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• Shaping outbound Traffic to Control Download Speeds with Linux

  - by Kyle Brandt

  I have a situation where a server makes lots of requests from big webservers all at the same time. Currently, I have not control over the amount of requests or the rate of the requests from the application that does this. The responses from these webservers is more than the internet line can handle. (Basically, we are launching a DoS on ourselves). I am going to get push to get this fixed at the application level, but for the time being, is there anyway I can use traffic shaping on the Linux server to control this? I know I can only shape outbound traffic, but maybe there is a way I can slow the TCP responses so the other side will detect congestion and this will help my situation? If there is anything like this with tc, what might the configuration look like? The idea is that the traffic control might help me control which packets get dropped before they reach my router.

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• needs updated glibc package version 3.4.15 or later for RHEL6

  - by Tejas

  I want to upgrade my current running applications to latest version. But due to some package issue i am unable to install them. I get common error in that: /usr/lib64/libstdc++.so.6: version 'GLIBCXX_3.4.15' not found. When i tried to update glibc package i get following output: [root@agastya ~]# yum install glibc Loaded plugins: refresh-packagekit, rhnplugin epel/metalink | 3.8 kB 00:00 epel | 4.3 kB 00:00 epel/primary_db | 5.0 MB 01:33 epel-testing/metalink | 3.8 kB 00:00 epel-testing | 4.3 kB 00:00 epel-testing/primary_db | 295 kB 00:03 rhel-x86_64-server-6 | 1.8 kB 00:00 rhel-x86_64-server-6/primary | 11 MB 02:02 rhel-x86_64-server-6 8816/8816 Setting up Install Process Package glibc-2.12-1.80.el6_3.6.x86_64 already installed and latest version Nothing to do [root@agastya ~]# Should i need to add some more repositories? If yes, how?

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• Wrong java -version being reported

  - by Malachi

  I am running Windows 7 Professional x64 and have the following Java versions installed: x64 C:\Program Files\Java jdk1.6.0_24 jdk1.7.0_04 jdk1.7.0_07 jre6 jre7 x86 C:\Program Files (x86)\Java jre1.6.0_07 jre6 jre7 in my environment variables I have my PATH containing C:\Program Files\Java\jdk1.6.0_24\bin and JAVA_HOME set to C:\Program Files\Java\jdk1.6.0_24\bin However running java -version reports java version "1.7.0_07" Java(TM) SE Runtime Environment (build 1.7.0_07-b10) Java HotSpot(TM) 64-Bit Server VM (build 23.3-b01, mixed mode) How is this the case when there is no reference to this version of Java in my Environment variables. Any help on this issue would be great as I am trying to run Apache ANT using Java 1.6.

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• control + enter in browser takes only .com?

  - by Abhilash M

  I have this strange problem, how exactly does control + enter decides the domain of a website?? If i type stackoverflow,then hit control+enter, it works and takes to homepage, but i type ubuntuforums, then hit control + enter, it does not recognise its ubuntuforums.org, but goes to ubuntuforums.com?? How does this exactly work? If i need to change this behaviour, how should i do it?

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• Nginx Cache-Control

  - by optixx

  Iam serving my static content with ngnix. location /static { alias /opt/static/blog/; access_log off; etags on; etag_hash on; etag_hash_method md5; expires 1d; add_header Pragma "public"; add_header Cache-Control "public, must-revalidate, proxy-revalidate"; } The resulting header looks like this: Cache-Control:public, must-revalidate, proxy-revalidate Cache-Control:max-age=86400 Connection:close Content-Encoding:gzip Content-Type:application/x-javascript; charset=utf-8 Date:Tue, 11 Sep 2012 08:39:05 GMT Etag:e2266fb151337fc1996218fafcf3bcee Expires:Wed, 12 Sep 2012 08:39:05 GMT Last-Modified:Tue, 11 Sep 2012 06:22:41 GMT Pragma:public Server:nginx/1.2.2 Transfer-Encoding:chunked Vary:Accept-Encoding Why is nginx sending 2 Cache-Control entries, could this be a problem for the clients?

