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• Zoom image using delphi

  - by Himadri

  Hello All, I am working with delphi. I have TImage, to which I assign a bitmap. imgmain.Picture.Bitmap := bmpMain; imgmain.Picture.Bitmap.PixelFormat := pf24bit; imgmain is object of TImage and bmpMain is object of TBitmap I want to zoom my image. I have one trackbar on my form and as I click on trackbar the image should get zoom. What should I do? Thank You.

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• Creating a Custom UserControl TestContainer for Visual Studio

  - by AMissico

  I like to use the "UserControl TestContainer" that works great for testing a controls properties during design time. Yet it has limitations. Usually, I just create a Windows Form Application to test the control's run-time interface. It would be nice to combine the two phases. Today, I discovered that the test-container is defined in the project file as show below. What I like to do is create my own test-container and use it for my Windows Forms Control Library projects in Visual Studio 2008. I cannot find any specific documentation, and the documentation I found was related to MSTest and not helpful. Any help, suggestions, or research directions for implementing my own test-container? <ItemGroup> <Service Include="{94E38DFF-614B-4cbd-B67C-F211BB35CE8B}" /> </ItemGroup>

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• jquery - strange behavior in IE..

  - by stackoverflow

  I have an input field where name='id' <input type='hidden' name="id" /> While jquery lib works fine in Chrome, it fails in IE. It works when I change from id to idfield - but our server code breaks since it expects the form with element key id. Is there a work around for this? PS: I cannot change the server code. jquery version 1.3.2 using dynamic forms $(document).ready(function(){ $("#formRow").dynamicForm("#plus3", "#minus3", {limit:100, createColor:'yellow',removeColor: 'red' }); }); Happens when the Add row button is clicked

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• Is it possible to take a screenshot of a web page with Javascript or HTML5/Canvas?

  - by Ryan Kearney

  Is there a way I could insert some code into a page that would take a screenshot of what the user sees in the browser window, then upload that image via a web form of some sort? I'm working on a clone of a pay-to-use service that lets you install a widget on a web page which in turn allows viewers to report bugs in the sites layout. Currently they use a Java applet to take the screenshot, which, in my opinion, is probably the worst way to go about it (aside from requiring the user to install a plugin) Is there a javascript/flash/other alternative? Thanks

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• Microsoft Chart Control labels

  - by Serge

  Hello, I've been searching for a while and browsing through the samples but could not find a solution to my problem. In Microsoft Chart Control I have created a line series that plots real-time data. As new data points are added, the chart margins will sometimes jump on the form. I have tried disabling the grid lines and have determined that the margins change when the x-axis label overlaps with the y-axis label. I have tried auto-fitting the labels but that does not seem to work probably because it treat x-axis and y-axis separately. Is there any way to prevent the overlap, or keep the labels and corresponding grid lines stationery and just change their value when the data scrolls? Thank you for your help.

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• How can a hacker put a file on my server root (apache, php, 1and1)

  - by mike-sav

  Hi there, I have a site hosted on 1and1 and a couple of weeks ago I noticed a hacker had put a .php file on the server that when viewed in a browser exposed my DB schema, DB connection strings, FTP account (for file uploads using a form), etc, etc. Naturally I panicked and I wiped the server and reuploaded my files. Fortunatley I encrypt passwords using MD5 and I don't store things like credit card details, etc, etc. Now I checked my files and with all user input I use a clean function (htmlentities, sql_real_escape_string, etc, etc) that strips the input of any XSS or SQL injection. I have also made sure that the session key gets re-engineered when a user status changes (like they log into their account) to prevent session hijacking, my folder permissions are set to 755 and file permission are 644. Has anyone got any idea how this could have happened? Or if I'm missing something

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• Invoices for Printing in MS-Access

  - by Nitrodist

  The application that I'm currently working on has a funky set up for the invoices that they print. The form is the invoice that is printed out. I took a look at the Northwind DB and what it does is and it actually generates a report based on the record's information. What are the limitations of using Forms vs. Reports for printing out reports? One of the limitations that I've run into so far is that the printed page is jam packed with information (all required) to fit on a single page, yet there is lots of wasted space for some stuff since elements on the page don't shrink or grow due to what's inputted into the textboxes. How are invoices designed for your applications? How do you handle space restraints for creating invoices?

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• How to debug a WCF Service with an HTTP Context?

