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• La publicité mobile en click-to-call peut générer un retour sur investissement de 800%, explique Google

  La publicité mobile en click-to-call peut générer un retour sur investissement de 800%, explique Google Il y a quelques semaines, Google révélait ses excellents résultats financiers liés à ses activités mobiles, et notamment publicitaires. D'autres statistiques viennent dorer ce blason, surtout dans le domaine des publicités appelée "click-to-call". En effet, quand on surf depuis un smartphone, on peut rencontrer des publicités ou des sites invitant à cliquer sur un lien ou une bannière pour être rappelé. Le but étant de proposer un contact téléphonique rapide, si ce n'est immédiat, pour répondre à toutes les questions ou demandes de l'internaute. Une mise en relation simple, qui ne demande en général qu'un...

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• Le risque de cyber guerre est surestimé ainsi que les effets des exploits actuels, rapportent des chercheurs anglais

  Le risque de cyber guerre est surestimé ainsi que les effets des exploits actuels, rapportent des chercheurs anglais Depuis quelques mois, on crie en tous sens à la "cyberguerre". Pourtant, d'après une étude récente, la menace serait surestimée. Rassurantes, les conclusions de cette recherche affirment que si une pandémie ou une crise économique peut créer des soucis planétaires, les cyber attaques en sont loin mais tout juste capables de créer des désordres ponctuels et localisés. De plus, le terme de "guerre numérique" serait souvent mal utilisé, et ne correspondrait pas à certaines activités pour lesquelles il est utilisé, comme l'espionnage ou l'hacktivisme, ou bien encore les accidents. les d...

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• 10Gbe sfp+ Cross Over Cable required? Is there such a thing?

  - by dc-patos

  To preface, this is my first experience with 10GBe networking and I have encountered an issue which research does not seem to document a solution for... I have two servers (older DL580G5 and DL380G5), each with a HP NC522SFP 10Gbe dual sfp+ port adapter. I have purchased copper "passive" direct connect adapter cables (which look like twinax), which seem to work well when I connect them to the sfp+ ports on my Dell 5524 switch. However, if I directly connect the two servers with the same cable, the link doesn't come up. I am running WS2012 standard on each server. My intention is to use one of these servers as a home brew SAN and I would like to enable mutiple 10Gbe paths for iSCSI traffic. My question(s): Can I connect the two adapters to each other, such as I would with other less speedy generations of ethernet? If I can, do I require a crossover cable, or some type of other sfp+ cable solution to do this? My 10Gbe sfp+ switch ports are premium, but server to server connections are doable in small numbers for me and I would really like the multiple paths this would give me. Is there a simple solution?

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• Window 7 Computer name changing on its own?

  - by DC

  Very odd problem... I have a Dell Latitude D830 with XP Pro that has been running on my local domain for many years. I recently Installed Windows 7 Enterprise on the D830 using a brand new HDD so that I could still use XP if I needed by just swapping out the HDD's. I added the W7 installed system to my domain using a completely different machine name than that used for the XP system and everything seemed to be functioning as it should. On boot up over the last 2 weeks or so I occasionally (3 times now) get to the login screen and try to login to the domain only to get an error saying that the Computer name is not a trusted machine in the domain I'm trying to log in to. Come to find out that the machine name on the W7 system has been changed somehow to that of my old XP system. If on the W7 system I then change the name back to the correct name, disjoin the domain, reboot, add the machine back into the domain … all is well for an unknown period of time until this happens again. This last time, I know for a fact that everything was fine the day before when I shut down the system. I came in today, powered up the system and the machine name had been changed to that of my old XP system again. Has anybody else seen this behavior or hav any ideas on what could be causing it? Thanks!

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• How to fetch a cpu status thought net-snmp

  - by Steve.DC.Tang

  I want to fetch a device's cpu and memory status thought net-snmp. I get my device's info with this command: snmpwalk -v 2c -c public 210.38.xxx.xxx system And I got this info: SNMPv2-MIB::sysDescr.0 = STRING: Ruijie High-density IPv6 10G Core Routing Switch(S8606) By Ruijie Network SNMPv2-MIB::sysObjectID.0 = OID: SNMPv2-SMI::enterprises.4881.1.1.10.1.43 DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (1978814424) 229 days, 0:42:24.24 SNMPv2-MIB::sysContact.0 = STRING: SNMPv2-MIB::sysName.0 = STRING: S8606 SNMPv2-MIB::sysLocation.0 = STRING: SNMPv2-MIB::sysServices.0 = INTEGER: 7 Now I want to fetch the cpu status, and I search my question on Google, somebody offer a oid for query the cpu status: snmpwalk -v 2c -c public 210.38.xxx.xxx usageOfCPU But it doesn't worked : No log handling enabled - using stderr logging usageOfCPU: Unknown Object Identifier (Sub-id not found: (top) - usageOfCPU) Somebody told me some switch has its private MIB, and you can use it to see its CPU status, is that right? I hope someone can solve me question......

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• should i link to a blog site or install my own blog engine?

  - by dc

  we're setting up a company blog. Our technology stack is .NET. Should we just use blogger/wordpress for the blog and redirect to it from our site? or should i install a blog engine directly on our site (e.g. blogEngine.NET)? some considerations i'd like feedback on are: 1.SEO - if you host your blog on wordpress/blogger instead of installing it on your site - will you get better page rankings? (if the content was the exact same) 2.scalability - i've read that dotNetBlogEngine doesnt scale well on web farms etc. our website is setup to be stateless. 3.security - presumably a hosted blog site has the advantage of having regular security updates. how easy is it to keep an installed blog engine patched? 4.examples of installed blog engines - dotNetBlogEngine seems to be the best but has a couple of limitations. can anyone suggest another one (n/a if you're advice is to host the blog on blogger/wordpress) 5.any other comments/issues/concerns we should be aware of? thanks for your feedback!

