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• strod() and sprintf() inconsistency under GCC and MSVC

  - by Dmitry Sapelnikov

  I'm working on a cross-platform app for Windows and Mac OS X, and I have a problem with two standard C library functions: strtod() (string-to-double conversion) ? sprintf (when used for outputting double-precision floating point numbers) -- their GCC and MSVC versions return different results. I'm looking for a well-tested cross-platform open-source implementation of those functions, or just for a pair of functions that would correctly and consistently convert double to string and back. I've already tried the clib GCC implementation, but the code is too long and too dependent on other source files, so I expect the adaptation to be difficult. What implementations of string-to-double and double-to-string functions would you recommend?

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• Tarballing without git metadata

  - by zaf

  My source tree contains several directories which are using git source control and I need to tarball the whole tree excluding any references to the git metadata or custom log files. I thought I'd have a go using a combo of find/egrep/xargs/tar but somehow the tar file contains the .git directories and the *.log files. This is what I have: find -type f . | egrep -v '\.git|\.log' | xargs tar rvf ~/app.tar Can someone explain my misunderstanding here? Why is tar processing the files that find and egrep are filtering? I'm open to other techniques as well.

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• C/C++ Allegro program causes Windows 7 to switch to Aero Basic

  - by Matt H

  Hi SO, I'm just trying out the allegro library, and here is the code which I've got so far: #include <allegro.h> int main(int argc, char *argv[]) { allegro_init(); // initialize the allegro libraries install_keyboard(); // initialize keyboard functions set_color_depth(16); // set the color depth set_gfx_mode(GFX_AUTODETECT_WINDOWED, 640, 480, 0, 0); // set up 640*480px window BITMAP *pic = NULL; pic = load_bitmap("C:/picture.bmp", NULL); // load the picture blit(pic, screen, 0, 0, 0, 0, 1000, 1000); readkey(); destroy_bitmap(pic); return 0; } END_OF_MAIN() It works fine, but when I run it, while the program's window is open, Windows 7 changes the theme from Aero to Aero basic. If you aren't sure what I mean, this pops up (I got this from Google, which is why it says Vista rather than Windows 7): 1) Why? 2) How can I ensure that this doesn't happen?

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• Looking for a component (.NET or COM/ActiveX) that can play AVI files in a WinForms app

  - by MusiGenesis

  I'm looking for something like the Windows Media Player control that can be hosted on a form. The WMP doesn't work for me because I need a control that can play a continuously-appended playlist of AVI files in sequence, so that the transition from one file to the next happens seamlessly (i.e. without any glitches or pauses in the video and audio). With WMP, there's always a delay between files of half a second or so. Does anyone know of a control (it can be either commercial or open-source) that can do this? I assume anything like this wraps DirectX, and that's OK too.

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• Visualize compiler warnings

  - by christoffer

  I'm looking for a way to visualize compiler warnings and remarks, by annotating or otherwise showing which lines cause a report. This is much like a modern IDE like NetBeans or Eclipse already does, but I'd like to take output from several compilers (and other static code analysis tools) at once, and create one single annotation in order to get a better overview. The rationale is that we've seen some problems go completely undetected by, say, Visual Studio 2005, but accurately detected with a proprietary ARM compiler, and vice versa. Cross-referencing warnings could potentially locate problems better, but doing so completely manually is infeasible. Have you heard of such a tool? Could an open-source IDE like Eclipse be extended to use several compilers at once, or has it already been done?

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• Drupal - Lightbox -> iframe node displaying entire website with views

  - by kilrizzy

  I am attempting to make a view that would list thumbnails of my projects, then when clicking them enlarge the photo using lightbox and list out some text and a link to the website. I am not sure if there is a way I can just add text to the lightbox using views so right now I have it using a field for Lightbox2 iframe: thumb200wh-node page. Open my entire website again in the lightbox instead of just the node: http://jeffkilroy.com/portfolio_boxes Is there a way to just display the node from the views module or is there a way to just use an image but modify the description so that I can put text in?

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• Is there any way to set or code breakpoints conditionally?

