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• Cannot establish maximum resolution on ASUS PB278Q

  - by dentuzhik

  I've recently bought brand new ASUS PB278Q monitor. When trying to connect to my laptop, everything works great, except that I can't get the native resolution of my monitor (2560x1440) working. The automatic is 1920x1080. My graphic card is Nvidia GeForce 320m. Here's output from lspci for it: ~$ lspci | grep VGA 02:00.0 VGA compatible controller: NVIDIA Corporation GT216M [GeForce GT 320M] (rev a2) and also xrandr: ~$ xrandr Screen 0: minimum 8 x 8, current 3286 x 1437, maximum 8192 x 8192 VGA-0 disconnected (normal left inverted right x axis y axis) LVDS-0 connected primary 1366x768+0+669 (normal left inverted right x axis y axis) 344mm x 193mm 1366x768 60.0*+ HDMI-0 connected 1920x1080+1366+0 (normal left inverted right x axis y axis) 600mm x 340mm 1920x1080 60.0*+ 59.9 50.0 30.0 25.0 24.0 60.0 50.0 1680x1050 60.0 1440x900 59.9 1280x1024 75.0 60.0 1280x960 60.0 1280x800 59.8 1280x720 60.0 59.9 50.0 1152x864 75.0 1024x768 75.0 70.1 60.0 800x600 75.0 72.2 60.3 56.2 720x576 50.0 720x480 59.9 640x480 75.0 59.9 59.9 480x576 50.0 480x480 59.9 I have proprietary drivers installed on my machine, here's the info about the monitor from nvidia-settings (Actually I don't have enough reputation to post images, so here's the text): Chip Location: Internal Signal: TDMS Connection link: Single Native resolution: 2560x1440 Refresh rate: 60.00 Hz The monitor is connected to laptop via HDMI cable, and honestly I have no idea what version it is, and what version is my HDMI output of my graphics card. I tried to find how I can figure it out on the web, but had no luck. Also my video card has only VGA and HDMI outs so I can't test neither DVI-D cable nor DisplayPort. So apparently, there's some problem over there. At least I want to know exactly what's going on. I've tried to see if it a linux-specific problem, but windows also gave me the same resolution by default. What I've already tried: Connect through VGA (stupid one, of course it gave me 1920x1080). Checked two HDMI cables (not sure if they're the same or not, as mentioned above). Played around with xrandr and adding custom modes. Didn't help. Surfed for the info a lot on the web, but couldn't get appropriate results. Actually xrandr gives me the following: ~$ cvt 2560 1440 60 # 2560x1440 59.96 Hz (CVT 3.69M9) hsync: 89.52 kHz; pclk: 312.25 MHz Modeline "2560x1440_60.00" 312.25 2560 2752 3024 3488 1440 1443 1448 1493 -hsync +vsync ~$ xrandr --newmode "2560x1440_60.00" 312.25 2560 2752 3024 3488 1440 1443 1448 1493 -hsync +vsync ~$ xrandr Screen 0: minimum 8 x 8, current 3286 x 1437, maximum 8192 x 8192 VGA-0 disconnected (normal left inverted right x axis y axis) LVDS-0 connected 1366x768+0+669 (normal left inverted right x axis y axis) 344mm x 193mm 1366x768 60.0*+ HDMI-0 connected primary 1920x1080+1366+0 (normal left inverted right x axis y axis) 600mm x 340mm 1920x1080 60.0*+ 59.9 50.0 30.0 25.0 24.0 60.0 50.0 1680x1050 60.0 1440x900 59.9 1280x1024 75.0 60.0 1280x960 60.0 1280x800 59.8 1280x720 60.0 59.9 50.0 1152x864 75.0 1024x768 75.0 70.1 60.0 800x600 75.0 72.2 60.3 56.2 720x576 50.0 720x480 59.9 640x480 75.0 59.9 59.9 480x576 50.0 480x480 59.9 2560x1440_60.00 (0x34f) 312.2MHz h: width 2560 start 2752 end 3024 total 3488 skew 0 clock 89.5KHz v: height 1440 start 1443 end 1448 total 1493 clock 60.0Hz ~$ xrandr --addmode HDMI-0 2560x1440_60.00 X Error of failed request: BadMatch (invalid parameter attributes) Major opcode of failed request: 140 (RANDR) Minor opcode of failed request: 18 (RRAddOutputMode) Serial number of failed request: 29 Current serial number in output stream: 30 What I intend to do next: Try another HDMI cable? Try HDMI to DVI-D cable? Try HDMI to DisplayPort cable? Another type of adapters? VGA to DVI-D? Buy another laptop with another graphic card. Damn. My ideas pretty much end here. Any ideas? Any explanations why it isn't working are appreciated.

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• Is there any kind of established architecture for browser based games?

  - by black_puppydog

  I am beginning the development of a broser based game in which players take certain actions at any point in time. Big parts of gameplay will be happening in real life and just have to be entered into the system. I believe a good kind of comparison might be a platform for managing fantasy football, although I have virtually no experience playing that, so please correct me if I am mistaken here. The point is that some events happen in the program (i.e. on the server, out of reach for the players) like pulling new results from some datasource, starting of a new round by a game master and such. Other events happen in real life (two players closing a deal on the transfer of some team member or whatnot - again: have never played fantasy football) and have to be entered into the system. The first part is pretty easy since the game masters will be "staff" and thus can be trusted to a certain degree to not mess with the system. But the second part bothers me quite a lot, especially since the actions may involve multiple steps and interactions with different players, like registering a deal with the system that then has to be approved by the other party or denied and passed on to a game master to decide. I would of course like to separate the game logic as far as possible from the presentation and basic form validation but am unsure how to do this in a clean fashion. Of course I could (and will) put some effort into making my own architectural decisions and prototype different ideas. But I am bound to make some stupid mistakes at some point, so I would like to avoid some of that by getting a little "book smart" beforehand. So the question is: Is there any kind of architectural works that I can read up on? Papers, blogs, maybe design documents or even source code? Writing this down this seems more like a business application with business rules, workflows and such... Any good entry points for that? EDIT: After reading the first answers I am under the impression of having made a mistake when including the "MMO" part into the title. The game will not be all fancy (i.e. 3D or such) on the client side and the logic will completely exist on the server. That is, apart from basic form validation for the user which will also be mirrored on the server side. So the target toolset will be HTML5, JavaScript, probably JQuery(UI). My question is more related to the software architecture/design of a system that enforces certain rules. Separation of ruleset and presentation One problem I am having is that I want to separate the game rules from the presentation. The first step would be to make an own module for the game "engine" that only exposes an interface that allows all actions to be taken in a clean way. If an action fails with regard to some pre/post condition, the engine throws an exception which is then presented to the user like "you cannot sell something you do not own" or "after that you would end up in a situation which is not a valid game state." The problem here is that I would like to be able to not even present invalid action in the first place or grey out the corresponding UI elements. Changing and tweaking the ruleset Another big thing is the ruleset. It will probably evolve over time and most definitely must be tweaked. What's more, it should be possible (to a certain extent) to build a ruleset that fits a specific game round, i.e. choosing different kinds of behaviours in different aspects of the game. This would do something like "we play it with extension A today but we throw out extension B." For me, this screams "Architectural/Design pattern" but I have no idea on who might have published on something like this, not even what to google for.