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• Le Logiciel Libre – Omniprésent dans le secteur public

  - by gravax

  NOTE : Cet article a servi de base à du contenu publié en Juin 2011 dans le magazine Acteurs Publics. Créé il y a plusieurs décennies déjà, pour répondre à un besoin de partage de savoir, et de compétences, le Logiciel Libre existe sous plusieurs appellations, à l'origine anglo-saxonnes, dont « Free Software » et « Open Source » sont les plus utilisées. En Anglais, le mot « Free » pouvant signifier à la fois libre et gratuit, cela a créé une certaine confusion qui n'existe pas en Français avec le mot « libre ». Du coup, on voit souvent l’acronyme FOSS ou FLOSS, pour « Free, Libre, Open Source Software » afin d'éliminer l’ambiguïté. De nos jours, dans le secteur public, le logiciel libre est, depuis, devenu omniprésent. Il répond à plusieurs besoins critiques dont le contrôle des coûts, le choix (de partenaire, de logiciel, de fonctionnalités), la liberté de pouvoir modifier les applications pour les adapter à ses propres besoins, la sécurité provenant du fait que de nombreux développeurs et utilisateurs ont pu contrôler la qualité du code. Un autre aspect très présent dans les logiciels libres et l'adhérence quasi-systématique aux standards de l'industrie, qui garantit une intégration simple et facile au système d'information existant. Il y a cependant des éléments à prendre en compte lors des choix de logiciels libres stratégiques. Si l'aspect coûts est clairement un élément de choix qui peut conduire aux logiciels libres, il est principalement dû au fait qu'un logiciel libre existe souvent en version gratuite, librement téléchargeable. Mais ceci n'est que le le sommet de l'iceberg. Lors de la mise en production de logiciels il va falloir s'entourer de services dont l'intégration, où les possibilités de choix d'un partenaire seront d'autant plus grandes que le logiciel choisi est populaire et connu, ce qui conduira à des coups tirés vers le bas grâce à une concurrence saine. Mais il faudra aussi prévoir le support technique. La encore, la popularité du logiciel choisi augmentera la palette de prestataires de support possible. Le choix devra se faire suivant des critères très solides, et en particulier la capacité à s'engager sur des niveaux de service, la disponibilité 24 heures sur 24, 7 jours sur 7 (le pays ne s’arrête pas de fonctionner le week-end ou la nuit), et, éventuellement, la couverture géographique correspondant aux métiers que l'on exerce (un pays comme la France couvrant avec ses DOM et ses TOM une grande partie des fuseaux horaires et zones géographiques de la planète). La plus part des services publics, que ce soit éducation, santé, ou gouvernement, utilisent déjà des logiciels libres. On les retrouve coté infrastructure, avec des produits comme la base de données MySQL, fortement appréciée dans le monde de l'éducation pour construire des plate-formes d'e-éducation en conjonction avec d'autres produits libres tels Moodle, ou GlassFish, le serveur d'applications très prisé des développeurs pour son adhérence au standard Java EE version 6 et sa simplicité de mise-en-œuvre. Linux est extrêmement présent comme système d'exploitation libre dans le datacenter, mais aussi sur le poste de travail. On retrouve des outils de virtualisation tels Oracle VM, issu de Xen, dans le datacenter, et VirtualBox sur le poste du développeur. Avec une telle palette de solutions et d'outils dans le monde du Logiciel libre, Oracle se apporte au secteur public des réponses ciblées, efficaces, aux besoins du marché, y compris en matière de support technique et qualité de service associée.

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• Using AuthzSVNAccessFile for controlling SVN Access produces HTTP 400 Bad Request