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• Keyboard shortcuts in non-English version of Microsoft Office

  - by Squall

  I have a big problem with the Portuguese version of MS Office 2007 and 2010. The standard shortcuts that any common application uses are changed. Some shortcuts that are not working: Ctrl+S (save), Ctrl+F (find) and Ctrl+A (select all). I want to configure it to use the shortcuts of the English version. There is an option that allow to configure each shortcut separately. Furthermore, I have to configure for each app, if I configure in Word, I will have to configure again for Excel. How to use the shortcuts of the English version of MS Office regardless of the Office language? Thanks

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• Apache Upgrade Version

  - by mcondiff

  I have a live server that I need to upgrade Apache from 2.2.10 to 2.2.15 on Windows Server 2003. I have just inherited this server and need the fastest way to upgrade to the latest stable version without much downtime and without messing up my configuration. My first thought is to copy the httpd.conf, uninstall the current Apache, install the latest stable Apache version and then replace the httpd.conf with the previous live version. Anyone see a problem or pitfall with that? How does a Server Pro do something like this. (I'm a programmer and am new to server systems administration).

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• WSUS Showing Incorrect Version & Client Update Failure but they can check-in

  - by user132199

  One of the issues we are having is the clients will not download the updates from our WSUS server. They check-in as they are suppose too and find applicable updates but they are unable to actually download and install them. The GPO is set correctly. We decided to install the patch KB2720211to see if it would help eleviate this issue but it did not. In fact, even stranger, if I check the version that is installed on WSUS it reads 3.2.7600.226 but as far as I know it should read 3.2.7600.251. If I check Add/Remove programs to see what Windows Updates have been installed it even lists for WSUS that KB2720211 has been installed at version 3.2.7600.251. To install this update I followed the following directions Question: Has anyone seen this issue where the patch is installed yet not showing the correct version? What can I try to get my clients to update?

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• Determine which version of linux/unix/darwin I have

  - by John

  I have root ssh/terminal access to a linux server. How do I determine which version of centos I have? Some people suggested I run the command cat /etc/redhat-release but I got an error saying file not found. In fact, i'm not entirely sure i'm even using CentOS. That's what some suggested it might be. Here's a list of commands I tried that gave me no file or directory error: cat /etc/*release* cat /etc/*version* cat /proc/*version* cat /proc/*release* Here's a list of linux commands that do not exist: lsb_release: command not found wget: command not found yum: command not found

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• Open original Microsoft Office document (not "version 1") on Mac OS X Lion restart

  - by FlyingMolga

  My MacBook Pro running Lion has been frequently freezing lately, and I've had to restart with the power button. When Lion starts up again, the Microsoft Office applications that were running start and load different autosaved versions of the documents I had open (i.e. it does not open abc.xlsx but [version 1] of abc.xlsx). Sometimes it also opens the original files. Several times I've inputted data into these "version 1" files, only to try to save it and realize that it isn't the original file and is sometimes missing data that is contained in the original file. Is there any way to make autorecover open the actual document with the unsaved changes, instead of making a new temporary version?

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• Accessing ActiveX control through web server

  - by user847455

  I have developed the ActiveX control & register with Common CLSID number . using the CLSID number accessing the active X control on the internet explorer (as web page).using following object tag used in .html file OBJECT id="GlobasysActiveX" width="1000" height="480" runat="server" classid="CLSID:E86A9038-368D-4e8f-B389-FDEF38935B2F" i want to access this web page through web server .I have place this web page into the vitual directory & access using localhost\my.html it's working. but when i have accessed from LAN computer it will not access the activeX control from my computer . how to embed or download the activeX control form my computer into the LAN computer through web server thanks in advance

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• How To Check My Current Version of FFMPEG

  - by aamiri

  I have FFMPEG installed on 2 different servers. On one of the servers, i run into an issue every time i try to convert m4v files where ffmpeg just processes the file indefinitely. When I take the same source file and try to run it on the other server it seems to work just fine. Both servers are running the same version of GNU/Linux. Some one suggested i check to see if the same version of ffmpeg is installed on the servers, so my question to you all is, "how do i check my ffmpeg version?" Thanks!