  - by froadie

  I've been wondering this for a while - is there a way to code/program breakpoints...? Conditionally? For example, can I specify something like - "when this variable becomes this value, break and open the debugger"? (Would be quite useful, especially in long loops when you want to debug loop execution of a late loop value.) I suppose this may be IDE-specific since debugging is implemented differently in different IDEs... I'd be interested to know how to do this in any IDE, but specifically in Eclipse and Visual Studio.

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• One large file or multiple small files?

  - by Dan

  I have an application (currently written in Python as we iron out the specifics but eventually it will be written in C) that makes use of individual records stored in plain text files. We can't use a database and new records will need to be manually added regularly. My question is this: would it be faster to have a single file (500k-1Mb) and have my application open, loop through, find and close a file OR would it be faster to have the records separated and named using some appropriate convention so that the application could simply loop over filenames to find the data it needs? I know my question is quite general so direction to any good articles on the topic are as appreciated as much as suggestions. Thanks very much in advance for your time, Dan

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• Getting the version of a COM object

  - by Shao

  I am accessing a .NET COM object from C++. I want to know the version information about this COM object. When I open the TLB in OLEVIEW.exe I can see the version information associated with the coclass. How can I access this information from C++? This is the information I get: [ uuid(XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX), version(1.0), custom(XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX, XXXX) ] coclass XXXXXXXX{ [default] interface XXXXXXXX; interface _Object; interface XXXXXXXX; };

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• Verify windows log-in via smart card

  - by Ronen Rabinovitz

  Hi I need to verify in my WPF application if the user log in to his computer via password or via smart-card. Both login options are available in my company clients but my application need to open only in the smart-card login. All the clients are windows 7 OS. I look at some sites: http://technet.microsoft.com/en-us/library/ff404285(v=ws.10).aspx http://www.codeproject.com/Articles/240655/Using-a-Smart-Card-Certificate-with-NET-Security-i and I'm thinking I need to get the enhanced key usage (EKU) attribute field. If the EKU is empty = then the user was loged via password and not via smartcard. I only need this simple check, I do not care for creating/validations on certificates atc.

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• Preventing the opening of a form on a add button click

  - by Jonathan

  Hey guys, Did you guys know how to prevent the open of a Form when I click on a add button? Maybe using beforeShowForm? function(formid) { if(jQuery('#gridap').getGridParam('selrow')) { idgridap=jQuery('#gridap').getGridParam('selrow'); jQuery('#FK_numerocontrato_ap',formid).val(idgridap).attr('readonly','readonly'); } else { // I want to prevent the openning of the add form here and maybe show an alert using the "alertcap" } } CHECAROW; $grid->setNavEvent('add','beforeShowForm',$checarowid); BTW, there's a way to call the alertmod of jqgrid and add a custom message to it? tks!

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• How to do a sample rate conversion in Windows (and OSX)

  - by Paperflyer

  I am about to write an audio file converter for my side job at the university. As part of this I would need sample rate conversion. However, my professor said that it would be pretty hard to write a sample rate converter that was both of good quality and fast. On my research on the subject, I found some functions in the OSX CoreAudio-framework, that could do a sample rate conversion (AudioConverter.h). After all, an OS has to have some facilities to do that for its own audio stack. Do you know a similar method for C/C++ and Windows, that are either part of the OS or open source? I am pretty sure that this function exists within DirectX Audio (XAudio2?), but I seem to be unable to find a reference to it in the MSDN library.

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• SQL Server Compact with Visual Studio 2008

  - by Thomas

  I am running SQL server 2008 and Visual Studio 2008 on Vista. I downloaded SQL server compact 3.5 SP1 from Microsofts website and ran the install. When I open the server explorer for any windows application that I'm working on with VS 2008 and right click on data connections and then on add a connection a dialog comes up with available data providers. The problem is that SQL compact is not one of the options. Any idea why SQL compact is not showing up as a data provider in VS 2008?