  - by meeper

  I have a new repository on an existing subversion server that requires us to perform path based authorization within the repository. I found that the AuthzSVNAccessFile directive in apache is directly responsible for allowing this functionality. After fixing several other problems such as AuthzSVNAccessFile preventing SVNListParentPath from operating properly, I am left with one single problem. I can checkout, I can update, I can commit, BUT I cannot execute an SVN COPY for performing branch/tagging operations. The moment I comment out the AuthzSVNAccessFile line in the Apache config everything works as expected except the obvious path authorizations. Versions: The server OS is Debian 6.0.7 (Squeeze) Apache 2.2.16-6+squeeze11 Server Subversion 1.6.12dfsg-7 Clients are running windows Clients tried are: TortoiseSVN 1.8.2 Build 24708 64bit SVN CLI Client 1.8.3 (r1516576) Authentication is performed via AD to a Windows 2003 domain and appears to be operating normally. I have stripped out all other configurations and repository setups to produce this single configuration that reproduces the problem. Apache Configuration: <VirtualHost *:443> ServerName svn-test.company.com ServerAlias /svn-test ServerAdmin [email protected] SSLEngine On SSLCertificateFile /etc/apache2/apache.pem ErrorLog /var/log/apache2/svn-test_error.log LogLevel warn CustomLog /var/log/apache2/svn-test_access.log combined ServerSignature On # Repository Access to all Repositories <Location "/"> DAV svn SVNParentPath /var/svn SVNListParentPath on AuthBasicProvider ldap AuthType Basic AuthzLDAPAuthoritative Off AuthName "Subversion Test Repository System" AuthLDAPURL "ldap://adserver.company.com:389/DC=corp,DC=company,DC=com?sAMAccountName?sub?(objectClass=*)" NONE AuthLDAPBindDN "CN=service_account,OU=ServiceIDs,OU=corp,OU=Delegated,DC=na,DC=corp,DC=company,DC=com" AuthLDAPBindPassword service_account_password Require valid-user SSLRequireSSL </Location> # <LocationMatch /.+> is a really dirty trick to make listing of repositories work # http://d.hatena.ne.jp/shimonoakio/20080130/1201686016 <LocationMatch /.+> AuthzSVNAccessFile /etc/apache2/svn_path_auth </LocationMatch> </VirtualHost> SVN Access File: [/] * = rw The repository used (AuthTestBasic) consists of the following directory structure and contains no externals (this is a literal listing, not an example): / /branches/ /tags/ /trunk/ /trunk/somefile.txt Tortoise produces the following error during a tag operation in it's tag result window: Adding directory failed: COPY on /authtestbasic/!svn/bc/2/trunk (400 Bad Request) The svn.exe CLI client produces the following error: C:\Users\e20epkt>svn copy https://servername/authtestbasic/trunk https://servername/authtestbasic/tags/tag1 -m "svn cli client" svn: E175002: Adding directory failed: COPY on /authtestbasic/!svn/bc/2/trunk (400 Bad Request) The Apache error log has nothing in it, however the apache access log has the following in it (IP addresses and usernames changed obviously): 10.1.2.100 - - [17/Oct/2013:11:53:40 -0700] "OPTIONS /authtestbasic/trunk HTTP/1.1" 401 2595 "-" "SVN/1.8.3 (x64-microsoft-windows) serf/1.3.1 TortoiseSVN-1.8.2.24708" 10.1.2.100 - myuseraccount [17/Oct/2013:11:53:40 -0700] "OPTIONS /authtestbasic/trunk HTTP/1.1" 200 996 "-" "SVN/1.8.3 (x64-microsoft-windows) serf/1.3.1 TortoiseSVN-1.8.2.24708" 10.1.2.100 - myuseraccount [17/Oct/2013:11:53:40 -0700] "OPTIONS /authtestbasic/trunk HTTP/1.1" 200 884 "-" "SVN/1.8.3 (x64-microsoft-windows) serf/1.3.1 TortoiseSVN-1.8.2.24708" 10.1.2.100 - myuseraccount [17/Oct/2013:11:53:40 -0700] "PROPFIND /authtestbasic/trunk HTTP/1.1" 207 692 "-" "SVN/1.8.3 (x64-microsoft-windows) serf/1.3.1 TortoiseSVN-1.8.2.24708" 10.1.2.100 - myuseraccount [17/Oct/2013:11:53:40 -0700] "PROPFIND /authtestbasic/!svn/vcc/default HTTP/1.1" 207 596 "-" "SVN/1.8.3 (x64-microsoft-windows) serf/1.3.1 TortoiseSVN-1.8.2.24708" 10.1.2.100 - myuseraccount [17/Oct/2013:11:53:40 -0700] "REPORT /authtestbasic/!svn/bc/0/trunk HTTP/1.1" 404 580 "-" "SVN/1.8.3 (x64-microsoft-windows) serf/1.3.1 TortoiseSVN-1.8.2.24708" 10.1.2.100 - myuseraccount [17/Oct/2013:11:53:40 -0700] "PROPFIND /authtestbasic/!svn/vcc/default HTTP/1.1" 207 596 "-" "SVN/1.8.3 (x64-microsoft-windows) serf/1.3.1 TortoiseSVN-1.8.2.24708" 10.1.2.100 - myuseraccount [17/Oct/2013:11:53:40 -0700] "REPORT /authtestbasic/!svn/bc/2/trunk HTTP/1.1" 200 674 "-" "SVN/1.8.3 (x64-microsoft-windows) serf/1.3.1 TortoiseSVN-1.8.2.24708" 10.1.2.100 - myuseraccount [17/Oct/2013:11:53:40 -0700] "PROPFIND /authtestbasic/!svn/bc/2/trunk HTTP/1.1" 207 548 "-" "SVN/1.8.3 (x64-microsoft-windows) serf/1.3.1 TortoiseSVN-1.8.2.24708" 10.1.2.100 - myuseraccount [17/Oct/2013:11:53:40 -0700] "PROPFIND /authtestbasic/tags/tag1 HTTP/1.1" 404 580 "-" "SVN/1.8.3 (x64-microsoft-windows) serf/1.3.1 TortoiseSVN-1.8.2.24708" 10.1.2.100 - myuseraccount [17/Oct/2013:11:53:40 -0700] "MKACTIVITY /authtestbasic/!svn/act/f1e9dc07-fb5e-5a41-ac22-907705ef6e5e HTTP/1.1" 201 708 "-" "SVN/1.8.3 (x64-microsoft-windows) serf/1.3.1 TortoiseSVN-1.8.2.24708" 10.1.2.100 - myuseraccount [17/Oct/2013:11:53:40 -0700] "PROPFIND /authtestbasic/tags HTTP/1.1" 207 580 "-" "SVN/1.8.3 (x64-microsoft-windows) serf/1.3.1 TortoiseSVN-1.8.2.24708" 10.1.2.100 - myuseraccount [17/Oct/2013:11:53:40 -0700] "CHECKOUT /authtestbasic/!svn/vcc/default HTTP/1.1" 201 708 "-" "SVN/1.8.3 (x64-microsoft-windows) serf/1.3.1 TortoiseSVN-1.8.2.24708" 10.1.2.100 - myuseraccount [17/Oct/2013:11:53:40 -0700] "PROPPATCH /authtestbasic/!svn/wbl/f1e9dc07-fb5e-5a41-ac22-907705ef6e5e/2 HTTP/1.1" 207 596 "-" "SVN/1.8.3 (x64-microsoft-windows) serf/1.3.1 TortoiseSVN-1.8.2.24708" 10.1.2.100 - myuseraccount [17/Oct/2013:11:53:40 -0700] "CHECKOUT /authtestbasic/!svn/ver/1/tags HTTP/1.1" 201 724 "-" "SVN/1.8.3 (x64-microsoft-windows) serf/1.3.1 TortoiseSVN-1.8.2.24708" 10.1.2.100 - myuseraccount [17/Oct/2013:11:53:40 -0700] "COPY /authtestbasic/!svn/bc/2/trunk HTTP/1.1" 400 596 "-" "SVN/1.8.3 (x64-microsoft-windows) serf/1.3.1 TortoiseSVN-1.8.2.24708" 10.1.2.100 - myuseraccount [17/Oct/2013:11:53:40 -0700] "DELETE /authtestbasic/!svn/act/f1e9dc07-fb5e-5a41-ac22-907705ef6e5e HTTP/1.1" 204 1956 "-" "SVN/1.8.3 (x64-microsoft-windows) serf/1.3.1 TortoiseSVN-1.8.2.24708" You'll see that the second to last line contains the COPY command with the HTTP 400 response, however, there doesn't appear to be any indication as to why. Please note that, while yes this is a test repository on a test server, I am experiencing this same issue in this test setup where I have eliminated all other possible causes (mixed repository configurations, externals, etc). I have also confirmed that all files for the repository (/var/svn/authtestbasic) are owned by the Apache user www-data.