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• Is there a word processor similar to MS Word which saves files as readable txt files?

  - by zenbomb

  I'm writing a paper together with my supervisor and would like to have a more sophisticated version control than *_291112_NEW_NEW_revised1.doc files. My supervisor is a non-computer person will never ever use LaTeX or git and loves MS Word. I'm therefore looking for an alternative to Word (I need commenting on text passages!) which stores the files as clean text (Markup for formating is fine), so I'm able to put them under version control on my side. I'm aware that git can also handle binary files, but I'd prefer the cleaner way of looking at the contents directly. If there's a way to automatically extract the text from word files, I'm fine with that too for now.

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• Remap control key in gnome-terminal?

  - by Colin

  I just installed Ubuntu to get more familiar with it since I'll be using it in a new job shortly. I use Macs at home and in my current job, so I'd like to make it as Mac-like as possible. I've remapped the command and control characters using the following .xmodmap: remove control = Control_L Control_R remove mod4 = Super_L Super_R add control = Super_L Super_R add mod4 = Control_L Control_R Which works great for everything except the terminal, since Ctrl-C is now mapped to CMD-C, and still conflicts with what I'd like to use to copy. Is there any way I can remap the Control key just for the terminal? I'm willing to consider gnome-terminal alternatives if required.

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• Installing old version of mysql

  - by Peter

  I'm trying to troubleshoot a database import problem and want to duplicate the environment onto another server. This will require installing an older version of mysql, but the packages that are listed are only showing a recent version. I'm currently running debian wheezy 7.1 and what was installed was the packaged 5.5.31. What is the official way to install an older copy? I guess I could hunt around Google and hope to find some files of the same version to install from source, but this doesn't seem like a reliable method.

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• ASP.NET and WIF: Showing custom profile username as User.Identity.Name

  - by DigiMortal

  I am building ASP.NET MVC application that uses external services to authenticate users. For ASP.NET users are fully authenticated when they are redirected back from external service. In system they are logically authenticated when they have created user profiles. In this posting I will show you how to force ASP.NET MVC controller actions to demand existence of custom user profiles. Using external authentication sources with AppFabric Suppose you want to be user-friendly and you don’t force users to keep in mind another username/password when they visit your site. You can accept logins from different popular sites like Windows Live, Facebook, Yahoo, Google and many more. If user has account in some of these services then he or she can use his or her account to log in to your site. If you have community site then you usually have support for user profiles too. Some of these providers give you some information about users and other don’t. So only thing in common you get from all those providers is some unique ID that identifies user in service uniquely. Image above shows you how new user joins your site. Existing users who already have profile are directed to users homepage after they are authenticated. You can read more about how to solve semi-authorized users problem from my blog posting ASP.NET MVC: Using ProfileRequiredAttribute to restrict access to pages. The other problem is related to usernames that we don’t get from all identity providers. Why is IIdentity.Name sometimes empty? The problem is described more specifically in my blog posting Identifying AppFabric Access Control Service users uniquely. Shortly the problem is that not all providers have claim called http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name. The following diagram illustrates what happens when user got token from AppFabric ACS and was redirected to your site. Now, when user was authenticated using Windows Live ID then we don’t have name claim in token and that’s why User.Identity.Name is empty. Okay, we can force nameidentifier to be used as name (we can do it in web.config file) but we have user profiles and we want username from profile to be shown when username is asked. Modifying name claim Now let’s force IClaimsIdentity to use username from our user profiles. You can read more about my profiles topic from my blog posting ASP.NET MVC: Using ProfileRequiredAttribute to restrict access to pages and you can find some useful extension methods for claims identity from my blog posting Identifying AppFabric Access Control Service users uniquely. Here is what we do to set User.Identity.Name: we will check if user has profile, if user has profile we will check if User.Identity.Name matches the name given by profile, if names does not match then probably identity provider returned some name for user, we will remove name claim and recreate it with correct username, we will add new name claim to claims collection. All this stuff happens in Application_AuthorizeRequest event of our web application. The code is here. protected void Application_AuthorizeRequest() {     if (string.IsNullOrEmpty(User.Identity.Name))     {         var identity = User.Identity;         var profile = identity.GetProfile();         if (profile != null)         {             if (profile.UserName != identity.Name)             {                 identity.RemoveName();                   var claim = new Claim("http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name", profile.UserName);                 var claimsIdentity = (IClaimsIdentity)identity;                 claimsIdentity.Claims.Add(claim);             }         }     } } RemoveName extension method is simple – it looks for name claims of IClaimsIdentity claims collection and removes them. public static void RemoveName(this IIdentity identity) {     if (identity == null)         return;       var claimsIndentity = identity as ClaimsIdentity;     if (claimsIndentity == null)         return;       for (var i = claimsIndentity.Claims.Count - 1; i >= 0; i--)     {         var claim = claimsIndentity.Claims[i];         if (claim.ClaimType == "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name")             claimsIndentity.Claims.RemoveAt(i);     } } And we are done. Now User.Identity.Name returns the username from user profile and you can use it to show username of current user everywhere in your site. Conclusion Mixing AppFabric Access Control Service and Windows Identity Foundation with custom authorization logic is not impossible but a little bit tricky. This posting finishes my little series about AppFabric ACS and WIF for this time and hopefully you found some useful tricks, tips, hacks and code pieces you can use in your own applications.

