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• Creating an equation in a word 2003 document using a marco (or through the API)

  - by Sambatyon

  I think the title is fully descriptive. Anyway, I need to generate a word document from my delphi application. It needs to choose from one of four different equations (with some specific parameters for each document). So far I have manage to create the whole document programmatically except the equation. Is it possible to create equations programmatically? if so, where is de API documentation from MS? if not, which solution can be used?

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• addSubview like modal

  - by brettr

  How can I get a UIView to transition via addSubview like the presentModalViewController does? The available animations don't seem to do this. I would use the modal but I have a navigation bar at the top and don't want to disable it. Also, the modal overlays on the navigation bar. If there is a way to have it so the modal doesn't disable the nav bar, I can go with that approach. But since it is a modal, I don't think that is possible.

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• Database design in blogging systems

  - by Peter

  As a learning exercise I'm trying to put myself a blogging system. The goal is to code something that will let me create multiple blogs, like blogger.com or wordpress.com, but much simplified. I would like to ask you, what do you think is best database design for this type of script. Is it better to have one big table, containing posts from all blogs of all users (like friendfeed) or would it be better to create separate table for each blog's posts? Big thanks in advance for your help, Peter.

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• prevent the designer from calling a getter (VS 2008, WinForms)

  - by LLEA

  hi, I have a simple UserControl containing a ComboBox which is empty at first. The setter for that CB adds items to it and the getter returns the selected item. When adding this UC to a Form, the designer automatically calls the getter for the CB which is empty. The method to fill up the CB with items is called later. I can think of one or two ways to bypass this problem by "messing around" in the code. But before I start that I'd like to ask you if there is a way to stop the designer from calling the getter method. Maybe with a attribute similar to Browsable or Bindable? thx

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• Spring Security 3.0 and Active Directory LDAP: DOMAIN\user login

  - by Bernd Haug

  I would like to have users authenticate against an ActiveDirectory LDAP server using the DOMAIN\user.name syntax. I think that should be possible with SpringSec 3.0 since the docs mention an "alternative syntax" which I guess refers to the DOM\user syntax instead of a bind DN, but the docs don't elaborate further. Is there some way to configure Spring Sec 3 LDAP to use "the MS way" or do I have to write my own Authenticator implementation (against e.g. the java.naming.directory package, which I've tested to be able to use the MS syntax as its SECURITY_PRINCIPAL)?

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• PHP: Why Cookies only sent to http://www.xxx.com and NOT http://xxx.com

  - by Axel

  Hi, I have a php login which sets 2 cookies once some one login. the problem is that if you login from : http://www.mydomain.com and you go to http://mydomain.com you will find your self not logged in, I think that's because the browser only send the cookies to the first syntax. It's only one domain, the difference is the www. before the domain name, so how to set cookies to the whole domain whatever there is www. or not ? <?php setcookie('username',$username,time()+3600); ?> Thanks

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• iPhone Core Data: request for member 'tableView' in something not a structure or union

  - by Nic Hubbard

  I am trying to use CoreData to populate a UITableView. I have been using the developer "Locations" project, and I think I have everything correct. But, now I am getting the following error when I build: request for member 'tableView' in something not a structure or union Why would it be confused about tableView? I am using it many times in the methods. The errors seem to be coming from: [self.tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade]; [self.tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:0] atScrollPosition:UITableViewScrollPositionTop animated:YES]; Ideas?

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• Project links in RAD Studio Welcome page do not work

  - by vcldeveloper

  Hi, As you know, welcome page in RAD Studio shows a list of recent projects, and you can open each project by clicking on its name. My problem is that if the project is located somewhere My Documents folder, then the link in welcome page does not work! It works fine for projects which are located outside My Documents, but no links to anything inside My Documents work. It's been a while I am having this problem both in RAD Studio 2009 and RAD Studio 2010 on Windows Vista and Windows 7 (64-bit). I tried running the IDE as administrator to see if it works, but it didn't. I think it must be something related to IE security settings. Any idea? Thanks

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• What is the right tool to detect VMT or heap corruption in Delphi ?

