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  • saving a records containing a member of type string to a file (Delphi, Windows)

    - by wonderer
    I have a record that looks similar to: type TNote = record Title : string; Note : string; Index : integer; end; Simple. The reason I chose to set the variables as string (as opposed to an array of chars) is that I have no idea how long those strings are going to be. They can be 1 char long, 200 or 2000. Of course when I try to save the record to a type file (file of...) the compiler complains that I have to give a size to string. Is there a way to overcome this? or a way to save those records to an untyped file and still maintain a sort of searchable way? Please do not point me to possible solutions, if you know the solution please post code. Thank you

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  • MSVC++ 6.0: Fatal error C1509 "Too many exception handler states in function"

    - by sep332
    I'm working on a project that uses a lot of generated files for a GUI. After some recent updates, I get this error. If I remove some controls (the new ones or some old ones, doesn't seem to matter which), the error goes away. I've temporarily worked around the problem, but I'd like a more permanent solution. I've seen mentioned on the web that there's a fix for this in VS.Net 2003, but I can't find anything for 6.0. Does anyone know of a hotfix or service pack that fixes this?

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  • Where to store things like user pictures using Azure? Blob Storage?

    - by n26
    I have just migrated a project of mine for test cases to Microsoft's azure. But for functionalities similar to an avatar upload I need write access to the files on the harddrive. But this is a cloud, so this is not possible. How can I build such functionalities instead? Should I use the Blob Storage or is there a better solution? Does it make sense to store all website images (f.e. layout images) in the Blob Storage? So I would have a Cookie-free Domain for my static content?

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  • preg_replace only replaces first occurrence then skips to next line

    - by Dom
    Got a problem where preg_replace only replaces the first match it finds then jumps to the next line and skips the remaining parts on the same line that I also want to be replaced. What I do is that I read a CSS file that sometimes have multiple "url(media/pic.gif)" on a row and replace "media/pic.gif" (the file is then saved as a copy with the replaced parts). The content of the CSS file is put into the variable $resource_content: $resource_content = preg_replace('#(url\((\'|")?)(.*)((\'|")?\))#i', '${1}'.url::base(FALSE).'${3}'.'${4}', $resource_content); Does anyone know a solution for why it only replaces the first match per line?

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  • Barplot in R, aggregation of sampled data

    - by Felix
    Hello, I want an stacked barplot, or at least two barplots (histogramms) of the data below. But I cant't figure out how. plot(online) is not the solution, I´m looking for. Please see below. online offline 1 sehrwichtig wichtig 2 wichtig unwichtig 3 sehrwichtig unwichtig 4 sehrwichtig sehrwichtig 5 sehrwichtig sehrwichtig 6 sehrwichtig unwichtig 7 sehrwichtig unwichtig 8 wichtig wichtig 9 wichtig unwichtig 10 sehrwichtig sehrwichtig 11 sehrwichtig wichtig 12 sehrwichtig unwichtig 13 wichtig sehrwichtig 14 sehrwichtig wichtig I know I need a step, where the data is aggregated to: online offline sehrwichtig 6 7 unwichtig 0 1 wichtig 3 5 But how?

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  • CSS Containers and Framing

    - by CaffeineAddiction
    I am attempting to code a dynamic object for use in an unordered list. I have a mock up of the HTML here: <ul class='Main'> <li class='Node'> <span class='Node_Light'> </span> <span class='Node_Control'> <span class='Ctrl_Name'> <span class='CtrlN_Text'>Random Name</span> <span class='CtrlN_Edit'>[%]</span> </span><br/> <span class='Ctrl_ID'>ff:ff:ff:ff:ff:ff</span><br/> <span class='Ctrl_Buttons'> <span class='CBttn_On'>[%]</span> <span class='CBttn_Off'>[%]</span> <span class='CBttn_Blink'>[%]</span> <span class='CBttn_Config'>[%]</span> <span class='CBttn_Graph'>[%]</span> </span> </span> <span class='Node_Data'> <span class='ND_Sens0'> <span class='Sens_Lable'>temp:</span> <span class='Sens_Data'>72</span> <span class='Sens_Units'>&#176;F</span> </span><br/> <span class='ND_Sens1'> <span class='Sens_Lable'>Sens1:</span> <span class='Sens_Data'>Off</span> <span class='Sens_Units'></span> </span><br/> <span class='ND_Sens2'> <span class='Sens_Lable'>Sens2:</span> <span class='Sens_Data'>Off</span> <span class='Sens_Units'></span> </span><br/> <span class='ND_Sens3'> <span class='Sens_Lable'>Sens3:</span> <span class='Sens_Data'>Off</span> <span class='Sens_Units'></span> </span><br/> <span class='ND_Sens4'> <span class='Sens_Lable'>Sens4:</span> <span class='Sens_Data'>Off</span> <span class='Sens_Units'></span> </span> </span> </li> </ul> and I am attempting to wrangle this HTML into something like: My first problem was that the 3x Outer elements would stack vertically instead of horizontally ... I solved this with the following CSS, but it doesnt feel like the right solution: ul { list-style-type: none; padding:0; margin:0; } .Node { } .Node_Light { height:6em; width:2em; position:absolute; border-style:solid; border-width:1px; } .Node_Control { height:6em; width:15em; position:absolute; left:2.55em; border-style:solid; border-width:1px; } .Node_Data { height:6em; width:6em; position:absolute; left:17.6em; border-style:solid; border-width:1px; } One thought was to use a table, but I dont think that is the correct solution either. Ideas? I would like to have the content dynamically resize on page resize and am not opposed to doing it all via JavaScript, but I have a feeling it would be more efficient to do it via CSS ... I just dont know where to begin.