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• Add your recent Tweets to your web site.

  - by Latest Microsoft Blogs

  Twitter continues to gain in popularity, in part because it offers a rich and easy to use query API. Just for fun I made an ASP.NET Web Forms User Control to Display some recent Tweets on a web page. The tweets are displayed in a ListView as follows. Read More......(read more)

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• IRM and Consumerization

  - by martin.abrahams

  As the season of rampant consumerism draws to its official close on 12th Night, it seems a fitting time to discuss consumerization - whereby technologies from the consumer market, such as the Android and iPad, are adopted by business organizations. I expect many of you will have received a shiny new mobile gadget for Christmas - and will be expecting to use it for work as well as leisure in 2011. In my case, I'm just getting to grips with my first Android phone. This trend developed so much during 2010 that a number of my customers have officially changed their stance on consumer devices - accepting consumerization as something to embrace rather than resist. Clearly, consumerization has significant implications for information control, as corporate data is distributed to consumer devices whether the organization is aware of it or not. I daresay that some DLP solutions can limit distribution to some extent, but this creates a conflict between accepting consumerization and frustrating it. So what does Oracle IRM have to offer the consumerized enterprise? First and foremost, consumerization does not automatically represent great additional risk - if an enterprise seals its sensitive information. Sealed files are encrypted, and that fundamental protection is not affected by copying files to consumer devices. A device might be lost or stolen, and the user might not think to report the loss of a personally owned device, but the data and the enterprise that owns it are protected. Indeed, the consumerization trend is another strong reason for enterprises to deploy IRM - to protect against this expansion of channels by which data might be accidentally exposed. It also enables encryption requirements to be met even though the enterprise does not own the device and cannot enforce device encryption. Moving on to the usage of sealed content on such devices, some of our customers are using virtual desktop solutions such that, in truth, the sealed content is being opened and used on a PC in the normal way, and the user is simply using their device for display purposes. This has several advantages: The sensitive documents are not actually on the devices, so device loss and theft are even less of a worry The enterprise has another layer of control over how and where content is used, as access to the virtual solution involves another layer of authentication and authorization - defence in depth It is a generic solution that means the enterprise does not need to actively support the ever expanding variety of consumer devices - the enterprise just manages some virtual access to traditional systems using something like Citrix or Remote Desktop services. It is a tried and tested way of accessing sealed documents. People have being using Oracle IRM in conjunction with Citrix and Remote Desktop for several years. For some scenarios, we also have the "IRM wrapper" option that provides a simple app for sealing and unsealing content on a range of operating systems. We are busy working on other ways to support the explosion of consumer devices, but this blog is not a proper forum for talking about them at this time. If you are an Oracle IRM customer, we will be pleased to discuss our plans and your requirements with you directly on request. You can be sure that the blog will cover the new capabilities as soon as possible.