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• High Resolution Timeouts

  - by user12607257

  The default resolution of application timers and timeouts is now 1 msec in Solaris 11.1, down from 10 msec in previous releases. This improves out-of-the-box performance of polling and event based applications, such as ticker applications, and even the Oracle rdbms log writer. More on that in a moment. As a simple example, the poll() system call takes a timeout argument in units of msec: System Calls poll(2) NAME poll - input/output multiplexing SYNOPSIS int poll(struct pollfd fds[], nfds_t nfds, int timeout); In Solaris 11, a call to poll(NULL,0,1) returns in 10 msec, because even though a 1 msec interval is requested, the implementation rounds to the system clock resolution of 10 msec. In Solaris 11.1, this call returns in 1 msec. In specification lawyer terms, the resolution of CLOCK_REALTIME, introduced by POSIX.1b real time extensions, is now 1 msec. The function clock_getres(CLOCK_REALTIME,&res) returns 1 msec, and any library calls whose man page explicitly mention CLOCK_REALTIME, such as nanosleep(), are subject to the new resolution. Additionally, many legacy functions that pre-date POSIX.1b and do not explicitly mention a clock domain, such as poll(), are subject to the new resolution. Here is a fairly comprehensive list: nanosleep pthread_mutex_timedlock pthread_mutex_reltimedlock_np pthread_rwlock_timedrdlock pthread_rwlock_reltimedrdlock_np pthread_rwlock_timedwrlock pthread_rwlock_reltimedwrlock_np mq_timedreceive mq_reltimedreceive_np mq_timedsend mq_reltimedsend_np sem_timedwait sem_reltimedwait_np poll select pselect _lwp_cond_timedwait _lwp_cond_reltimedwait semtimedop sigtimedwait aiowait aio_waitn aio_suspend port_get port_getn cond_timedwait cond_reltimedwait setitimer (ITIMER_REAL) misc rpc calls, misc ldap calls This change in resolution was made feasible because we made the implementation of timeouts more efficient a few years back when we re-architected the callout subsystem of Solaris. Previously, timeouts were tested and expired by the kernel's clock thread which ran 100 times per second, yielding a resolution of 10 msec. This did not scale, as timeouts could be posted by every CPU, but were expired by only a single thread. The resolution could be changed by setting hires_tick=1 in /etc/system, but this caused the clock thread to run at 1000 Hz, which made the potential scalability problem worse. Given enough CPUs posting enough timeouts, the clock thread could be a performance bottleneck. We fixed that by re-implementing the timeout as a per-CPU timer interrupt (using the cyclic subsystem, for those familiar with Solaris internals). This decoupled the clock thread frequency from timeout resolution, and allowed us to improve default timeout resolution without adding CPU overhead in the clock thread. Here are some exceptions for which the default resolution is still 10 msec. The thread scheduler's time quantum is 10 msec by default, because preemption is driven by the clock thread (plus helper threads for scalability). See for example dispadmin, priocntl, fx_dptbl, rt_dptbl, and ts_dptbl. This may be changed using hires_tick. The resolution of the clock_t data type, primarily used in DDI functions, is 10 msec. It may be changed using hires_tick. These functions are only used by developers writing kernel modules. A few functions that pre-date POSIX CLOCK_REALTIME mention _SC_CLK_TCK, CLK_TCK, "system clock", or no clock domain. These functions are still driven by the clock thread, and their resolution is 10 msec. They include alarm, pcsample, times, clock, and setitimer for ITIMER_VIRTUAL and ITIMER_PROF. Their resolution may be changed using hires_tick. Now back to the database. How does this help the Oracle log writer? Foreground processes post a redo record to the log writer, which releases them after the redo has committed. When a large number of foregrounds are waiting, the release step can slow down the log writer, so under heavy load, the foregrounds switch to a mode where they poll for completion. This scales better because every foreground can poll independently, but at the cost of waiting the minimum polling interval. That was 10 msec, but is now 1 msec in Solaris 11.1, so the foregrounds process transactions faster under load. Pretty cool.

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• Best way to load application settings

  - by enzom83

  A simple way to keep the settings of a Java application is represented by a text file with ".properties" extension containing the identifier of each setting associated with a specific value (this value may be a number, string, date, etc..). C# uses a similar approach, but the text file must be named "App.config". In both cases, in source code you must initialize a specific class for reading settings: this class has a method that returns the value (as string) associated with the specified setting identifier. // Java example Properties config = new Properties(); config.load(...); String valueStr = config.getProperty("listening-port"); // ... // C# example NameValueCollection setting = ConfigurationManager.AppSettings; string valueStr = setting["listening-port"]; // ... In both cases we should parse strings loaded from the configuration file and assign the ??converted values to the related typed objects (parsing errors could occur during this phase). After the parsing step, we must check that the setting values ??belong to a specific domain of validity: for example, the maximum size of a queue should be a positive value, some values ??may be related (example: min < max), and so on. Suppose that the application should load the settings as soon as it starts: in other words, the first operation performed by the application is to load the settings. Any invalid values for the settings ??must be replaced automatically with default values??: if this happens to a group of related settings, those settings are all set with default values. The easiest way to perform these operations is to create a method that first parses all the settings, then checks the loaded values ??and finally sets any default values??. However maintenance is difficult if you use this approach: as the number of settings increases while developing the application, it becomes increasingly difficult to update the code. In order to solve this problem, I had thought of using the Template Method pattern, as follows. public abstract class Setting { protected abstract bool TryParseValues(); protected abstract bool CheckValues(); public abstract void SetDefaultValues(); /// <summary> /// Template Method /// </summary> public bool TrySetValuesOrDefault() { if (!TryParseValues() || !CheckValues()) { // parsing error or domain error SetDefaultValues(); return false; } return true; } } public class RangeSetting : Setting { private string minStr, maxStr; private byte min, max; public RangeSetting(string minStr, maxStr) { this.minStr = minStr; this.maxStr = maxStr; } protected override bool TryParseValues() { return (byte.TryParse(minStr, out min) && byte.TryParse(maxStr, out max)); } protected override bool CheckValues() { return (0 < min && min < max); } public override void SetDefaultValues() { min = 5; max = 10; } } The problem is that in this way we need to create a new class for each setting, even for a single value. Are there other solutions to this kind of problem? In summary: Easy maintenance: for example, the addition of one or more parameters. Extensibility: a first version of the application could read a single configuration file, but later versions may give the possibility of a multi-user setup (admin sets up a basic configuration, users can set only certain settings, etc..). Object oriented design.