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• How to check if object is sql to linq type

  - by remdao

  Hi, anyone know if there's any easy way to check if an object is an sql to ling type? I have a method like this but would like it to only accept valid types. public static void Update(params object[] items) { using (TheDataContext dc = new TheDataContext()) { System.Data.Linq.ITable table; if(items.Length > 0) table = dc.GetTable(items[0].GetType()); for (int i = 0; i < items.Length; i++) { table.Attach(items[i]); dc.Refresh(System.Data.Linq.RefreshMode.KeepCurrentValues, items[i]); } dc.SubmitChanges(); } }

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• PlayFramework with Scala and Morphia

  - by AKRamkumar

  I keep getting this exception: Oops: CannotCompileException An unexpected error occured caused by exception CannotCompileException: [source error] ds() not found in models.dc What is wrong with my code? Here is models.ds package models import com.google.code.morphia.annotations._ @Embedded class ds{ @Indexed var xs : Double=0 @Indexed var xc : Double=0 @Indexed var ys : Double=0 @Indexed var yc : Double=0 @Indexed var zs : Double=0 @Indexed var zc : Double=0 } Here is models.dc package models import com.google.code.morphia.annotations.{Embedded, Entity, Indexed} @Entity class dc{ @Indexed var name : String = null @Embedded var summary : ds = new ds() }

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• create text inside a rectangle using inkscape

  - by mr calendar

  I've put some text inside a rectangle using inkscape so the tree is like <svg:rect><svg:text><svg:tspan>text.... The problem is, I can't see the text. I've tried fiddling with the opacity of the rect to no avail. There should be a way of doing this from the UI? Edit example as requested <?xml version="1.0" encoding="UTF-8" standalone="no"?> <!-- Created with Inkscape (http://www.inkscape.org/) --> <svg xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:cc="http://creativecommons.org/ns#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd" xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape" width="184.25197" height="262.20471" id="svg2" sodipodi:version="0.32" inkscape:version="0.46" version="1.0" sodipodi:docname="ex1.svg" inkscape:output_extension="org.inkscape.output.svg.inkscape"> <defs id="defs4"> <inkscape:perspective sodipodi:type="inkscape:persp3d" inkscape:vp_x="0 : 526.18109 : 1" inkscape:vp_y="0 : 1000 : 0" inkscape:vp_z="744.09448 : 526.18109 : 1" inkscape:persp3d-origin="372.04724 : 350.78739 : 1" id="perspective10" /> </defs> <sodipodi:namedview id="base" pagecolor="#ffffff" bordercolor="#666666" borderopacity="1.0" gridtolerance="10000" guidetolerance="10" objecttolerance="10" inkscape:pageopacity="0.0" inkscape:pageshadow="2" inkscape:zoom="0.64" inkscape:cx="195.9221" inkscape:cy="335.3072" inkscape:document-units="px" inkscape:current-layer="layer1" showgrid="false" inkscape:window-width="640" inkscape:window-height="675" inkscape:window-x="44" inkscape:window-y="44" /> <metadata id="metadata7"> <rdf:RDF> <cc:Work rdf:about=""> <dc:format>image/svg+xml</dc:format> <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage" /> </cc:Work> </rdf:RDF> </metadata> <g inkscape:label="Layer 1" inkscape:groupmode="layer" id="layer1"> <rect style="opacity:0.25480766;fill:#ff0000;fill-opacity:1;stroke:#000000;stroke-width:12.94795799;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" id="rect2383" width="150.87796" height="84.226181" x="18.221733" y="39.557121"> <text xml:space="preserve" style="font-size:56.0331955px;font-style:normal;font-weight:normal;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;font-family:Bitstream Vera Sans" x="44.815186" y="114.0088" id="text2385" transform="scale(1.0054479,0.9945816)"><tspan sodipodi:role="line" id="tspan2387" x="44.815186" y="114.0088">text</tspan></text> </rect> </g> </svg> I'd expect to be able to see this in inkscape. The workaround is to put text on a layer above the box (the intent is that the box obscures the layers below it) and not try and get clever with nested tags. Shame it doesn't work though.