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• FileVersionInfo.GetVersionInfo getting old version of an exe swapped at runtime

  - by Richard

  I have a program executing in c# that is sometimes updated while it is running by swapping the exe to a new one. I want the program to routinely check if it has been updated and if so, restart. I use the following function to do this. public static bool DoINeedToRestart(string exe_name) { Version cur_version = new Version(MainProgram.StartVersion); Version file_version = new Version(GetProductVersion(exe_name)); MessageBox.Show("Comparing cur_version " + cur_version.ToString() + " with " + file_version.ToString()); if (file_version > cur_version) { return true; } return false; } public static string GetProductVersion(string path_name) { FileVersionInfo myFI = FileVersionInfo.GetVersionInfo(path_name); return myFI.FileVersion; } MainProgram.StartVersion is set when the program is started to be the current version using the GetProductVersion(exe_name) exe_name is set to be the name of the executable that is being updated. The problem I have is once the MainProgram.exe file has been updated (I verify this manually by looking at the file properties and checking the file version), the GetProductVersion still returns the old file version and I have no idea why! Any help is greatly appreciated.

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• c# getting file version of a swapped exe at runtime

  - by Richard

  I have a program executing in c# that is sometimes updated while it is running by swapping the exe to a new one. I want the program to routinely check if it has been updated and if so, restart. I use the following function to do this. public static bool DoINeedToRestart(string exe_name) { Version cur_version = new Version(MainProgram.StartVersion); Version file_version = new Version(GetProductVersion(exe_name)); MessageBox.Show("Comparing cur_version " + cur_version.ToString() + " with " + file_version.ToString()); if (file_version > cur_version) { return true; } return false; } public static string GetProductVersion(string path_name) { FileVersionInfo myFI = FileVersionInfo.GetVersionInfo(path_name); return myFI.FileVersion; } StartVersion is set when the program is started to be the current version using the GetProductVersion(exe_name). exe_name is set to be the name of the executable that is being updated. The problem I have is once the MainProgram.exe file has been updated (I verify this manually by looking at the file properties and checking the file version), the GetProductVersion still returns the old file version and I have no idea why! Any help is greatly appreciated.

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• OnApplyTemplate not called in Custom Control

  - by Lasse O

  I am SICK AND TIRED of WPF and all its "if thats dosen't work, try this" fucking fixes ALL THE TIME, well heres one the collection: I have a Custom Control which uses some PART controls: [TemplatePart(Name = "PART_TitleTextBox", Type = typeof(TextBox))] [TemplatePart(Name = "PART_TitleIndexText", Type = typeof(Label))] [TemplatePart(Name = "PART_TimeCodeInText", Type = typeof(TextBlock))] [TemplatePart(Name = "PART_TimeCodeOutText", Type = typeof(TextBlock))] [TemplatePart(Name = "PART_ApprovedImage", Type = typeof(Image))] [TemplatePart(Name = "PART_CommentsImage", Type = typeof(Image))] [TemplatePart(Name = "PART_BookmarkedImage", Type = typeof(Image))] public class TitleBoxNew : Control { This control is overriding OnApplyTemplate: public override void OnApplyTemplate() { base.OnApplyTemplate(); InitializeEvents(); } Which works well, most of the time.. I have added the control inside a custom tab control in a window and somehow OnApplyTemplate is never called for that control! WHY IS WPF SO FUCKING RANDOM!?

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• Access to DataTemplate Control of WPF Toolkit DataGridCell at Runtime, How?