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• Reading graph inputs for a programming puzzle and then solving it

  - by Vrashabh

  I just took a programming competition question and I absolutely bombed it. I had trouble right at the beginning itself from reading the input set. The question was basically a variant of this puzzle http://codercharts.com/puzzle/evacuation-plan but also had an hour component in the first line(say 3 hours after start of evacuation). It reads like this This puzzle is a tribute to all the people who suffered from the earthquake in Japan. The goal of this puzzle is, given a network of road and locations, to determine the maximum number of people that can be evacuated. The people must be evacuated from evacuation points to rescue points. The list of road and the number of people they can carry per hour is provided. Input Specifications Your program must accept one and only one command line argument: the input file. The input file is formatted as follows: the first line contains 4 integers n r s t n is the number of locations (each location is given by a number from 0 to n-1) r is the number of roads s is the number of locations to be evacuated from (evacuation points) t is the number of locations where people must be evacuated to (rescue points) the second line contains s integers giving the locations of the evacuation points the third line contains t integers giving the locations of the rescue points the r following lines contain to the road definitions. Each road is defined by 3 integers l1 l2 width where l1 and l2 are the locations connected by the road (roads are one-way) and width is the number of people per hour that can fit on the road Now look at the sample input set 5 5 1 2 3 0 3 4 0 1 10 0 2 5 1 2 4 1 3 5 2 4 10 The 3 in the first line is the additional component and is defined as the number of hours since the resuce has started which is 3 in this case. Now my solution was to use Dijisktras algorithm to find the shortest path between each of the rescue and evac nodes. Now my problem started with how to read the input set. I read the first line in python and stored the values in variables. But then I did not know how to store the values of the distance between the nodes and what DS to use and how to input it to say a standard implementation of dijikstras algorithm. So my question is two fold 1.) How do I take the input of such problems? - I have faced this problem in quite a few competitions recently and I hope I can get a simple code snippet or an explanation in java or python to read the data input set in such a way that I can input it as a graph to graph algorithms like dijikstra and floyd/warshall. Also a solution to the above problem would also help. 2.) How to solve this puzzle? My algorithm was: Find shortest path between evac points (in the above example it is 14 from 0 to 3) Multiply it by number of hours to get maximal number of saves Also the answer given for the variant for the input set was 24 which I dont understand. Can someone explain that also. UPDATE: I get how the answer is 14 in the given problem link - it seems to be just the shortest path between node 0 and 3. But with the 3 hour component how is the answer 24 UPDATE I get how it is 24 - its a complete graph traversal at every hour and this is how I solve it Hour 1 Node 0 to Node 1 - 10 people Node 0 to Node 2- 5 people TotalRescueCount=0 Node 1=10 Node 2= 5 Hour 2 Node 1 to Node 3 = 5(Rescued) Node 2 to Node 4 = 5(Rescued) Node 0 to Node 1 = 10 Node 0 to Node 2 = 5 Node 1 to Node 2 = 4 TotalRescueCount = 10 Node 1 = 10 Node 2= 5+4 = 9 Hour 3 Node 1 to Node 3 = 5(Rescued) Node 2 to Node 4 = 5+4 = 9(Rescued) TotalRescueCount = 9+5+10 = 24 It hard enough for this case , for multiple evac and rescue points how in the world would I write a pgm for this ?

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• ZFS Storage Appliance ? ldap ??????

  - by user13138569

  ZFS Storage Appliance ? Openldap ????????? ???ldap ?????????????? Solaris 11 ? Openldap ????????????? ??? slapd.conf ??ldif ?????????? user01 ??????? ?????? slapd.conf # # See slapd.conf(5) for details on configuration options. # This file should NOT be world readable. # include /etc/openldap/schema/core.schema include /etc/openldap/schema/cosine.schema include /etc/openldap/schema/nis.schema # Define global ACLs to disable default read access. # Do not enable referrals until AFTER you have a working directory # service AND an understanding of referrals. #referral ldap://root.openldap.org pidfile /var/openldap/run/slapd.pid argsfile /var/openldap/run/slapd.args # Load dynamic backend modules: modulepath /usr/lib/openldap moduleload back_bdb.la # moduleload back_hdb.la # moduleload back_ldap.la # Sample security restrictions # Require integrity protection (prevent hijacking) # Require 112-bit (3DES or better) encryption for updates # Require 63-bit encryption for simple bind # security ssf=1 update_ssf=112 simple_bind=64 # Sample access control policy: # Root DSE: allow anyone to read it # Subschema (sub)entry DSE: allow anyone to read it # Other DSEs: # Allow self write access # Allow authenticated users read access # Allow anonymous users to authenticate # Directives needed to implement policy: # access to dn.base="" by * read # access to dn.base="cn=Subschema" by * read # access to * # by self write # by users read # by anonymous auth # # if no access controls are present, the default policy # allows anyone and everyone to read anything but restricts # updates to rootdn. (e.g., "access to * by * read") # # rootdn can always read and write EVERYTHING! ####################################################################### # BDB database definitions ####################################################################### database bdb suffix "dc=oracle,dc=com" rootdn "cn=Manager,dc=oracle,dc=com" # Cleartext passwords, especially for the rootdn, should # be avoid. See slappasswd(8) and slapd.conf(5) for details. # Use of strong authentication encouraged. rootpw secret # The database directory MUST exist prior to running slapd AND # should only be accessible by the slapd and slap tools. # Mode 700 recommended. directory /var/openldap/openldap-data # Indices to maintain index objectClass eq ?????????ldif???? dn: dc=oracle,dc=com objectClass: dcObject objectClass: organization dc: oracle o: oracle dn: cn=Manager,dc=oracle,dc=com objectClass: organizationalRole cn: Manager dn: ou=People,dc=oracle,dc=com objectClass: organizationalUnit ou: People dn: ou=Group,dc=oracle,dc=com objectClass: organizationalUnit ou: Group dn: uid=user01,ou=People,dc=oracle,dc=com uid: user01 objectClass: top objectClass: account objectClass: posixAccount objectClass: shadowAccount cn: user01 uidNumber: 10001 gidNumber: 10000 homeDirectory: /home/user01 userPassword: secret loginShell: /bin/bash shadowLastChange: 10000 shadowMin: 0 shadowMax: 99999 shadowWarning: 14 shadowInactive: 99999 shadowExpire: -1 ldap?????????????ZFS Storage Appliance??????? Configuration SERVICES LDAP ??Base search DN ?ldap??????????? ???? ldap ????????? user01 ???????????????? ???????????? user ????????? Unknown or invalid user ?????????????????? ????????????????Solaris 11 ???????????? ????????????? ldap ????????getent ??????????????? # svcadm enable svc:/network/nis/domain:default # svcadm enable ldap/client # ldapclient manual -a authenticationMethod=none -a defaultSearchBase=dc=oracle,dc=com -a defaultServerList=192.168.56.201 System successfully configured # getent passwd user01 user01:x:10001:10000::/home/user01:/bin/bash ????????? user01 ?????????????? # mount -F nfs -o vers=3 192.168.56.101:/export/user01 /mnt # su user01 bash-4.1$ cd /mnt bash-4.1$ touch aaa bash-4.1$ ls -l total 1 -rw-r--r-- 1 user01 10000 0 May 31 04:32 aaa ?????? ldap ??????????????????????????!