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• Accessing children with a given name via jdom

  - by Christian

  I want to access the children with skos:Concept. getChildren("skos:Concept") and getChildren("Concept") both give me an empty list what should I use instead?. My example Data: <owl:AnnotationProperty rdf:about="&dc;identifier"/> <owl:ObjectProperty rdf:about="&skos;narrower"/> <skos:Concept rdf:about="#concept:0_acetylpantolactone:4253501"> <skos:prefLabel xml:lang="" >0-acetylpantolactone</skos:prefLabel> <skos:hiddenLabel xml:lang="" >2(3H)-Furanone, 3-(acetyloxy)dihydro-4,4-dimethyl-, (R)-</skos:hiddenLabel> <dc:identifier rdf:resource="urn:CHID:028227363"/> <dc:identifier rdf:resource="urn:MESH:C014305"/> </skos:Concept> <skos:Concept rdf:about="#concept:1012S:4202655"> <skos:prefLabel xml:lang="">1012S</skos:prefLabel> <skos:hiddenLabel xml:lang="" >C19-H16-Cl2-N6-O</skos:hiddenLabel> <skos:hiddenLabel xml:lang="">Compound 1012S</skos:hiddenLabel> <dc:identifier rdf:resource="urn:CAS:95211_91_9"/> <dc:identifier rdf:resource="urn:CHID:095211919"/> </skos:Concept>

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• VBScript LDAP: Is there a way to query for physicalDeliveryOfficeName using the email address in Act

  - by phill

  I'm attempting to utilize VBScript to connect pull the physicalDeliveryOfficeName attribute in Active Directory by providing the email address. I know how to do it with a common name like the following: Set MyUser = GetObject ("LDAP://cn=" & uname & ",ou=" & strname & ",DC=bobdom,DC=net") However only the email address is available. How to do this? I've even tried Set MyUser = GetObject ("LDAP://mail=" & uname & ",ou=" & strname & ",DC=bobdom,DC=net") and that doesn't work.

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• Long Running Stored Proc - Report Progress Using BackgroundWorker & Timer

  - by daveywc

  While a long running stored proc (RMR_Seek) is executing (called via a Linq-To-SQL data context) I am trying to call another stored proc (RMR_GetLatestModelMessage) to check a table for the latest status message. The long running stored proc updates the table in question with status messages as it executes. I want to display the status message on a message panel to advise the user of the status of the execution of Proc_A. For various reasons it is not possible to determine how long RMR_Seek will take to execute so a progress bar with percentage increments is not feasible. I thought I'd found the way to do it by calling the long running stored proc from in a BackgroundWorker process DoWork event handler. This worked fine and allowed me to update my message panel with some dummy status messages that were NOT obtained via Proc_B while Proc_A was running. However now that I have tried to implement this fully by calling Proc_B to obtain the status messages I am running into problems that seem to be related to the mix of the backgroundworker and my System.Windows.Forms.Timer. An extract of the code I am using is below. I have tried many different ways around this but each one seems to present its own set of problems. The code below is problematic in the bw_DoWork event. The RMR_Seek stored proc gets called but does not execute properly - it also seems to be inconsistent as to whether _IsCompleted gets set to true. I'm sure there is a better way to achieve what I am trying to do. private bool _IsCompleted; private void RunRevenueSeek() { if (_SelectedModel == null) { MessageBox.Show("Please select a model from the list and try again.", "Model Generation", MessageBoxButtons.OK, MessageBoxIcon.Information); } else { var bw = new BackgroundWorker(); bw.DoWork += new DoWorkEventHandler(bw_DoWork); ProgressPanelControl.Visible = true; _IsCompleted = false; MessageTimer.Start(); // Has an interval of 3000 bw.RunWorkerAsync(); ProgressLabelControl.Text = "Refreshing Data"; this.Update(); ...more code goes here } } private void bw_DoWork(object sender, DoWorkEventArgs e) { using (var dc = new RevMdlrDataClassesDataContext()) { dc.CommandTimeout = 300; dc.RMR_Seek(_SelectedModel.ModelSet_ID); _IsCompleted = true; } } private void MessageTimer_Tick(object sender, EventArgs e) { string message = ""; if (_IsCompleted) { MessageTimer.Stop(); } else { using (var dc = new RevMdlrDataClassesDataContext()) { dc.CommandTimeout = 300; dc.RMR_GetLatestModelMessage(_SelectedModel.ModelSet_ID, ref message); ProgressLabelControl.Text = message; this.Update(); } } }

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• get a button font api

  - by user545142

  hi first sorry for my English i try to get a word under mouse now my problem how to get the font of button i try to use IntPtr dc= GetDC(button1.Handle); IntPtr last_font = SelectObject(dc, Font.ToHfont()); Font fon = Font.FromHdc(dc); but it gave me the font of the form and some time gave me error Only TrueType fonts are supported. This is not a TrueType font any body help me

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• OpenGL suppresses exceptions in MFC dialog-based application