  - by Roland Bengtsson

  I'm a member in a team that use Delphi 2007 for a larger application and we suspect heap corruption because sometimes there are strange bugs that have no other explanation. I believe that the Rangechecking option for the compiler is only for arrays. I want a tool that give an exception or log when there is a write on a memory address that is not allocated by the application. Regards EDIT: The error is of type: Error: Access violation at address 00404E78 in module 'BoatLogisticsAMCAttracsServer.exe'. Read of address FFFFFFDD EDIT2: Thanks for all suggestions. Unfortunately I think that the solution is deeper than that. We use a patched version of Bold for Delphi as we own the source. Probably there are some errors introduced in the Bold framwork. Yes we have a log with callstacks that are handled by JCL and also trace messages. So a callstack with the exception can lock like this: 20091210 16:02:29 (2356) [EXCEPTION] Raised EBold: Failed to derive ServerSession.mayDropSession: Boolean OCL expression: not active and not idle and timeout and (ApplicationKernel.allinstances->first.CurrentSession <> self) Error: Access violation at address 00404E78 in module 'BoatLogisticsAMCAttracsServer.exe'. Read of address FFFFFFDD. At Location BoldSystem.TBoldMember.CalculateDerivedMemberWithExpression (BoldSystem.pas:4016) Inner Exception Raised EBold: Failed to derive ServerSession.mayDropSession: Boolean OCL expression: not active and not idle and timeout and (ApplicationKernel.allinstances->first.CurrentSession <> self) Error: Access violation at address 00404E78 in module 'BoatLogisticsAMCAttracsServer.exe'. Read of address FFFFFFDD. At Location BoldSystem.TBoldMember.CalculateDerivedMemberWithExpression (BoldSystem.pas:4016) Inner Exception Call Stack: [00] System.TObject.InheritsFrom (sys\system.pas:9237) Call Stack: [00] BoldSystem.TBoldMember.CalculateDerivedMemberWithExpression (BoldSystem.pas:4016) [01] BoldSystem.TBoldMember.DeriveMember (BoldSystem.pas:3846) [02] BoldSystem.TBoldMemberDeriver.DoDeriveAndSubscribe (BoldSystem.pas:7491) [03] BoldDeriver.TBoldAbstractDeriver.DeriveAndSubscribe (BoldDeriver.pas:180) [04] BoldDeriver.TBoldAbstractDeriver.SetDeriverState (BoldDeriver.pas:262) [05] BoldDeriver.TBoldAbstractDeriver.Derive (BoldDeriver.pas:117) [06] BoldDeriver.TBoldAbstractDeriver.EnsureCurrent (BoldDeriver.pas:196) [07] BoldSystem.TBoldMember.EnsureContentsCurrent (BoldSystem.pas:4245) [08] BoldSystem.TBoldAttribute.EnsureNotNull (BoldSystem.pas:4813) [09] BoldAttributes.TBABoolean.GetAsBoolean (BoldAttributes.pas:3069) [10] BusinessClasses.TLogonSession._GetMayDropSession (code\BusinessClasses.pas:31854) [11] DMAttracsTimers.TAttracsTimerDataModule.RemoveDanglingLogonSessions (code\DMAttracsTimers.pas:237) [12] DMAttracsTimers.TAttracsTimerDataModule.UpdateServerTimeOnTimerTrig (code\DMAttracsTimers.pas:482) [13] DMAttracsTimers.TAttracsTimerDataModule.TimerKernelWork (code\DMAttracsTimers.pas:551) [14] DMAttracsTimers.TAttracsTimerDataModule.AttracsTimerTimer (code\DMAttracsTimers.pas:600) [15] ExtCtrls.TTimer.Timer (ExtCtrls.pas:2281) [16] Classes.StdWndProc (common\Classes.pas:11583) The inner exception part is the callstack at the moment an exception is reraised. EDIT3: The theory right now is that the Virtual Memory Table (VMT) is somehow broken. When this happen there is no indication of it. Only when a method is called an exception is raised (ALWAYS on address FFFFFFDD, -35 decimal) but then it is too late. You don't know the real cause for the error. Any hint of how to catch a bug like this is really appreciated!!! We have tried with SafeMM, but the problem is that the memory consumption is too high even when the 3 GB flag is used. So now I try to give a bounty to the SO community :) EDIT4: One hint is that according the log there is often (or even always) another exception before this. It can be for example optimistic locking in the database. We have tried to raise exceptions by force but in test environment it just works fine. EDIT5: Story continues... I did a search on the logs for the last 30 days now. The result: "Read of address FFFFFFDB" 0 "Read of address FFFFFFDC" 24 "Read of address FFFFFFDD" 270 "Read of address FFFFFFDE" 22 "Read of address FFFFFFDF" 7 "Read of address FFFFFFE0" 20 "Read of address FFFFFFE1" 0 So the current theory is that an enum (there is a lots in Bold) overwrite a pointer. I got 5 hits with different address above. It could mean that the enum holds 5 values where the second one is most used. If there is an exception a rollback should occur for the database and Boldobjects should be destroyed. Maybe there is a chance that not everything is destroyed and a enum still can write to an address location. If this is true maybe it is possible to search the code by a regexpr for an enum with 5 values ? EDIT6: To summarize, no there is no solution to the problem yet. I realize that I may mislead you a bit with the callstack. Yes there are a timer in that but there are other callstacks without a timer. Sorry for that. But there are 2 common factors. An exception with Read of address FFFFFFxx. Top of callstack is System.TObject.InheritsFrom (sys\system.pas:9237) This convince me that VilleK best describe the problem. I'm also convinced that the problem is somewhere in the Bold framework. But the BIG question is, how can problems like this be solved ? It is not enough to have an Assert like VilleK suggest as the damage has already happened and the callstack is gone at that moment. So to describe my view of what may cause the error: Somewhere a pointer is assigned a bad value 1, but it can be also 0, 2, 3 etc. An object is assigned to that pointer. There is method call in the objects baseclass. This cause method TObject.InheritsForm to be called and an exception appear on address FFFFFFDD. Those 3 events can be together in the code but they may also be used much later. I think this is true for the last method call. EDIT7: We work closely with the the author of Bold Jan Norden and he recently found a bug in the OCL-evaluator in Bold framework. When this was fixed these kinds of exceptions decreased a lot but they still occasionally come. But it is a big relief that this is almost solved.