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• SqlCommand asp.net C#

  - by emilios

  i you please help me out with my problem i am trying to create a function that output the data on a dropdownlist an setting my parameters my code goes as follow : public static List<string> GetTracks(out List<string> trackIds, string conferenceId) { var res = new List<string>(); trackIds = new List<string>(); var sqlCon = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString); SqlCommand cmd = new SqlCommand("select Track_name,Track_ID from TrackCommittee where Conference_id= @conferenceId", sqlCon); DataSet ds = new DataSet(); cmd.Connection.Open(); cmd.Parameters.Add(new SqlParameter("@conferenceId", conferenceId)); using (SqlDataReader sdr = cmd.ExecuteReader()) { while (sdr.Read()) { res.Add(sdr.GetString(sdr.GetOrdinal("Track_name"))); trackIds.Add(sdr.GetInt32(sdr.GetOrdinal("Track_ID")).ToString()); } } cmd.Connection.Close(); cmd.Dispose(); return res; } thanking you in advance

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• qt in windows7 environment

  - by sneha

  Hello everyone, i am having problem with running an example from qt which uses win32 libraries when i compile i dnt get any errors but when i run it is not able to open the application (.exe) file in windows 7.but when i compile this example in windowsXP it works fine. can anyone let me know whether i need to change my .pro file inorder to get it worked under windows 7. PLease help me out.thanks in advance. here is my .pro file # ------------------------------------------------- # Project created by QtCreator 2010-04-16T11:45:43 # ------------------------------------------------- QT += network QT += xml QT += opengl TARGET = Application TEMPLATE = app SOURCES += main.cpp \ mainwindow.cpp \ Tools.cpp \ Objects.cpp HEADERS += mainwindow.h \ Tools.h\ Objects.h unix { OBJECTS_DIR = .obj MOC_DIR = .moc } # UNIX installation isEmpty(PREFIX):PREFIX = /usr/local unix { headers.path = $$PREFIX/include/ZIP headers.files = $$HEADERS target.path = $$PREFIX/lib INSTALLS += headers \ target } !mac:x11:LIBS += -ldns_sd win32:LIBS += -ldnssd LIBPATH = C:/Temp/mDNSResponder-107.6/mDNSWindows/DLL/Debug INCLUDEPATH += c:/Temp/mDNSResponder-107.6/mDNSShared

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• How to determine if an application is using the GPU

  - by Andrew

  I'm looking for a way to determine how to know whether an application is using the GPU with Objective-C. I want to be able to determine if any applications currently running on the system have work going on on the GPU (ie: a reason why the latest MacBook Pros would switch to the discrete graphics over the Intel HD graphics). I've tried getting the information by crossing the list of active windows with the list of windows that have their backing location stored in video memory using Quartz Window Services, but all that does is return the Dock application and I have other applications open that I know are using the GPU (Photoshop CS5, Interface Builder), that and the Dock doesn't require the 330m.

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• Reporting Services SQL Server 2005 File Share Error

  - by NicholasM

  Hi, I have a problem with Reporting Services, on an XP box, trying to save subscription reports onto a Windows 7 box over the network. No matter the permissions or accounts used by reporting services it always comes back with "A logon error occurred when attempting to access the file share. The user account or password is not valid." Since this is saving reports over the network and both admin accounts and open network/file permissions to everyone were both tried so I'm left wondering if this is an issue with Reporting Services 2005 has troubles with Windows 7 over the network. Any help would be appreciated, Thanks.

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• Seeting up MySQL database

  - by mathew

  I do have single database and near about 11 tables. while my web page is opening informations from these 11 tables will be accessed same time. according to my current settings what I did now is for each table database is opening and closing. say I had given username and password to open databse for each table and close after retrieving information from that table. Is this the right way to do it?? I feel because of this the database is opeing and closing 11 times!!!! Am I right?? is this the right way to do that?? THanks Mathew

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• How to launch a file protocol URL with an anchor from Java?

  - by Jeff C

  From a Java program, I need to launch the default browser on a local HTML file, pointed to an anchor inside the file. In Java SE 6, the java.awt.Desktop.browse method will open the file, but will not honor the anchor, so something like the following opens the file at the top, but does not page the browser to the anchor: Desktop.getDesktop("file:///C:/foo/bar.html#anchor"); Sun says here http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6477862 that anchors are not supported in the file URI protocol. Does anyone have a better answer? I can use Java SE 6. I would be OK with a Windows only solution.