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  • Android internet connectivity check problem

    - by Chaoz
    Hello, I'm new to Android development and working on an Android application that requires the phone to be connected to the internet, through either Wifi, EDGE or 3G. This is the code that I'm using: public static boolean isConnected() { ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); return cm.getActiveNetworkInfo().isConnectedOrConnecting(); } I've also set these permissions in the manifest file: <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> This works fine in the emulator running version 1.5 of Android when 3G is enabled, but it crashes when I disable the 3G connection. My application throws a null pointer exception when I call isConnectedOrConnecting(). Hope that anyone knows the solution to this. Thanks in advance!

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  • How to fix the flickering in User controls.

    - by Royson
    In my application i am constantly moving from one control to another. I have created no. of user controls, but during navigation my controls gets flicker. it takes 1 or 2 sec to update. I tried to set this SetStyle(ControlStyles.OptimizedDoubleBuffer, true); or SetStyle(ControlStyles.UserPaint, true); SetStyle(ControlStyles.AllPaintingInWmPaint, true); SetStyle(ControlStyles.DoubleBuffer, true); but it didn't help... Each control has same background image with different controls. So what is the solution for it.. Thanks.

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  • Android : How to Remove all capital letters from image filenames before importing into Eclipse

    - by Hubert
    As you know, you can't have capital letters in your image filenames that you use in your Android project (Ressource/Drawables folder). I've got hundreds of small images (GOOG.GIF as an exemple) that I need to import into my project (I usually do a simple drag and drop from a desktop folder into Eclipse). So here's the question : How do I quickly change all the filenames (replace all capital letters to lower case) before importing into my project ? So, GOOG.GIF becomes goog.gif AAPL.GIF becomes aapl.gif etc. Any quick command line solution or another tool to do just that ? Thanks.

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  • Linux c++ error: undefined reference to 'dlopen'

    - by lerax
    Hi all! I work in Linux with c++ (eclipse) and want to use a library. Eclipse shows me an error: undefined reference to 'dlopen' Do you know a solution? Here is my code. #include <stdlib.h> #include <stdio.h> #include <dlfcn.h> int main(int argc, char **argv) { void *handle; double (*desk)(char*); char *error; handle = dlopen ("/lib/CEDD_LIB.so.6", RTLD_LAZY); if (!handle) { fputs (dlerror(), stderr); exit(1); } desk= dlsym(handle, "Apply"); if ((error = dlerror()) != NULL) { fputs(error, stderr); exit(1); } dlclose(handle); }

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  • How to create digital signature that can not be used to reproduce the message twice

    - by freediver
    I am creating a client-server application and I'd like to send data from server to client securely. Using public/private key algorithms makes sense and in PHP we can use openssl_sign and openssl_verify functions to check that the data came by someone who has the private key. Now imagine that one of the actions sent by server to client is destructive in nature. If somebody uses an HTTP sniffer to catch this command (which will be signed properly) how can I further protect the communication to ensure that only commands coming from our server get processed by the client? I was thinking about using current UTC time as part of the encrypted data but client time might be off. Is there a simple solution to the problem?

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  • Looking for an algorithm in vb.net or c# but I don't know it's name!

    - by Jules
    I'll do my best to explain what the algorithm is supposed to do: There's a class 'Recipe'. Each Recipe can include other Recipes but cannot include itself or any other Recipe that includes it. So, a simple example is we have just two Recipes A & B. If A adds B first, then later on B cannot add A because it will cause a loop. A more complicated example is: A,B,C (1) Recipe C Adds B (2) Recipe B Adds A (3) Recipe A attempts to add C, but can't because of the relationship. C - B - A. I can do this myself, I just wondered if this was a standard named algorithm and I could grab the optimal solution. Thanks

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  • Tkinter mouse event initially triggered

    - by user3714884
    I'm currently learning Tkinter and I cannot find a solution for my problem here nor outside Stackoverflow. In a nutshell, all events that I bind to my widgets are triggered initialy and don't respond to my actions. In this example, the red rectangle appears on the canvas when I run the code, and color=random.choice(['red', 'blue']) revealed that the event binding doesn't work after that: import Tkinter as tk class application(tk.Frame): def __init__(self, master=None): tk.Frame.__init__(self, master) self.can = tk.Canvas(master, width=200, height=200) self.can.bind('<Button-2>', self.draw()) self.can.grid() def draw(self): self.can.create_rectangle(50, 50, 100, 100, fill='red') app = application() app.mainloop() I use a Mac platform, but I haven't got a clue about its role in the problem. Could anyone please point me at the mistake i did here?