  - by Mikhail

  Hello. I have an MFC-driven dialog-based application created with MSVS2005. Here is my problem step by step. I have button on my dialog and corresponding click-handler with code like this: int* i = 0; *i = 3; I'm running debug version of program and when I click on the button, Visual Studio catches focus and alerts "Access violation writing location" exception, program cannot recover from the error and all I can do is to stop debugging. And this is the right behavior. Now I add some OpenGL initialization code in the OnInitDialog() method: HDC DC = GetDC(GetSafeHwnd()); static PIXELFORMATDESCRIPTOR pfd = { sizeof(PIXELFORMATDESCRIPTOR), // size of this pfd 1, // version number PFD_DRAW_TO_WINDOW | // support window PFD_SUPPORT_OPENGL | // support OpenGL PFD_DOUBLEBUFFER, // double buffered PFD_TYPE_RGBA, // RGBA type 24, // 24-bit color depth 0, 0, 0, 0, 0, 0, // color bits ignored 0, // no alpha buffer 0, // shift bit ignored 0, // no accumulation buffer 0, 0, 0, 0, // accum bits ignored 32, // 32-bit z-buffer 0, // no stencil buffer 0, // no auxiliary buffer PFD_MAIN_PLANE, // main layer 0, // reserved 0, 0, 0 // layer masks ignored }; int pixelformat = ChoosePixelFormat(DC, &pfd); SetPixelFormat(DC, pixelformat, &pfd); HGLRC hrc = wglCreateContext(DC); ASSERT(hrc != NULL); wglMakeCurrent(DC, hrc); Of course this is not exactly what I do, it is the simplified version of my code. Well now the strange things begin to happen: all initialization is fine, there are no errors in OnInitDialog(), but when I click the button... no exception is thrown. Nothing happens. At all. If I set a break-point at the *i = 3; and press F11 on it, the handler-function halts immediately and focus is returned to the application, which continue to work well. I can click button again and the same thing will happen. It seems like someone had handled occurred exception of access violation and silently returned execution into main application message-receiving cycle. If I comment the line wglMakeCurrent(DC, hrc);, all works fine as before, exception is thrown and Visual Studio catches it and shows window with error message and program must be terminated afterwards. I experience this problem under Windows 7 64-bit, NVIDIA GeForce 8800 with latest drivers (of 11.01.2010) available at website installed. My colleague has Windows Vista 32-bit and has no such problem - exception is thrown and application crashes in both cases. Well, hope good guys will help me :) PS The problem originally where posted under this topic.

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• wglCreateContext in C# failing but not in managed C++

  - by SeeR

  I'm trying to use opengl in C#. I have following code which fails with error 2000 ERROR_INVALID_PIXEL_FORMAT First definitions: [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true, ExactSpelling = true)] public static extern IntPtr GetDC(IntPtr hWnd); [StructLayout(LayoutKind.Sequential)] public struct PIXELFORMATDESCRIPTOR { public void Init() { nSize = (ushort) Marshal.SizeOf(typeof (PIXELFORMATDESCRIPTOR)); nVersion = 1; dwFlags = PFD_FLAGS.PFD_DRAW_TO_WINDOW | PFD_FLAGS.PFD_SUPPORT_OPENGL | PFD_FLAGS.PFD_DOUBLEBUFFER | PFD_FLAGS.PFD_SUPPORT_COMPOSITION; iPixelType = PFD_PIXEL_TYPE.PFD_TYPE_RGBA; cColorBits = 24; cRedBits = cRedShift = cGreenBits = cGreenShift = cBlueBits = cBlueShift = 0; cAlphaBits = cAlphaShift = 0; cAccumBits = cAccumRedBits = cAccumGreenBits = cAccumBlueBits = cAccumAlphaBits = 0; cDepthBits = 32; cStencilBits = cAuxBuffers = 0; iLayerType = PFD_LAYER_TYPES.PFD_MAIN_PLANE; bReserved = 0; dwLayerMask = dwVisibleMask = dwDamageMask = 0; } ushort nSize; ushort nVersion; PFD_FLAGS dwFlags; PFD_PIXEL_TYPE iPixelType; byte cColorBits; byte cRedBits; byte cRedShift; byte cGreenBits; byte cGreenShift; byte cBlueBits; byte cBlueShift; byte cAlphaBits; byte cAlphaShift; byte cAccumBits; byte cAccumRedBits; byte cAccumGreenBits; byte cAccumBlueBits; byte cAccumAlphaBits; byte cDepthBits; byte cStencilBits; byte cAuxBuffers; PFD_LAYER_TYPES iLayerType; byte bReserved; uint dwLayerMask; uint dwVisibleMask; uint dwDamageMask; } [Flags] public enum PFD_FLAGS : uint { PFD_DOUBLEBUFFER = 0x00000001, PFD_STEREO = 0x00000002, PFD_DRAW_TO_WINDOW = 0x00000004, PFD_DRAW_TO_BITMAP = 0x00000008, PFD_SUPPORT_GDI = 0x00000010, PFD_SUPPORT_OPENGL = 0x00000020, PFD_GENERIC_FORMAT = 0x00000040, PFD_NEED_PALETTE = 0x00000080, PFD_NEED_SYSTEM_PALETTE = 0x00000100, PFD_SWAP_EXCHANGE = 0x00000200, PFD_SWAP_COPY = 0x00000400, PFD_SWAP_LAYER_BUFFERS = 0x00000800, PFD_GENERIC_ACCELERATED = 0x00001000, PFD_SUPPORT_DIRECTDRAW = 0x00002000, PFD_DIRECT3D_ACCELERATED = 0x00004000, PFD_SUPPORT_COMPOSITION = 0x00008000, PFD_DEPTH_DONTCARE = 0x20000000, PFD_DOUBLEBUFFER_DONTCARE = 0x40000000, PFD_STEREO_DONTCARE = 0x80000000 } public enum PFD_LAYER_TYPES : byte { PFD_MAIN_PLANE = 0, PFD_OVERLAY_PLANE = 1, PFD_UNDERLAY_PLANE = 255 } public enum PFD_PIXEL_TYPE : byte { PFD_TYPE_RGBA = 0, PFD_TYPE_COLORINDEX = 1 } [DllImport("gdi32.dll", CharSet = CharSet.Auto, SetLastError = true, ExactSpelling = true)] public static extern int ChoosePixelFormat(IntPtr hdc, [In] ref PIXELFORMATDESCRIPTOR ppfd); [DllImport("gdi32.dll", CharSet = CharSet.Auto, SetLastError = true, ExactSpelling = true)] public static extern bool SetPixelFormat(IntPtr hdc, int iPixelFormat, ref PIXELFORMATDESCRIPTOR ppfd); [DllImport("opengl32.dll", CharSet = CharSet.Auto, SetLastError = true, ExactSpelling = true)] public static extern IntPtr wglCreateContext(IntPtr hDC); And now the code that fails: IntPtr dc = Win.GetDC(hwnd); var pixelformatdescriptor = new GL.PIXELFORMATDESCRIPTOR(); pixelformatdescriptor.Init(); var pixelFormat = GL.ChoosePixelFormat(dc, ref pixelformatdescriptor); if(!GL.SetPixelFormat(dc, pixelFormat, ref pixelformatdescriptor)) throw new Win32Exception(Marshal.GetLastWin32Error()); IntPtr hglrc; if((hglrc = GL.wglCreateContext(dc)) == IntPtr.Zero) throw new Win32Exception(Marshal.GetLastWin32Error()); //<----- here I have exception the same code in managed C++ is working HDC dc = GetDC(hWnd); PIXELFORMATDESCRIPTOR pf; pf.nSize = sizeof(PIXELFORMATDESCRIPTOR); pf.nVersion = 1; pf.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER | PFD_SUPPORT_COMPOSITION; pf.cColorBits = 24; pf.cRedBits = pf.cRedShift = pf.cGreenBits = pf.cGreenShift = pf.cBlueBits = pf.cBlueShift = 0; pf.cAlphaBits = pf.cAlphaShift = 0; pf.cAccumBits = pf.cAccumRedBits = pf.cAccumGreenBits = pf.cAccumBlueBits = pf.cAccumAlphaBits = 0; pf.cDepthBits = 32; pf.cStencilBits = pf.cAuxBuffers = 0; pf.iLayerType = PFD_MAIN_PLANE; pf.bReserved = 0; pf.dwLayerMask = pf.dwVisibleMask = pf.dwDamageMask = 0; int ipf = ChoosePixelFormat(dc, &pf); SetPixelFormat(dc, ipf, &pf); HGLRC hglrc = wglCreateContext(dc); I've tried it on VIsta 64-bit with ATI graphic card and on Windows XP 32-bit with Nvidia with the same result in both cases. Also I want to mention that I don't want to use any already written framework for it. Can anyone show me where is the bug in C# code that is causing the exception?