  - by LukePet

  I have a DataGrid defined with WPF Toolkit. The CellEditingTemplate of this DataGrid is associated at runtime with a custom function that build a FrameworkElementFactory element. Now I have to access to control that is inserted inside DataTemplate of CellEditingTempleta, but I do not know how to do. On web I found a useful ListView Helper... public static class ListViewHelper { public static FrameworkElement GetElementFromCellTemplate(ListView listView, Int32 column, Int32 row, String name) { if (row >= listView.Items.Count || row < 0) { throw new ArgumentOutOfRangeException("row"); } GridView gridView = listView.View as GridView; if (gridView == null) { return null; } if (column >= gridView.Columns.Count || column < 0) { throw new ArgumentOutOfRangeException("column"); } ListViewItem item = listView.ItemContainerGenerator.ContainerFromItem(listView.Items[row]) as ListViewItem; if (item != null) { GridViewRowPresenter rowPresenter = GetFrameworkElementByName<GridViewRowPresenter>(item); if (rowPresenter != null) { ContentPresenter templatedParent = VisualTreeHelper.GetChild(rowPresenter, column) as ContentPresenter; DataTemplate dataTemplate = gridView.Columns[column].CellTemplate; if (dataTemplate != null && templatedParent != null) { return dataTemplate.FindName(name, templatedParent) as FrameworkElement; } } } return null; } private static T GetFrameworkElementByName<T>(FrameworkElement referenceElement) where T : FrameworkElement { FrameworkElement child = null; for (Int32 i = 0; i < VisualTreeHelper.GetChildrenCount(referenceElement); i++) { child = VisualTreeHelper.GetChild(referenceElement, i) as FrameworkElement; System.Diagnostics.Debug.WriteLine(child); if (child != null && child.GetType() == typeof(T)) { break; } else if (child != null) { child = GetFrameworkElementByName<T>(child); if (child != null && child.GetType() == typeof(T)) { break; } } } return child as T; } } this code work with the ListView object but not with the DataGrid object. How can use something like this in DataGrid?

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• Webbrowser control: Get element value and store it into a variable.

  - by Khou

  Winform: Web browser Control The web browser has the following displayed content, within a html table. [Element] [Value] Name John Smith Email [email protected] For the example above, the html code, might look something like this <table> <tbody> <tr> <td><label class="label">Name</label></td> <td class="normaltext">John Smith</td> </tr> <tr> <td><label class="label">Email</label></td> <td><span class="normaltext">[email protected]</span></td> </tr> </tr> </tbody> </table> . I want to get the element value, the value to the right of the label. What is the best way to do this? .

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• How to use webbrowser control DocumentCompleted event in C# ?

  - by Margus

  Before starting writing this question, i was trying to solve following // 1. navigate to page // 2. wait until page is downloaded // 3. read and write some data from/to iframe // 4. submit (post) form The problem was, that if a iframe exists on a web page, DocumentCompleted event would get fired more then once (after each document has been completed). It was highly likely that program would have tried to read data from DOM that was not completed and naturally - fail. But suddenly while writing this question 'What if' monster inspired me, and i fix'ed the problem, that i was trying to solve. As i failed Google'ing this, i thought it would be nice to post it here. private int iframe_counter = 1; // needs to be 1, to pass DCF test public bool isLazyMan = default(bool); /// <summary> /// LOCK to stop inspecting DOM before DCF /// </summary> public void waitPolice() { while (isLazyMan) Application.DoEvents(); } private void webBrowser1_Navigating(object sender, WebBrowserNavigatingEventArgs e) { if(!e.TargetFrameName.Equals("")) iframe_counter --; isLazyMan = true; } private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e) { if (!((WebBrowser)sender).Document.Url.Equals(e.Url)) iframe_counter++; if (((WebBrowser)sender).Document.Window.Frames.Count <= iframe_counter) {//DCF test DocumentCompletedFully((WebBrowser)sender,e); isLazyMan = false; } } private void DocumentCompletedFully(WebBrowser sender, WebBrowserDocumentCompletedEventArgs e){ //code here } For now at least, my 5m hack seems to be working fine. Maybe i am really failing at querying google or MSDN, but i can not find: "How to use webbrowser control DocumentCompleted event in C# ?"

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• How to detect whether a control is standard or active-x control?

  - by Gopalakrishnan Subramani

  In MFC Application, how can we differentiate whether a control is a standard control like CComboBox or it is an custom active-x control?

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