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• Eclipse Hell . . . Failed to read the project description file (.project)

  - by Kobojunkie

  I think Eclipse is trying to make me miserable. A couple of hours ago, my project was working and compiling well. Suddenly that all changed. Eclipse somehow wipes out all changes I have made to my files(activity, manifest etc.) I make sure to save often but when I go to run the project, I get the error that I have a build error. I checked and there was none, so I go to close Eclipse, so I can reopen and see if the errors will go away. Instead what happens is Eclipse wipes clean all my files and I end up with a project on disk with lots of blank code files. I try to run anyway, and I get the error message below. Failed to read the project description file (.project) for 'com.example.android.nfc.simulator.FakeTagsActivity.FakeTagsActivity'. The file has been changed on disk, and it now contains invalid information. The project will not function properly until the description file is restored to a valid state. Anyone have an idea what in the world this is about and how I can rectify this?

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• Managed c++ std::string not accessible in unmanaged c++

  - by Radhesham

  In unmanaged c++ dll i have a function which takes constant std::string as argument Prototype : void read ( const std::string &amp;imageSpec_ ) I call this function from managed c++ dll by passing a std::string. When i debug the unmanaged c++ code the parameter imageSpec_ shows the value correctly but does not allow me to copy that value in other variable. imageSpec_.copy( sFilename, 4052 ); It shows length of imageSpec_ as 0(zero). If i try copying like std::string sTempFileName(imageSpec_); this statement string new string is a empty string. But for std::string sTempFileName(imageSpec_.c_str()); this statement string gets copied correctly. i.e. with charpointer string is copied correctly. Copying this way will need a major change in unmanaged c++ code. I am building unmanaged code in Visual studio 6.0 and managed c++ in Visual studio 2008. Is there any specific setting or code change in managed c++ that will solve the issue?

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• X509Certificate.CreateFromCertFile - the specified network password is not correct

  - by pcampbell

  I have a .NET application that I want to use as a client to call an SSL SOAP web service. I have been supplied with a valid client certificate called foo.pfx. There is a password on the certificate itself. I've located the certificate at the following location: C:\certs\foo.pfx To call the web service, I need to attach the client certificate. Here's the code: public X509Certificate GetCertificateFromDisk(){ try{ string certPath = ConfigurationManager.AppSettings["MyCertPath"].ToString(); //this evaluates to "c:\\certs\\foo.pfx". So far so good. X509Certificate myCert = X509Certificate.CreateFromCertFile(certPath); // exception is raised here! "The specified network password is not correct" return cert; } catch (Exception ex){ throw; } } It sounds like the exception is around the .NET application trying to read the disk. The method CreateFromCertFile is a static method that should create a new instance of X509Certificate. The method isn't overridden, and has only one argument: the path. When I inspect the Exception, I find this: _COMPlusExceptionCode = -532459699 Source=mscorlib Question: does anyone know what the cause of the exception "The specified network password is not correct" ?

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• SSL authentication error: RemoteCertificateChainErrors on ASP.NET on Ubuntu