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• LINQ to SQL:DataContext.SubmitChanges not updating immediately

  - by aximili

  I have a funny problem. Doing DataContext.SubmitChanges() updates Count() in one way but not in the other, see my comment in the code below.(DC is the DataContext) var compliances = c.DataCompliances.Where(x => x.ComplianceCriteria.FKElement == e.Id); if (compliances.Count() == 0) // Insert if not exists { DC.DataCompliances.InsertOnSubmit(new DataCompliance { FKCompany = c.Id, FKComplianceCriteria = criteria.Id }); DC.SubmitChanges(); compliances = c.DataCompliances.Where(x => x.ComplianceCriteria.FKElement == e.Id); // At this point DC.DataCompliances.Count() has increased, // but compliances.Count() is still 0 // When I refresh the page however, it will be 1 } Why does that happen? I need to update compliances after inserting one. Does anyone have a solution?

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• C# failing LDAP queries

  - by jpkomick

  I'm trying to access an LDAP directory via the SearchRequest object in C#. I can make the same calls via an LDAP library running in and iPhone app, as well as directly via a terminal session. However, the C# queries all seem to fail. var search = new SearchRequest("ou=calendar,dc=ualberta,dc=ca", "term=*,course=094398,class=*", System.DirectoryServices.Protocols.SearchScope.Subtree, attributeLst); This returns a list of terms for the course calendar. However, making the following calls won't return results for specific courses var search = new SearchRequest("ou=calendar,dc=ualberta,dc=ca", "term=1330,course=094398", System.DirectoryServices.Protocols.SearchScope.Subtree, attributeLst); The attributeLst object has proper attribute names included, but the query always returns with zero results. Any suggestions anyone has would be greatly appreciated. Thanks.

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• Why does my buffered GraphicsContext application have a flickering problem?

  - by Bibendum

  import wx class MainFrame(wx.Frame): def __init__(self,parent,title): wx.Frame.__init__(self, parent, title=title, size=(640,480)) self.mainPanel=DoubleBufferTest(self,-1) self.Show(True) class DoubleBufferTest(wx.Panel): def __init__(self,parent=None,id=-1): wx.Panel.__init__(self,parent,id,style=wx.FULL_REPAINT_ON_RESIZE) self.SetBackgroundColour("#FFFFFF") self.timer = wx.Timer(self) self.timer.Start(100) self.Bind(wx.EVT_TIMER, self.update, self.timer) self.Bind(wx.EVT_PAINT,self.onPaint) def onPaint(self,event): event.Skip() dc = wx.MemoryDC() dc.SelectObject(wx.EmptyBitmap(640, 480)) gc = wx.GraphicsContext.Create(dc) gc.PushState() gc.SetBrush(wx.Brush("#CFCFCF")) bgRect=gc.CreatePath() bgRect.AddRectangle(0,0,640,480) gc.FillPath(bgRect) gc.PopState() dc2=wx.PaintDC(self) dc2.Blit(0,0,640,480,dc,0,0) def update(self,event): self.Refresh() app = wx.App(False) f=MainFrame(None,"Test") app.MainLoop() I've come up with this code to draw double buffered GraphicsContext content onto a panel, but there's a constant flickering across the window. I've tried different kinds of paths, like lines and curves but it's still there and I don't know what's causing it.