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• PHP - Is possible to find if user is browsing from beind a Router and get Router Info

  - by Fábio Antunes

  Hello guys. I think it isn't possible just using PHP, but just to be sure. Is it possible for PHP to know if the user is accessing the web from behind a Router? And if yes, how can i get some information about that router, like: Router Name, Brand, Serial Number, ... Users connected in the same network. Can PHP also find the Local IP Address for the visitor in that Network? A few simple questions. To which i haven't found a solid answer, and i tough that some PHP genius could tell me. And teach me. Thanks for your help.

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• MySQLi PHP: Check if SQL INSERT query was fully successful using MySQLi

  - by Jonathan

  Hi, I have this big function that gets a lot of different data and insert it into multiple tables.. Not all the data is always available so not all the SQL INSERT queries are successful. I need to check which SQL INSERT query was fully successful and which wasn't to the do something with this data (like inserting into a log table or similar). Just to give you an example of how I think it can be done: $sql = 'INSERT INTO data_table (ID, column1, column2) VALUES(?, ?, ?)'; if ($stmt->prepare($sql)) { $stmt->bind_param('iss', $varID, $var1, $var2); if ($stmt->execute()) { $success == TRUE; //or something like that } } I'm not completely sure this is the best way and if its always really show if the data was inserted into the table... Any suggestions??

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• 301 versus inline rewrites

  - by Kristoffer S Hansen

  I'm in the process of adding 'pretty' URLs to an existing CMS, the menu is auto generated and the new 'pretty' URLs are to be handled independently as a seperate module. The auto-generated menu allways has URLs that look like this index.php?menu_id=n which ofcourse we would like to see as eg. /news or /products I'm currently at the point where I have to decide if I'm going to rewrite all output of the current system or simply put in a hook where I redirect to the 'pretty' URL. To put it differently, should i connect to the database, fetch all 'pretty' URLs, run through the existing output from WYSIWYG's, news modules, forums etc. and do some str_replace or other string manipulation (which I think would be a rather tedious and boring process), or should I simply hook in and throw a 301 redirecting index.php?menu_id=3 to /news will Google (or other search engines) penalize me for having 301's in the menus?