  - by Frank Krueger

  I am trying to access Gmail's SMTP service from an ASP.NET MVC site running under Mono 2.4.2.3. But I keep getting this error: System.InvalidOperationException: SSL authentication error: RemoteCertificateChainErrors at System.Net.Mail.SmtpClient.m__3 (System.Object sender, System.Security.Cryptography.X509Certificates.X509Certificate certificate, System.Security.Cryptography.X509Certificates.X509Chain chain, SslPolicyErrors sslPolicyErrors) [0x00000] at System.Net.Security.SslStream+c__AnonStorey9.m__9 (System.Security.Cryptography.X509Certificates.X509Certificate cert, System.Int32[] certErrors) [0x00000] at Mono.Security.Protocol.Tls.SslClientStream.OnRemoteCertificateValidation (System.Security.Cryptography.X509Certificates.X509Certificate certificate, System.Int32[] errors) [0x00000] at Mono.Security.Protocol.Tls.SslStreamBase.RaiseRemoteCertificateValidation (System.Security.Cryptography.X509Certificates.X509Certificate certificate, System.Int32[] errors) [0x00000] at Mono.Security.Protocol.Tls.SslClientStream.RaiseServerCertificateValidation (System.Security.Cryptography.X509Certificates.X509Certificate certificate, System.Int32[] certificateErrors) [0x00000] at Mono.Security.Protocol.Tls.Handshake.Client.TlsServerCertificate.validateCertificates (Mono.Security.X509.X509CertificateCollection certificates) [0x00000] at Mono.Security.Protocol.Tls.Handshake.Client.TlsServerCertificate.ProcessAsTls1 () [0x00000] at Mono.Security.Protocol.Tls.Handshake.HandshakeMessage.Process () [0x00000] at (wrapper remoting-invoke-with-check) Mono.Security.Protocol.Tls.Handshake.HandshakeMessage:Process () at Mono.Security.Protocol.Tls.ClientRecordProtocol.ProcessHandshakeMessage (Mono.Security.Protocol.Tls.TlsStream handMsg) [0x00000] at Mono.Security.Protocol.Tls.RecordProtocol.InternalReceiveRecordCallback (IAsyncResult asyncResult) [0x00000] I have installed certificates using: certmgr -ssl -m smtps://smtp.gmail.com:465 with this output: Mono Certificate Manager - version 2.4.2.3 Manage X.509 certificates and CRL from stores. Copyright 2002, 2003 Motus Technologies. Copyright 2004-2008 Novell. BSD licensed. X.509 Certificate v3 Issued from: C=US, O=Equifax, OU=Equifax Secure Certificate Authority Issued to: C=US, O=Google Inc, CN=Google Internet Authority Valid from: 06/08/2009 20:43:27 Valid until: 06/07/2013 19:43:27 *** WARNING: Certificate signature is INVALID *** Import this certificate into the CA store ?yes X.509 Certificate v3 Issued from: C=US, O=Google Inc, CN=Google Internet Authority Issued to: C=US, S=California, L=Mountain View, O=Google Inc, CN=smtp.gmail.com Valid from: 04/22/2010 20:02:45 Valid until: 04/22/2011 20:12:45 Import this certificate into the AddressBook store ?yes 2 certificates added to the stores. In fact, this worked for a month but mysteriously stopped working on May 5. I installed these new certs today, but I am still getting these errors.

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• Encryption is hard: AES encryption to Hex

  - by Rob Cameron

  So, I've got an app at work that encrypts a string using ColdFusion. ColdFusion's bulit-in encryption helpers make it pretty simple: encrypt('string_to_encrypt','key','AES','HEX') What I'm trying to do is use Ruby to create the same encrypted string as this ColdFusion script is creating. Unfortunately encryption is the most confusing computer science subject known to man. I found a couple helper methods that use the openssl library and give you a really simple encryption/decryption method. Here's the resulting string: "\370\354D\020\357A\227\377\261G\333\314\204\361\277\250" Which looks unicode-ish to me. I've tried several libraries to convert this to hex but they all say it contains invalid characters. Trying to unpack it results in this: string = "\370\354D\020\357A\227\377\261G\333\314\204\361\277\250" string.unpack('U') ArgumentError: malformed UTF-8 character from (irb):19:in `unpack' from (irb):19 At the end of the day it's supposed to look like this (the output of the ColdFusion encrypt method): F8E91A689565ED24541D2A0109F201EF Of course that's assuming that all the padding, initialization vectors, salts, cypher types and a million other possible differences all line up. Here's the simple script I'm using to encrypt/decrypt: def aes(m,k,t) (aes = OpenSSL::Cipher::Cipher.new('aes-256-cbc').send(m)).key = Digest::SHA256.digest(k) aes.update(t) << aes.final end def encrypt(key, text) aes(:encrypt, key, text) end def decrypt(key, text) aes(:decrypt, key, text) end Any help? Maybe just a simple option I can pass to OpenSSL::Cipher::Cipher that will tell it to hex-encode the final string?

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• Use MTOM/streaming from C# calling a webservice in java exposed via jaxws

  - by raticulin

  We have this webservice created with jax-ws @WebService(name = "Mywebser", targetNamespace = "http://namespace") @MTOM(threshold = 2048) @SOAPBinding(style = SOAPBinding.Style.DOCUMENT, use = SOAPBinding.Use.LITERAL, parameterStyle = SOAPBinding.ParameterStyle.WRAPPED) public class Mywebser { @WebMethod(operationName = "doStreaming", action = "urn:doStreaming") @WebResult(name = "return") public ResultInfo doStreaming(String username, String pwd, @XmlMimeType("application/octet-stream") DataHandler data, boolean overw){ ... } } The generated client side looks like this: @WebMethod(action = "urn:doStreaming") @WebResult(targetNamespace = "") @RequestWrapper(localName = "doStreaming", targetNamespace = "http://namespace", className = "com.mypack.client.doStreaming") @ResponseWrapper(localName = "doStreamingResponse", targetNamespace = "http://namespace", className = "com.mypack.client.doStreamingResponse") public ResultInfo doStreaming( @WebParam(name = "arg0", targetNamespace = "") String arg0, @WebParam(name = "arg1", targetNamespace = "") String arg1, @WebParam(name = "arg2", targetNamespace = "") DataHandler arg2, @WebParam(name = "arg3", targetNamespace = "") boolean arg3); By using it this way it uses streaming properly (verified we can pass an argument of 80mb when the jvm had less allowed. MywebserService serv = ...; Mywebser wso = serv.getMywebserPort(new MTOMFeature()); Map<String, Object> ctxt = ((BindingProvider) wso).getRequestContext(); ctxt.put(JAXWSProperties.HTTP_CLIENT_STREAMING_CHUNK_SIZE, 8192); DataHandler dataHandler = new DataHandler(new FileDataSource("c:\\temp\\A.dat")); arcres = wso.doStreaming("a", "b", dataHandler, true); We generate a clienet for .net, with VS2008, using "Add Web Reference", we get this C# code: [System.Web.Services.Protocols.SoapDocumentMethodAttribute("urn:doStreaming",RequestNamespace="http://namespace",ResponseNamespace="http://namespace",Use=System.Web.Services.Description.SoapBindingUse.Literal,ParameterStyle=System.Web.Services.Protocols.SoapParameterStyle.Wrapped)] [return: System.Xml.Serialization.XmlElementAttribute("return",Form=System.Xml.Schema.XmlSchemaForm.Unqualified)] public ResultInfo doStreaming( [System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)] string arg0, [System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)] string arg1, [System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified,DataType="base64Binary")] byte[] arg2, [System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)] bool arg3) Apparently this is not using streaming? The type base64Binary of arg2 seems not the right one? In java it's a DataHandler. By testing it with low memory on the java side we can see it is not using streaming as it fails with OOM. Does someone knows if this is possible, and if so how? Our environment: server: jdk1.6, jaxws 2.1.7 client: C# 2.0, visual studio 2008