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  • What's the cross-browser way to capture all single clicks on a button?

    - by sany
    What's the best way to execute a function exactly once every time a button is clicked, regardless of click speed and browser? Simply binding a "click" handler works perfectly in all browsers except IE. In IE, when the user clicks too fast, only "dblclick" fires, so the "click" handler is never executed. Other browsers trigger both events so it's not a problem for them. The obvious solution/hack (to me at least) is to attach a dblclick handler in IE that triggers my click handler twice. Another idea is to track clicks myself with mousedown/mouseup, which seems pretty primitive and probably belongs in a framework rather than my application. So, what's the best/usual/right way of handling this? (pure javascript or jQuery preferred)

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  • main content wrapper div get's pushed down the page in IE

    - by Blankman
    I have a 2 column layout, with the left side for navigation and the right side for the main content. The right side content has a wrapper div that looks like: Now this looks fine in FF and GC, and it IE but if I change the padding to anything over 4px that section gets pushed down below the left navigation. #content { padding:3px; // 4 makes it get pushed down } Does this mean IE has a different way of calculating the width of all my elements? Is this a common problem that has a solution for it?

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  • error in htaccess not read my images and css file

    - by Mahran Elneel
    i create .htaccess and when run the page all images in my site not display and css not run. images in the folder (images/) and css in(css/). another problem the url now is http://localhost/mysite/progams/4 and when click link inside this page will be http://localhost/mysite/progams/program/6 please any one have a solution? .htaccess code Options +FollowSymLinks RewriteEngine On # Turn on the rewriting engine RewriteRule ^program/([0-9]+)/?$ get_programs.php?pack_id=$1 [NC,L] RewriteRule ^El-Mensajero/?$ home.php [NC,L] RewriteRule ^Daily-Tours/?$ daily_tours.php [NC,L] RewriteRule ^page/([0-9]+)/?$ get_pages.php?page_id=$1 [NC,L] thank you

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  • Are there Adaptive Replacement Cache patent-free alternatives?

    - by aleccolocco
    An open source high-performance project I'm working on needs to keep a cache of parsed/compiled files. A plain LRU or a plain LFU wouldn't fit. Plain LRU wouldn't work as there will be remote batch/spider processes hitting the service regularly. Plain LFU wouldn't work because content will age. ARC seems like the perfect solution but since IBM holds patents to it at least one open source project dropped it. Are there any (good enough) alternatives? EDIT: I'm not looking for exactly the same thing, just something that could handle those two situations. Perhaps some simple strategy with timestamps and sources. There have to be many programmers who faced this situation before. That's why the "good enough" bit.

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  • What's currently the best way to extend Excel using C#?

    - by user169867
    I have the professional versions of VS2008 & VS2010. I wish to add a couple buttons to a toolbar in Excel. When they are clicked I'd like to be able to open a form (either WinForms or WPF is fine) collect a few values from the user in the form and then take that data + read cell values from the current worksheet to perform some database operations. What's currently the best way to do this using C#? I'd greatly appreciate a pointer to any examples / tutorials. My understanding is that VS2010 has improved the process alot but I may have to deal w/ Excel 2003 which I don't think it supports. I get confused between Visual Studio 2008s Extensibility-Shared Addin template and other Office Addin templates I've seen. I'm not sure when which type of solution is appropriate. I'm new to Office development so I'd really appreciate any help to get me going on the right track. Thanks much.

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  • Bit Flipping in Hex

    - by freyrs
    I have an 8 digit hexadecimal number of which I need certain digits to be either 0 or f. Given the specific place of the digits is there a quick way to generate the hex number with those places "flipped" to f. For example: flip_digits(1) = 0x000000f flip_digits(1,2,4) = 0x0000f0ff flip_digits(1,7,8) = 0xff00000f I'm doing this on an embedded device so I can't call any math libraries, I suspect it can be done with just bit shifts but I can't quite figure out the method. Any sort of solution (Python, C, Pseudocode) will work. Thanks in advance.