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• UIWebView - get total height of contents using Javascript

  - by Emil

  Hey. I'm trying to use a UIWebView for displaying content higher than the screen of the iPhone, without needing to scroll in the webView itself. For that, I need a way to get the total document size, including the scrollable area. I have tried a number of different Javascript solutions: (document.height !== undefined) ? document.height : document.body.offsetHeight // Returns height of UIWebView document.body.offsetHeight // Returns zero document.body.clientHeight // Returns zero document.documentElement.clientHeight // Returns height of UIWebView window.innerHeight // Returns height of UIWebView -2 Can you think of any other way to do it? Thanks.

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• Ever any performance different between Java >> and >>> right shift operators?

  - by Sean Owen

  Is there ever reason to think the (signed) and (unsigned) right bit-shift operators in Java would perform differently? I can't detect any difference on my machine. This is purely an academic question; it's never going to be the bottleneck I'm sure. I know: it's best to write what you mean foremost; use for division by 2, for example. I assume it comes down to which architectures have which operations implemented as an instruction.

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• Are there gotchas using varargs with reference parameters

  - by Roddy

  I have this piece of code (summarized)... AnsiString working(AnsiString format,...) { va_list argptr; AnsiString buff; va_start(argptr, format); buff.vprintf(format.c_str(), argptr); va_end(argptr); return buff; } And, on the basis that pass by reference is preferred where possible, I changed it thusly. AnsiString broken(const AnsiString &format,...) { ... the rest, totally identical ... } My calling code is like this:- AnsiString s1, s2; s1 = working("Hello %s", "World"); s2 = broken("Hello %s", "World"); But, s1 contains "Hello World", while s2 has "Hello (null)". I think this is due to the way va_start works, but I'm not exactly sure what's going on.

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• Simple way to implement computer-go board in Java

  - by codingbear

  I want to make a simple Go board to design an Computer Go game. In a go game, you lie a "stone" (white or black) on a position where horizontal and vertical lines intersect. What are some simple ways to restrict users from placing their stones in other locations? Maybe I'm just not seeing a simple solution. EDIT I guess I should rephrase my question better: I want to know how to do the background image of Go board, so that I can lie my stones on the intersection of the horizontal and the vertical lines. I was thinking about getting a just regular Go board image, and when I'm actually rendering stones, I find right position of pixels to lie stones. However, that solution did not seem to be the best solution, since I need to worry about size of stone images and think about proportionality when I either expand or shrink the board window.

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• Cant delete more than 200 contacts in HTC HERO

  - by rahul

  I'm working on security application which will copy all contacts to some other database and delete all contacts from phonebook. I'm testing this on android HTC HERO. I'm successful to delete contacts from phonebook and create new contact info database, Till 200 it is working, but after 200 contacts its not working properly. After tht application starts throwing error. There is one Sync with Google Option in MenuSettingData Sync, I think that is creating problem. There is notification that "Too many contacts deleted" n if i click tht there will b a dialog with title "Delete Limit exceeded". Is there anything i can do to stop syncronization or any other ideas by which i can achieve required output? Please Help me on this

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• Touchscreen using sound input?

  - by ricardowong

  Hi, i don't really know if it is actually possible, but i believe that it can be made. How possible is it to make a program that recognizes different sound bouncing from the screen and turn it into a position that will obviously be later fed to the mouse. I know that it sounds kind of dumb, but lately i've been noticing that a very dull, strong sound is made when touching the screen, and that sound varies when doing so at different positions. Probably the microphone "hears" differently because the screen acts as a drum with the casing. Anyways, what do you think, anyone has any experience programming with sound?

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• ASP.NET Session expires in no time?