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• Deleting file with SharePoint List web service fails

  - by Robert MacLean

  I am trying to delete a file from SharePoint using the list web service which is failing with the following error. Error Code: 0x81020030 Message: Invalid file name Detail: The file name you specified could not be used. It may be the name of an existing file or directory, or you may not have permission to access the file. The update XML I sent through is: <Batch OnError="Continue" PreCalc="TRUE" ListVersion="0" ViewName="{8FE4E2C8-939E-4462-ABA2-D633EED7F76E}"><Method ID="1" Cmd="Delete"><Field Name="ID">84</Field><Field Name="FileRef">http://win-4h0xp59sn75:40414/Shared%20Documents/del.txt</Field></Method></Batch> The SharePoint server error logs indicate: ERROR: Failed to OpenThreadToken, LastError=1008 The file you are attempting to save or retrieve has been blocked from this Web site by the server administrators. Things I have tried I've tried the changes in #1372971 which has no helped. I have also tried the changes recommended on the Microsoft Social site, which has also not helped. I have confirmed that the txt file extension is not blocked as indicated here. In addition I can remove the file via the website, it is just on the web service that this fails. The permissions are correct (or rather not in play) as I am running as a SharePoint administrator, which is the same account that uploaded it via the copy web service.

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• OpenXML SDK: Make Excel recalculate formula

  - by chiccodoro

  I update some cells of an Excel spreadsheet through the Microsoft Office OpenXML SDK 2.0. Changing the values makes all cells containing formula that depend on the changed cells invalid. However, due to the cached values Excel does not recalculate the formular, even if the user clicks on "Calculate now". What is the best way to invalidate all dependent cells of the whole workbook through the SDK? So far, I've found the following code snippet at http://cdonner.com/introduction-to-microsofts-open-xml-format-sdk-20-with-a-focus-on-excel-documents.htm: public static void ClearAllValuesInSheet (SpreadsheetDocument spreadSheet, string sheetName) { WorksheetPart worksheetPart = GetWorksheetPartByName(spreadSheet, sheetName); foreach (Row row in worksheetPart.Worksheet. GetFirstChild().Elements()) { foreach (Cell cell in row.Elements()) { if (cell.CellFormula != null && cell.CellValue != null) { cell.CellValue.Remove(); } } } worksheetPart.Worksheet.Save(); } Besides the fact that this snippet does not compile for me, it has two limitations: It only invalidates a single sheet, although other sheets might contain dependent formula It does not take into account any dependencies. I am looking for a way that is efficient (in particular, only invalidates cells that depend on a certain cell's value), and takes all sheets into account. Update: In the meantime I have managed to make the code compile & run, and to remove the cached values on all sheets of the workbook. (See answers.) Still I am interested in better/alternative solutions, in particular how to only delete cached values of the cells that actually depend on the updated cell.

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• High Profile ASP.NET websites

  - by nandos

  About twice a month I get asked to justify the reason "Why are we using ASP.NET and not PHP or Java, or buzz-word-of-the-month-here, etc". 100% of the time the questions come from people that do not understand anything about technology. People that would not know the difference between FTP and HTTP. The best approach I found (so far) to justify it to people without getting into technical details is to just say "XXX website uses it". Which I get back "Oh...I did not know that, so ASP.NET must be good". I know, I know, it hurts. But it works. So, without getting into the merit of why I'm using ASP.NET (which could trigger an endless argument for other platforms), I'm trying to compile a list of high profile websites that are implemented in ASP.NET. (No, they would have no idea what StackOverflow is). Can you name a high-profile website implemented in ASP.NET? EDIT: Current list (thanks for all the responses): (trying to avoid tech sites and prioritizing retail sites) Costco - http://www.costco.com/ Crate & Barrel - http://www.crateandbarrel.com/ Home Shopping Network - http://www.hsn.com/ Buy.com - http://www.buy.com/ Dell - http://www.dell.com Nasdaq - http://www.nasdaq.com/ Virgin - http://www.virgin.com/ 7-Eleven - http://www.7-eleven.com/ Carnival Cruise Lines - http://www.carnival.com/ L'Oreal - http://www.loreal.com/ The White House - http://www.whitehouse.gov/ Remax - http://www.remax.com/ Monster Jobs - http://www.monster.com/ USA Today - http://www.usatoday.com/ ComputerJobs.com - http://computerjobs.com/ Match.com - http://www.match.com National Health Services (UK) - http://www.nhs.uk/ CarrerBuilder.com - http://www.careerbuilder.com/

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• Spring 3.0 making JSON response using jackson message converter

  - by dupdup

  i configure my messageconverter as Jackson's then class Foo{int x; int y} and in controller @ResponseBody public Foo method(){ return new Foo(3,4) } from that i m expecting to return a JSON string {x:'3',y:'4'} from server without any other configuration. but getting 404 error response to my ajax request If the method is annotated with @ResponseBody, the return type is written to the response HTTP body. The return value will be converted to the declared method argument type using HttpMessageConverters. Am I wrong ? or should I convert my response Object to Json string myself using serializer and then returning that string as response.(I could make string responses correctly) or should I make some other configurations ? like adding annotations for class Foo here is my conf.xml <bean id="jacksonMessageConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> <property name="messageConverters"> <list> <ref bean="jacksonMessageConverter"/> </list> </property>

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• Code sign error with Xcode 3.2

  - by quux

  I had a fully working build environment before upgrading to iPhone OS 3.1 and Xcode 3.2. Now when I try to do a build, i get the following: Code Sign error: Provisioning profile 'FooApp test' specifies the Application Identifier 'no.fooapp.iphoneapp' which doesn't match the current setting 'TGECMYZ3VK.no.fooapp.iphoneapp' The problem is that Xcode somehow manages to think that the "FooApp Test" provisioning profile specifies the Application Identifier "no.fooapp.iphoneapp", but this is not the case. In the Organizer (and in the iPhone developer portal website) the app identifier is correctly seen as 'TGECMYZ3VK.no.fooapp.iphoneapp'. Also, when setting the provisioning profile in the build options at the project level, Xcode correctly identifies the app identifier, but when I go to the target, I'm unable to select any valid provisioning profile. What could be causing this problem? Update: I've tried to create a new provisioning profile, but still no luck. I also tried simply changing the app identified in Info.plist to just "no.fooapp.iphoneapp". The build succeeds, but now I get an error from the Organizer: The executable was signed with invalid entitlements. The entitlements specified in your application's Code Signing Entitlements file do not match those specified in your provisioning profile. (0xE8008016). This seems reasonable, as the provisioning profile still has the "TGECMYZ3VK.no.fooapp.iphoneapp" application identifier. I also double checked that all certiicates are valid in the Keychain. So my question is how I can get Xcode to see the correct application identifier? UPDATE: As noted below, what seems to fix the problem is deleting all provisioning profiles, certificates etc, making new certificates / profiles and installing them again. If anyone has any other solutions, they would be welcome. :)