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  • Java/C++ communication via pipe on Windows

    - by Warlax
    Hi, I have two separate programs, one in Java and one in C++, both running on Windows. We need to do bidirectional interprocess communication between the two. Up until now, we were using this awkward solution of writing to text files and reading them on the other side, where the producer would generate a .lock file when it's done writing and the consumer would remove that when it's done reading... like I said, awkward. If we were on *nix, we would use a pipe using popen() on the C++ and RadomAccessFile on the Java side. It seems to work well. What can we do on Windows? Can we use named pipes? Thank you.

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  • MS Access CrossTab query - across 3 tables

    - by Prembo
    Hi, I have the following 3 tables: 1) Sweetness Table FruitIndex CountryIndex Sweetness 1 1 10 1 2 20 1 3 400 2 1 50 2 2 123 2 3 1 3 1 49 3 2 40 3 3 2 2) Fruit Name Table FruitIndex FruitName 1 Apple 2 Orange 3 Peaches 3) Country Name Table CountryIndex CountryName 1 UnitedStates 2 Canada 3 Mexico I'm trying to perform a CrossTab SQL query to end up with: Fruit\Country UnitedStates Canada Mexico Apple 10 20 400 Orange 50 123 1 Peaches 49 40 2 The challenging part is to label the rows/columns with the relevant names from the Name tables. I can use MS Access to design 2 queries, create the joins the fruit/country names table with the Sweetness table perform crosstab query However I'm having trouble doing this in a single query. I've attempted nesting the 1st query's SQL into the 2nd, but it doesn't seem to work. Unfortunately, my solution needs to be be wholly SQL, as it is an embedded SQL query (cannot rely on query designer in MS Access, etc.). Any help greatly appreciated. Prembo.

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  • WCF REST Does Not Contain All of the Relative File Path

    - by Brandon
    I have a RESTful WCF 3.5 endpoint as such: System.Security.User.svc This is supposed to represent the namespace of the User class and is desired behavior by our client. I have another endpoint I created for testing called: Echo.svc I am writing an overridden IHttpModule and in my module, I follow what almost everyone does by doing: string path = HttpContext.Current.Request.AppRelativeCurrentExecutionFilePath; If I make a call to: http://localhost/services/Echo/test My path variable has a value of '~/echo/test' However, when I make a call to: http://localhost/services/System.Security.User/test My path variable has a value of '~/system.security.user' In my 2nd situation, it is stripping off the '/test' on the end of any endpoint that contains multiple periods. This is undesired behavior and the only solution I have found to fixing this is some ugly string manipulation using the property which does contain the complete URL path: string rawPath = HttpContext.Current.Request.RawUrl; This returns '/services/system.security.user/test'. Does anyone know why my first situation does not return the rest of the URL path for endpoints that contain multiple periods in the name?

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  • Intercepting static and dynamic links using javascript

    - by soren.qvist
    Hi, I'm currently developing an ajax application and I'm looking for a feature that lets me intercept all static and dynamic links using javascript. The links look like these: <a href="link1/">link 1</a> <a href="link2/">link 2</a> etc. I then want the browser to redirect to: current.page/#link1/ rather than current.page/link1/. I'm using jQuery, so the live() function is an option, however using that as a solution just seems rather sluggish to me(am I hysterical?). If there is a way to intercept ALL links on a page, maybe through detecting a change in the address, that would greatly help. I've tried a few plugins for jQuery (jQuery address & SWFaddress) but they only seem to have event handlers that respond to changes in anchor tags in the address. Any ideas? thanks for your time

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  • Handling multiple async HTTP requests in Silverlight serially

    - by Jeb
    Due to the async nature of http access via WebClient or HttpWebRequest in Silverlight 4, when I want to do multiple http get/posts serially, I find myself writing code that looks like this: doFirstGet(someParams, () => { doSecondGet(someParams, () => { doThirdGet(... } }); Or something similar. I'll end up nesting subsequent calls within callbacks usually implemented using lambdas of some sort. Even if I break things out into Actions or separate methods, it still ends up being hard to read. Does anyone have a clean solution to executing multiple http requests in SL 4 serially? I don't need things to be synchronous, I just want serial execution.

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  • Interface name as a Type

    - by user1889148
    I am trying to understand interfaces in Java and have this task to do which I am a stack with. It must be something easy, but I don't seem to see the solution. Interface contains a few methods, one of them should return true if all elements of this set are also in the set. I.e. public interface ISet{ //some methods boolean isSubsetOf(ISet x); } Then the class: public class myClass implements ISet{ ArrayList<Integer> mySet; public myClass{ mySet = new ArrayList<Integer>(); } //some methods public boolean isSubsetOf(ISet x){ //method body } } What do I need to write in method body? How do I check that the instance of myClass is a subset of ISet collection? I was trying to cast, but it gives an error: ArrayList<Integer> param = (ArrayList<Integer>)x; return param.containsAll(mySet);

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