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• Stop a postback in javascript

  - by jmpena

  hello, i have an ASP webform with a JQuery Thickbox, i have an image that opens the thickbox when user click. once open the thickbox it shows me a grid with several rows and a button to select one and after the user select the record it returns to the main page the recordselected and cause a __doPostBack() BUT! sometimes in IE6 it stay loading the postback and never ends i have to refresh the page and when it refresh it shows everything fine. but i dont want the postback stay loading AND it does not happend always. i have to call a __doPostBack because i need to find info related to the selected record. thanks.

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• Eclipse and Actionscript 3

  - by teapot7

  Does anyone know of any good solutions (Eclipse plugins presumably) for using Eclipse to develop in ActionScript 3? There are a number of solutions for developing with ActionScript 2, leveraging MTASC, Swfmill and other open source tools, but I'm specifically looking for AS3 support. It's simple enough to use Eclipse as an editor, and a place from which to invoke Ant scripts to compile with the Adobe command line tools, but I'm looking for syntax colouring, autocompletion, refactoring, debugging - all the modern IDE luxuries. Other tool I've used: FlashDevelop: free and good, but Windows only and doesn't have refactoring. Nevertheless a nice piece of work. IntelliJ Idea: very nice ActionScript 3 support, though not quite as slick as their Java support. Unfortunately AS3 is not supported in the free/community edition of Idea and I'm not ready to purchase the full version as yet.

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• Combine 2 apps into one DB?

  - by coffeeaddict

  I'm debating whether to use the same DB for both my blog and my wiki. Since both are open source, and both install the required tables which is a very small number of tables for both apps, I'm thinking about just using one database to represent both sets of tables. Is this common and safe to do? I am hesitant because I always create a new DB for every application I create or use. But in this case, I don't want to spend another $10 a month from my shared hosting just to get another SQL 2008 DB to host a wiki..it's small and I'm the only one using the wiki. I just want to point the wiki to my existing blog DB that's already running and have the wiki wizard auto gen the tables to that DB and just hold both sets of tables there.

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• Need help parsing file/writing script

  - by Bradley Herman

  Hey all, I have been doing nothing but web development over the last few years and haven't written any Java or C++ in what feels like forever. I don't necessarily need to use these languages, so I'm entirely open to suggestion. I was given an email list by a client to import into their mailchimp account yesterday and unfortunately, Mailchimp couldn't read the file. It's a text file, but I don't believe it's tab delimited (which would make this much, much easier for me). A small portion of the file (I've changed last names and email addresses) can be viewed here: http://sparktoignite.com/patients.txt If anyone has suggestions on how I can get this into a Mailchimp readable format (csv, tab delimited txt, excel) please let me know. I feel like 3 years ago I would've been able to do this in a matter of minutes, but given that I haven't touched anything other than RoR, PHP, and jQuery for the last few years, I don't know where to start. Thanks!

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• Opening AFOpenFlowView already in landscape mode

  - by justin

  I'm using the open source CoverFlow replacement from here: http://fajkowski.com/blog/2009/08/02/openflow-a-coverflow-api-replacement-for-the-iphone/ When I detect that a certain view has gone from portrait to landscape mode, I instantiate an AFCoverFlowView and push it onto the navigation stack. If I do so in response to (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation The cover flow view comes up as though the phone were still in portrait mode. If I push the view in response to (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation it works perfectly - the view comes up in landscape mode with the phone in landscape mode Unfortunately, the device doesn't reliable get willRotateToInterfaceOrientation messages. I have tried making sure that [[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications]; is in loadView but that doesn't help with the notificiations. So, my questions are: Is there a way to reliably get willRotateToInterfactOrientation? if not How do I instruct AFCoverFlowView to come up in landscape mode (if the device is already in landscape mode)

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• DJ JWebBrowser: how to show but disable Address and Button bars?

  - by Nikolay Kuznetsov

  I am using chrriis.dj.nativeswing.swtimpl.components.JWebBrowser in my swing application to open web page. The page is going to show "Facebook Authentication" page and I want to prevent user from inputting some other URL other than I specify and also Forward and Back buttons should be visible but not has no affect. So following functions are applicable for my goal setButtonBarVisible(true); setLocationBarVisible(true); Once user completes the authentication I will handle the locationChanged event. @Override public void locationChanged(WebBrowserNavigationEvent arg0) { System.out.println("locationChanged!"); .... } }

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