trap. For the younger crowd out there, this was a very cool board game where you built the mouse trap out of the included plastic pieces as you played, with the end goal to trigger the mouse trap. The fully assembled mouse trap was a Rube Goldberg style invention where one operation triggered the next and the next and so on, until the last step dropped a cage on a little plastic mouse. Sometimes when I'm programming and I'm reviewing a particularly complex interaction between components and objects, while tracking the flow path mentally, I say to myself "It's a Mouse Trap!" and I wonder if my early addiction to that game and others like it was portent to my becoming a programmer. Another realization I have sometimes when looking at my code is how daunted I feel at the share complexity involved, followed by a darker comedic amazement at my expectation that it will all come together and work. How about you? Did you find yourself drawn to games that at their heart featured interacting control paths when growing up? Robert.

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• The builds tools for WindowsKernelModeDriver8.1 (Platform Toolset = 'WindowsKernelModeDriver8.1') cannot be found

  - by Rajeshwar

  I am attempting to build this example. However I am getting the error error MSB8020: The builds tools for WindowsApplicationForDrivers8.1 (Platform Toolset = 'WindowsApplicationForDrivers8.1') cannot be found. To build using the WindowsApplicationForDrivers8.1 build tools, either click the Project menu or right-click the solution, and then select "Update VC++ Projects...". Install WindowsApplicationForDrivers8.1 to build using the WindowsApplicationForDrivers8.1 build tools. I have already installed WDK 8.1 .exe andwhen I right click on the solution I cant find any thing that states "Update VC++ Projects" Any suggestions on how I may resolve this issue and build it. ? I am running Windows 7 and VS2012 Pro.

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• How to play youtube videos which using Youtube.apk for android 2.1 platform

  - by danny

  I have a problem, I have a Youtube.apk that version is 1.5.20, so I would like to play Youtube videos in android 2.1 platform, but some problems: ======================================================================================= I/ActivityManager( 52): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.google.android.youtube/.HomeA} I/ActivityManager( 52): Start proc com.google.android.youtube for activity com.google.android.youtube/.HomeActivity: pid=373 uid=10021 gids={3003} D/installd( 36): DexInv: --- BEGIN '/system/app/YouTube.apk' --- D/dalvikvm( 379): DexOpt: load 106ms, verify 597ms, opt 24ms D/installd( 36): DexInv: --- END '/system/app/YouTube.apk' (success) --- I/ActivityThread( 373): Publishing provider com.google.android.youtube.SuggestionProvider: com.google.android.youtube.suggest.SuggestionProvider I/YouTube ( 373): Distribution channel:mvapp-android-mid120 D/ ( 373): unable to unlink '/data/data/com.google.android.youtube/shared_prefs/youtube.xml.bak': No such file or directory (errno=2) I/AndroidRuntime( 373): AndroidRuntime onExit calling exit(-42) I/ActivityManager( 52): Process com.google.android.youtube (pid 373) has died. D/Zygote ( 33): Process 373 exited cleanly (214) I/UsageStats( 52): Unexpected resume of com.android.launcher while already resumed in com.google.android.youtube W/WindowManager( 52): Rebuild removed 2 windows but added 1 W/InputManagerService( 52): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@4406d498 ============================================================================================= so, How to fix this problem thanks~

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• Which open source social networking platform to use?

  - by vrao

  I want to build a highly secure social networking portal. Like other portals, subscriber users should be able to create a topic, discuss topic, share information about them, and have the ability for notifications/alerts. The added feature, I would like to have is to moderate users. Based on the topic of discussion, users will be asked automated questions and their responses will be processed to provide recommendations. I have no knowledge of social networking portal requirements. I will be coding alone and want to have something up and running in about six months. Which is the easiest open source platform that I should use to develop? I know some.net and sql, but I am open to use other platforms. Please give me your recommendations

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• Problem wit MDAC when trying to compile in VS2008 using x64 bit target platform

  - by grobartn

  I am trying to compile an 32 bit application. I am aware of problems with it but that is why its being compiled on 64 bit version. I am hanging at this problem. Application uses lots of sql stuff. In sqltypes.h file: (provided by MDAC) #ifdef _WIN64 typedef INT64 SQLLEN; typedef UINT64 SQLULEN; typedef UINT64 SQLSETPOSIROW; #else For some reason when its compiled on 32 bit platform it works great But when I try building it on 64 it goes berserk. Error 61 error C2146: syntax error : missing ';' before identifier 'SQLLEN' ..\external\microsoft sdk\include\sqltypes.h 50 It does not recognize INT64, UINT64. Is there something I need to enable so it will work under 64 build process? Missing some #include or #define? Any help would be great Thanks

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• Documentation concerning platform-specific macros in Linux/POSIX