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• PYTHON: ntlm authentication

  - by Svetlana

  Hello!! I'm trying to implement NTLM authentication on IIS (Windows Server 2003) from Windows 7 with python. LAN Manager Authentication Level: Send NTLM response only. Client machine and server are in the same domain. Domain controller (AD) is on another server (also running Windows Server 2003). I recieve 401.1 - Unauthorized: Access is denied due to invalid credentials. Could you please help me find out what is wrong with this code and/or show me the other possible directions to solve this problem (using NTLM or Kerberos)? [python] import sys, httplib, base64, string import urllib2 import win32api import sspi import pywintypes import socket class WindoewNtlmMessageGenerator: def __init__(self,user=None): import win32api,sspi if not user: user = win32api.GetUserName() self.sspi_client = sspi.ClientAuth("NTLM",user) def create_auth_req(self): import pywintypes output_buffer = None error_msg = None try: error_msg, output_buffer = self.sspi_client.authorize(None) except pywintypes.error: return None auth_req = output_buffer[0].Buffer auth_req = base64.encodestring(auth_req) auth_req = string.replace(auth_req,'\012','') return auth_req def create_challenge_response(self,challenge): import pywintypes output_buffer = None input_buffer = challenge error_msg = None try: error_msg, output_buffer = self.sspi_client.authorize(input_buffer) except pywintypes.error: return None response_msg = output_buffer[0].Buffer response_msg = base64.encodestring(response_msg) response_msg = string.replace(response_msg,'\012','') return response_msg fname='request.xml' request = file(fname).read() ip_host = '10.0.3.112' ntlm_gen = WindoewNtlmMessageGenerator() auth_req_msg = ntlm_gen.create_auth_req() auth_req_msg_dec = base64.decodestring(auth_req_msg) auth_req_msg = string.replace(auth_req_msg,'\012','') webservice = httplib.HTTPConnection(ip_host) webservice.putrequest("POST", "/idc/idcplg") webservice.putheader("Content-length", "%d" % len(request)) webservice.putheader('Authorization', 'NTLM'+' '+auth_req_msg) webservice.endheaders() resp = webservice.getresponse() resp.read() challenge = resp.msg.get('WWW-Authenticate') challenge_dec = base64.decodestring(challenge.split()[1]) msg3 = ntlm_gen.create_challenge_response(challenge_dec) webservice = httplib.HTTP(ip_host) webservice.putrequest("POST", "/idc/idcplg?IdcService=LOGIN&Auth=Intranet") webservice.putheader("Host", SHOD) webservice.putheader("Content-length", "%d" % len(request)) webservice.putheader('Authorization', 'NTLM'+' '+msg3) webservice.putheader("Content-type", "text/xml; charset=\"UTF-8\"") webservice.putheader("SOAPAction", "\"\"") webservice.endheaders() webservice.send(request) statuscode, statusmessage, header = webservice.getreply() res = webservice.getfile().read() res_file = file('result.txt','wb') res_file.write(res) res_file.close() [/python] sspi.py is available here: http://www.koders.com/python/fidF3B0061A07CD13BA35FF263E3E45252CFABFAA3B.aspx?s=timer Thanks!

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• How to change StartupUri of WPF Application?

  - by Akash Kava

  I am trying to modify App.cs and load the WPF XAML files from code behind but its not working as it should. No matter whatever I try to set as StartupUri it doesnt start, the program quits after this. public partial class App : Application { protected override void OnStartup(StartupEventArgs e) { base.OnStartup(e); LoginDialog dlg = new LoginDialog(); if (dlg.ShowDialog() != true) return; switch (dlg.ChoiceApp) { case ChoiceApp.CustomerEntry: StartupUri = new Uri("/MyApp;component/Forms/CustomerEntry.xaml", UriKind.Relative); break; case ChoiceApp.VendorEntry: StartupUri = new Uri("/MyApp;component/Forms/VendorEntry.xaml", UriKind.Relative); break; } } } Now I even did trace and found out that LoginDialog is working correctly and is returning values correctly but setting "StartupUri" does not work. I checked in reverse assembly that DoStartup method of App gets called after OnStartup, so technically my StartupUri must load, but it doesnt, in App.xaml startup uri is not at all defined. Note: Bug Confirmed I noticed that ShowDialog sets Application.MainWindow and when dialog ends, it sets it back to null, and because of this setting StartupUri does not work after calling Modal Dialog in OnStartup or Startup event. There is no error or exception about invalid uri or anything like that. This method works without DialogBox being called in Startup event or OnStartup, i think calling showdialog on this method causes something like its mainwindow being set to expired window and it shuts down after this.

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• $facebook->getSession() returns null in the example code. is that ok?

  - by Toto

  Running the example code for the Facebook API I get a null session object, and I should get a non-null object giving the comment in the code. What am I doing wrong? In other words, in my index.php this fragment from the example code shows "no session" when I go to http://apps.facebook.com/my_app in my browser: <?php require './facebook.php'; // Create our Application instance. $facebook = new Facebook(array( 'appId' => '...', // actual value replaced by '...' for this post 'secret' => '...', // actual value replaced by '...' for the post 'cookie' => true, )); // We may or may not have this data based on a $_GET or $_COOKIE based session. // // If we get a session here, it means we found a correctly signed session using // the Application Secret only Facebook and the Application know. We dont know // if it is still valid until we make an API call using the session. A session // can become invalid if it has already expired (should not be getting the // session back in this case) or if the user logged out of Facebook. $session = $facebook->getSession(); if ($session) { echo "session ok"; } else { echo "no session"; } ?> Note: in my server index.php and facebook.php are in the same folder.