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• Generic Any/Attach/Add function for Entity Framework

  - by Matt Thrower

  Looking through my EF classes, they're littered with code that looks like this: if (_myContext.[EntityType].Any(d => d.RowId == dc.RowId)) { _myContext.[EntityType].Attach(dc); _myContext.Entry(dc).State = EntityState.Modified; } else { _myContext.[EntityType].Add(dc); } It's the same thing over and over, and is clearly itching to be handled by a generic function. However, I'm not sure how you'd go about handling the need for it to deal with a variety of unexpected entity types. A good example to get me started would be most appreciated.

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• How to Parse an XML (using XELement) having multiple Namespace ?

  - by Subhen

  Hi I , I get the followinng Xresponse after parsing the XML document: <DIDL-Lite xmlns="urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:upnp="urn:schemas-upnp-org:metadata-1-0/upnp/" xmlns:dlna="urn:schemas-dlna-org:metadata-1-0/"> <item id="1182" parentID="40" restricted="1"> <title>Hot Issue</title> </item> As per the earlier thread, When there is a default namespace in the document, you must parse it as if it were a named namespace. For example. XNamespace ns = "urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/"; var xDIDL = xResponse.Element(ns + "DIDL-Lite"); But in my case I have four different name space. I am not getting any results after using the following query , I am getting the response , Not Yeilding any results: XNamespace dc = "http://purl.org/dc/elements/1.1/"; var vAudioData = from xAudioinfo in xResponse.Descendants(ns + "DIDL-lite").Elements("item") select new RMSMedia { strAudioTitle = ((string)xAudioinfo.Element(dc + "title")).Trim(), }; I have no clue whats going on as am new to it. Please help

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• EF 4 Self Tracking Entities does not work as expected.

  - by ashraf

  I am using EF4 Self Tracking Entities (VS2010 Beta 2 CTP 2 plus new T4 generator). But when I try to update entity information it does not update to database as expected. I setup 2 service calls. one for GetResource(int id) which return a resource object. the second call is SaveResource(Resource res); here is the code. public Resource GetResource(int id) { using (var dc = new MyEntities()) { return dc.Resources.Where(d => d.ResourceId == id).SingleOrDefault(); } } public void SaveResource(Resource res) { using (var dc = new MyEntities()) { dc.Resources.ApplyChanges(res); dc.SaveChanges(); // Nothing save to database. } } //Windows Console Client Calls var res = service.GetResource(1); res.Description = "New Change"; // Not updating... service.SaveResource(res); // does not change anything. It seems to me that ChangeTracker.State is always show as "Unchanged". anything wrong in this code?

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• Adding objects to LDAP via CGI

  - by musashiXXX

  I have a web form that collects information and submits it to a cgi that attempts to insert the data into LDAP. The problem is that I'm trying to use a variable with ::ldap::add and it's just not working. Here's the code: if {[string length env(QUERY_STRING)] != 0} { set handle [::ldap::connect localhost] set dn "cn=admin,dc=mycompany,dc=com" set pw "myPassword" ::ldap::bind $handle $dn $pw set dn "cn=[ncgi::value givenName] [ncgi::value sn],ou=people,dc=mycompany,dc=com" set formValues [ puts "cn {{[ncgi::value givenName] [ncgi::value sn]}}" puts "displayName [ncgi::value givenName] [ncgi::value sn]" foreach {key value} [ncgi::nvlist] { if {[string length $value] != 0} { puts "$key $value" } } puts "objectClass top" puts "objectClass person" puts "objectClass organizationalPerson" puts "objectClass inetOrgPerson" ] ::ldap::add $handle $dn { $formValues } ldap::unbind $handle } However, if I replace $formValues with the actual entries that I want to insert into LDAP, they get added just fine. I'm new to TCL so I wouldn't be surprised if there were some glaring errors in this snippet. Thanks in advance!

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• Need a refresher course on property access...

  - by Code Sherpa

  Hi. I need help with accessing class properties within a given class. For example, take the below class: public partial class Account { private Profile _profile; private Email _email; private HostInfo _hostInfo; public Profile Profile { get { return _profile; } set { _profile = value; } } public Email Email { get { return _email; } set { _email = value; } } public HostInfo HostInfo { get { return _hostInfo; } set { _hostInfo = value; } } In the class "Account" exists a bunch of class properties such as Email or Profile. Now, when I want to access those properties at run-time, I do something like this (for Email): _accountRepository = ObjectFactory.GetInstance<IAccountRepository>(); string username = Cryptography.Decrypt(_webContext.UserNameToVerify, "verify"); Account account = _accountRepository.GetAccountByUserName(username); if(account != null) { account.Email.IsConfirmed = true; But, I get "Object reference not set..." for account.Email... Why is that? How do I access Account such that account.Email, account.Profile, and so on returns the correct data for a given AccountId or UserName. Here is a method that returns Account: public Account GetAccountByUserName(string userName) { Account account = null; using (MyDataContext dc = _conn.GetContext()) { try { account = (from a in dc.Accounts where a.UserName == userName select a).FirstOrDefault(); } catch { //oops } } return account; } The above works but when I try: account = (from a in dc.Accounts join em in dc.Emails on a.AccountId equals em.AccountId join p in dc.Profiles on em.AccountId equals p.AccountId where a.UserName == userName select a).FirstOrDefault(); I am still getting object reference exceptions for my Email and Profile properties. Is this simply a SQL problem or is there something else I need to be doing to be able to fully access all the properties within my Account class? Thanks!

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