  - by Nubok

  When compiling a C/C++ program under Windows using Visual Studio (or a compiler that tries to be compatible) there is a predefined macro _WIN32 (Source: http://msdn.microsoft.com/en-us/library/b0084kay.aspx) that you can use for platform-specific #ifdef-s. What I am looking for is an analogon under Linux: a macro which tells me that I am compiling for Linux/an OS that claims to be (more or less) POSIX-compatible. So I looked into gcc documentation and found this: http://gcc.gnu.org/onlinedocs/cpp/System_002dspecific-Predefined-Macros.html Applied to my program, the following macros (gcc 4.4.5 - Ubuntu 10.10) looked promising (I hope that I didn't drop an important macro): #define __USE_BSD 1 #define __unix__ 1 #define __linux 1 #define __unix 1 #define __linux__ 1 #define _POSIX_SOURCE 1 #define __STDC_HOSTED__ 1 #define __STDC_IEC_559__ 1 #define __gnu_linux__ 1 #define __USE_SVID 1 #define __USE_XOPEN2K 1 #define __USE_POSIX199506 1 #define _G_USING_THUNKS 1 #define __USE_XOPEN2K8 1 #define _BSD_SOURCE 1 #define unix 1 #define linux 1 #define __USE_POSIX 1 #define __USE_POSIX199309 1 #define __SSP__ 1 #define _SVID_SOURCE 1 #define _G_HAVE_SYS_CDEFS 1 #define __USE_POSIX_IMPLICITLY 1 Where do I find a detailed documentation of them - as to the mentioned Windows-specific macros above? Additionally I'd be interested in macros normally defined for other POSIX-compliant operating systems as *BSD etc.

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• Bulding an multi-platform SWT application using Ant

  - by Mridang Agarwalla

  I'm writing an SWT application which can be used on Windows (32/64 bit) and Mac OSX (32/64 bit). Apart from the JRE I rely on the SWT library found here. I can find four versions of the SWT library depending upon my target platforms (as mentioned above). When building my application, how can I compile using the correct SWT Jar? If possible, I'd like to try and avoid hard-coding the Jar version, platform and architecture. The SWT Jars are named like this: swt-win32-x86_64.jar swt-win32-x86_32.jar swt-macosx-x86_32.jar swt-macosx-x86_64.jar (My project will be an open source project. I'd like people to be able to download the source and build it and therefore I've thought of including all the four versions of the SWT Jars in the source distribution. I hope this is the correct approach of publishing code relying on third-part libraries.) Thanks everyone.

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• Cross-platform SOA framework

  - by ByteMR

  I'm looking for a good cross-platform SOA framework that preferably works with several programming languages like C++, Python, and C#. I recently learned about Thrift, but that doesn't seem to work with MSVC from the documentation I've read and requires the use of Cygwin or MinGW to even compile the Thrift compiler. Does Thrift work with MSVC and if not, are there any alternatives that would meet my needs? Such as being able to generate C# and Python bindings and work on Linux, Mac, and Windows. Any suggestions would be greatly appreciated!

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• acquia drupal error after installing via web platform on iis 7.5

  - by Binder

  I just installed Acquia Drupal using the web platform installer. The entire process went smoothly but when i try to browse the website it say "HTTP Error 404.0 - Not Found The resource you are looking for has been removed, had its name changed, or is temporarily unavailable." Detailed Error Information Module FastCgiModule Notification ExecuteRequestHandler Handler PHP_via_FastCGI Error Code 0x00000000 Requested URL http://localhost:8088/index.php Physical Path C:\inetpub\wwwroot\acquia-drupal\index.php Logon Method Anonymous Logon User Anonymous I'm running IIS 7.5 on windows 7. Please help i've been stuck on this since 2 days now.

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• Windows Platform Installer fails during Orchard Installation

  - by nullnvoid

  I'm attempting to install Orchard 1.0 on a Windows 7 box. It has only just been released. I downloaded and installed the Windows Platform Installer and attempted to install Orchard. The error message is just that the application has stopped working and asks if I want to debug or close the application. The event log contains a single error: "The event logging service encountered an error while processing an incoming event published from Microsoft-Windows-Security-Auditing." I tried installing MVC3 and it worked without issue. Has anyone experienced a similar problem?

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• Portable way to determine the platform's line separator

  - by Adrian McCarthy

  Different platforms use different line separator schemes (LF, CR-LF, CR, NEL, Unicode LINE SEPARATOR, etc.). C++ (and C) make a lot of this transparent to most programs, by converting '\n' to and from the target platform's native new line encoding. But if your program needs to determine the actual byte sequence used, how could you do it portably? The best method I've come up with is: Write a temporary file in text mode with just '\n' in it, letting the run-time do the translation. Read back the temporary file in binary mode to see the actual bytes. That feels kludgy. Is there a way to do it without temporary files? I tried stringstreams instead, but the run-time doesn't actually translate '\n' in that context (which makes sense). Does the run-time expose this information in some other way?

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• Can't load AMD 64-bit .dll on a IA 32-bit platform

  - by Guihua

  I download the Gurobi package for linear programming. I import the corresponding gurobi.jar package. Then run the example program. Then it appears the following errors: Exception in thread "main" java.lang.UnsatisfiedLinkError: C:\gurobi460\win64\win64\bin\GurobiJni46.dll: Can't load AMD 64-bit .dll on a IA 32-bit platform Then I downloaded the window 64 bit Jre, and use the "window--preference--Installed JRE" to install this new JRE. However, it still appeared this error. Could you help me? Thank you !

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• .NET platform independant sync framework

  - by Quandary

  Question: I need to synchronize a few ActionScript files from my computer to a network share (backup). I saw a quick fix would be using Microsoft Sync Framework for this, and write a windows service. My problem is I also use Linux, and before I start with MS vendor lockin, is there any sync framework/library/whatever I could use that works accross platform? Or does the MS sync framework work on Linux, too? It is my understanding that it is a wrapper around some com objects, thus it wouldn't work. All I need is synchronizing files. So never mind the database part, although it would be nice to have it, too.

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