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• Python, unit test - Pass command line arguments to setUp of unittest.TestCase

  - by sberry2A

  I have a script that acts as a wrapper for some unit tests written using the Python unittest module. In addition to cleaning up some files, creating an output stream and generating some code, it loads test cases into a suite using unittest.TestLoader().loadTestsFromTestCase() I am already using optparse to pull out several command-line arguments used for determining the output location, whether to regenerate code and whether to do some clean up. I also want to pass a configuration variable, namely an endpoint URI, for use within the test cases. I realize I can add an OptionParser to the setUp method of the TestCase, but I want to instead pass the option to setUp. Is this possible using loadTestsFromTestCase()? I can iterate over the returned TestSuite's TestCases, but can I manually call setUp on the TestCases? ** EDIT ** I wanted to point out that I am able to pass the arguments to setUp if I iterate over the tests and call setUp manually like: (options, args) = op.parse_args() suite = unittest.TestLoader().loadTestsFromTestCase(MyTests.TestSOAPFunctions) for test in suite: test.setUp(options.soap_uri) However, I am using xmlrunner for this and its run method takes a TestSuite as an argument. I assume it will run the setUp method itself, so I would need the parameters available within the XMLTestRunner. I hope this makes sense.

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• Problem adding namespaces to MSXML (using setProperty('SelectionNamespaces', ...))

  - by conciliator

  A while back, I asked a question regarding the usage of namespaces in MSXML. At first, I circumvented the whole thing with the XPath *[local-name()]-hack (see my previous post), but having a crisis of conscience I decided to do things the right way. (Doh!) Consider the following XML: <?xml version="1.0" encoding="UTF-8"?> <Root xsi:schemaLocation="http://www.foo.bar mySchema.xsd" xmlns="http://www.foo.bar" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <MyElement> </MyElement> </Root> When I try to add these namespaces using IXMLDOMDocument3.setProperty('SelectionNamespaces', NSString);, I get the following error: "SelectionNamespaces property value is invalid. Only well-formed xmlns attributes are allowed.". When removing the namespace xsi:schemaLocation="http://www.foo.bar mySchema.xsd", everything runs smoothly. What am I doing wrong here? Is there an error in the XML? Is MSXML to blame?

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• String formatting in cocoa

  - by lostInTransit

  Hi I am trying to send some text in an email from my cocoa app (by using Mail.app). Initially I tried using HTML to send properly formatted text. But the mailto: URL does not support html tags (even after setting headers) So I decided to use formatted string (left-aligning of string) This is what I have in my mailto: link's body argument NSMutableString *emailBody = [NSMutableString stringWithFormat:@"|%-35s", [@"Name" UTF8String]]; [emailBody appendFormat:@"|%-18s", [@"Number" UTF8String]]; [emailBody appendString:@"|Notes\n"]; [emailBody appendString:@"----------------------------------------------------------------------------------------------------"]; for(int i = 0; i < [items count]; i++){ NSDictionary *props = [items objectAtIndex:i]; NSMutableString *emailData = [NSMutableString stringWithFormat:@"|%-35s", [[props valueForKey:@"name"] UTF8String]]; [emailData appendFormat:@"|$ %-16s", [[props valueForKey:@"number"] UTF8String]]; [emailData appendString:[props valueForKey:@"notes"]]; [emailBody appendString:@"\n"]; [emailBody appendString:emailData]; } This does give me padded text but they all don't necessarily take up the same space (for instance if there is an O in the text, it takes up more space than others and ruins the formatting) Is there another sure-shot way to format text using just NSString? Thanks

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• Exception when creating MailMessage

  - by Julien Poulin

  I'm getting a FormatException telling me the address '[email protected]' is invalid (I'm guessing because of the '-'). Here is the code I'm using: var md = new MailDefinition(); md.BodyFileName = physicalPath; md.Subject = subject; md.From = from; md.CC = cc; md.IsBodyHtml = true; MailMessage mailMessage = md.CreateMailMessage(to, replacements, owner); Is there a bug in the .Net e-mail parser? I am sure this address is valid since it belongs to a friend and I have no problem sending and receiving his e-mails with Outlook. Is there a way to fix this? EDIT: Here is the stacktrace: [FormatException: La chaîne spécifiée n'est pas de la forme requise pour une adresse de messagerie.] System.Net.Mime.MailBnfHelper.ReadMailAddress(String data, Int32& offset, String& displayName) +1141755 System.Net.Mail.MailAddress.ParseValue(String address) +240 System.Net.Mail.MailAddress..ctor(String address, String displayName, Encoding displayNameEncoding) +85 System.Net.Mail.Message..ctor(String from, String to) +122 System.Net.Mail.MailMessage..ctor(String from, String to) +114 System.Web.UI.WebControls.MailDefinition.CreateMailMessage(String recipients, IDictionary replacements, String body, Control owner) +1366 System.Web.UI.WebControls.MailDefinition.CreateMailMessage(String recipients, IDictionary replacements, Control owner) +290 WebNotificationManager.CreateMessage(Page owner, MessageTemplate messageTemplate, ListDictionary replacements, String to, String from, String cc, String subject) in c:\dev\SoccerMania\SoccerMania\App_Code\WebNotificationManager.cs:41 WebNotificationManager.SendMessage(Page owner, MessageTemplate messageTemplate, ListDictionary replacements, String to, String subject) in c:\dev\SoccerMania\SoccerMania\App_Code\WebNotificationManager.cs:22 inscription.bInscription_Click(Object sender, EventArgs e) in c:\dev\SoccerMania\SoccerMania\Inscription.aspx.cs:54 System.Web.UI.WebControls.LinkButton.OnClick(EventArgs e) +111 System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument) +79 System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10 System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13 System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +175 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1565

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• Example of [NSDictionary getObjects:andKeys:]

  - by eagle

  I couldn't find a working example of the method [NSDictionary getObjects:andKeys:] on Google. The only link I could find, doesn't compile. I provided the errors/warnings here in case someone is searching for them. The documentation says that it returns a C array. NSDictionary *myDictionary = ...; id objects[]; // Error: Array size missing in 'objects' id keys[]; // Error: Array size missing in 'keys' [myDictionary getObjects:&objects andKeys:&keys]; for (int i = 0; i < count; i++) { id obj = objects[i]; id key = keys[i]; } . NSDictionary *myDictionary = ...; NSInteger count = [myDictionary count]; id objects[count]; id keys[count]; [myDictionary getObjects:&objects andKeys:&keys]; // Warning: Passing argument 1 of 'getObjects:andKeys:' from incompatible pointer type. for (int i = 0; i < count; i++) { id obj = objects[i]; id key = keys[i]; } Please provide a working example of this method.

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