  - by Galilyou

  Weired problem! ASP.NET Session expires instantly. In my web.config I have this session settings: <sessionState mode="InProc" timeout="10000" /> AFAIK the timeout attribute's value is in minutes and can't be greater than 525,600 minutes (1 year). I don't understand what I am doing wrong here. Why is the session expiring. Is it a server memory issue? I don't think so, the server is pretty descent and it has only one site which isn't doing much after all. Ideas? EDIT: After setting the cookiless attribute to true, and while noticing the session id on the url, I can see that the session id CHANGING. I assume that this means the session is expiring. The IIS Settings are correct AFAIK (the enable session state checkbox is checked, and the value of the time is 20). A Picture is worth 100 words:

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• The relationship between OPC and DCOM

  - by typoknig

  Hi all, I am trying to grasp the link between OPC and DCOM. I have watched all four of the tutorials here and I think I have a good feeling for what OPC is, but in one of the tutorials (the third one 35 seconds in) the narrator states that OPC is based on DCOM, but I do not understand how the two are really linked. My confusion comes from a question my professor posed in which he asked "How and where would you deploy OPC instead of DCOM and vice-versa." His question makes it seem like the two are not as linked as my research suggests. I'm not looking for anyone to answer the question, I just want to know the relation between OPC and DCOM, then I can figure the rest out. Specifically I would like to know if: 1.) One is always based on the other 2.) One can always be deployed without the other.

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• What way to use the CGContext to draw is suitable?

  - by Tattat

  I know that the CGContext cannot call it to draw directly, and it needs to fill the drawing logic in the drawInContext, and call the CGContext to draw using "setNeedsDisplay", so, I designed a cmd to execute, but it cause some problems... like this : http://stackoverflow.com/questions/2617827/why-i-cant-draw-in-a-loop-using-uiview-in-iphone I think the CGContext is very different from my previous programming experience....(I used HTML5 canvas, that allow me add more details, after I draw, so do the Java Swing) Actually, I want to know what is the suitable to implement these kind of thing in Apples' programmer mind. Thz.

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• jquery script removal

  - by VictorS

  I am working on a page(ASP.NET 3.5) that has alert when "Save" button is pressed, i.e.this in page code behind: Page.ClientScript.RegisterStartupScript(this.GetType(), "alertMsg", "alert('" + Message + "');", true); So when I look at the page after sucessful save I see a script tag added: <script type="text/javascript"> //<![CDATA[ alert('Save Sucessful.'); </script> The problem is that there is another button that redirects to another page and on that page there is a button to jump back to this page, i.e. javascript:history.go(-1); So if you save then go to another page and come back you see alert again. Unless there is a better way of handling this situation, I think I need to remove that script when I redirect from the page, can I do it with jQuery, i.e. on redirect button click remove above script from the page?

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• Loopless function calls on vector/matrix members in Matlab/Octave

  - by Sint

  I came into matrix world from loop world(C, etc) I would like to call a function on each individual member of a vector/matrix, and return the resulting vector/matrix. This is how I currently do it: function retval = gauss(v, a, b, c) for i = 1:length(v) retval(i) = a*(e^(-(v(i)-b)*(v(i)-b)/(2*c*c))); endfor endfunction Example usage: octave:47> d=[1:1000]; octave:48> mycurve=gauss(d, 1, 500, 100); Now, all advice on Matlab/Octave says: STOP whenever you catch yourself using loops and think of a better way of doing it. Thus, my question: Can one call a function on each member of a vector/matrix and return the result in a new vector/matrix all at once without using explicit loops? That is I am looking for something like this: function retval = newfun(v) retval = 42*(v^23); endfunction Perhaps, it is just syntactic sugar, that is all, but still would be useful to know.

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• Visual Studio 2008 debug does not stop on error

  - by Diana

  I have a simple Windows App written in Visual Studio 2008 (.NET 3.0, C#). Without making any change to the project, solution or Visual Studion (from what I can remember), something weird is happening: when I debug (or run) my application, when it hits an error, Visual Studio does not show me any messagebox with the error, and does not stop execution. It "looks" like nothing happended... the code after the error is not executed, but everything else continues to behave like nothing had happened. Any ideeas about what might be wrong? I don't think it's a big deal, but I can't seem to find it. Thanks!

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• [Programming General] Advantages of using software framework

  - by ignatius

  Hello, I was reading these days about large projects implementation in python and Flex, and very often people praise the use of framework (like Cairngorm, PureMVC or others) over traditional OOP coding. I think i dont really understand the advantage of using FW, which is the strong point over classic programming? how big should be the project in order to use FW? it is intended mainly for web-applications? or can be used for desktop apps as well? hope, all these doubts dont sound stupid to you, i am not Computer engineer, just electronic, so my knowledge of sw architecture is very limited. Br

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