  - by JL

  I need to debug a WCF service but it needs to have an HTTP Context. Currently I have a solution with a WCF service web site, when I click on debug it starts up and then fires up an html page that contains no test form. While the project is running I tried starting the wcftestclient manually, then provided the address of my service, it finds the service but when I invoke it, it bypasses the IIS layer (or development server), so the httpContext is null... What is the correct way to debug a WCF service through an IIS context?

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• Spring-Security http-basic auth in addition to other authentication types

  - by Keith

  I have a pretty standard existing webapp using spring security that requires a database-backed form login for user-specific paths (such as /user/**), and some completely open and public paths (such as /index.html). However, as this webapp is still under development, I'd like to add a http-basic popup across all paths (/**) to add some privacy. Therefore, I'm trying to add a http-basic popup that asks for a universal user/pass combo (ex admin/foo) that would be required to view any path, but then still keep intact all of the other underlying authentication mechanisms. I can't really do anything with the <http> tag, since that will confuse the "keep out the nosy crawlers" authentication with the "user login" authentication, and I'm not seeing any way to associate different paths with different authentication mechanisms. Is there some way to do this with spring security? Alternatively, is there some kind of a dead simple filter that I can apply independently of spring-security's authentication mechanisms?

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• Winsock failed to connect to local ip address

  - by JKS

  I have used the following code in a form that acts like a server, WskServer(0).Close LocalIP = WskServer(0).LocalIP WskServer(0).LocalPort = DEFAULT_TCP_PORT WskServer(0).Protocol = sckTCPProtocol txtStatus.Text = "Starting server" Call WskServer(0).Bind(DEFAULT_TCP_PORT, LocalIP) WskServer(0).Listen when i execute above code,i received the following error "Address is not available from the local machine" . If i changed the line Call WskServer(0).Bind(DEFAULT_TCP_PORT, LocalIP) to Call WskServer(0).Bind(DEFAULT_TCP_PORT, "127.0.0.1") this is working What's wrong with the code?, can anybody give the fix Update I just removed the line Call WskServer(0).Bind(DEFAULT_TCP_PORT, LocalIP) now server working properly. this way is correct or not

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• ASP.NET MVC 2 - ViewData empty after POST

  - by Alex

  I don't really know where to look for an error... the situation: I have an ASPX view which contains a form and a few input's, and when I click the submit button everything is POST'ed to one of my ASP.NET MVC actions. When I set a breakpoint there, it is hit correctly. When I use FireBug to see what is sent to the action, I correctly see data1=abc&data2=something&data3=1234. However, nothing is arriving in my action method. ViewData is empty, there is no ViewData["data1"] or anything else that would show that data arrived. How can this be? Where can I start looking for the error?

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• ajax strange error with sending multiple parameter

  - by kawtousse

  hi everyone, please check with me where is the error in this ajax code to send 2 parameters: var xhr = getXhr(); // On défini ce qu'on va faire quand on aura la réponse xhr.onreadystatechange = function(){ // On ne fait quelque chose que si on a tout reçu et que le serveur est ok if(xhr.readyState == 4 && xhr.status == 200) { selects = xhr.responseText; // On se sert de innerHTML pour rajouter les options a la liste //document.getElementById('prjsel').innerHTML = selects; } }; xhr.open("POST","ServletEdition",true); xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded'); id=document.getElementById(idIdden).value; fu=document.getElementById("formUpdate").value; //alert(fu); var i=1; xhr.send("id=" +id+", fu="+i); i cant got the value of fu i don't know why. thanks

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• return false for parent javascript function

  - by jeerose

  $("#purchaser_contact").live('submit', function(){ $.ajax({ type: "POST", url: 'ajax/contactSearch.php', data: ({ fname: $("#fname").val(), lname: $("#lname").val(), city: $("#city").val(), state: $("#state").val() }), success: function(d) { var obj = JSON.parse( d ); if(obj.result != 0){ $("#contactSearch").remove(); $("#button-wrapper").before('<div id="contactSearch">' + obj.result + '</div>'); $("#contactSearch").slideToggle('slow'); //return false from submit!! }); }); I know there are other posts on this but I couldn't figure out how to apply them properly to my situation without making it messy. How do I return false on the submit event to prevent the form from submitting if I'm within the $.ajax and success functions? Thanks.

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• Image Data via Ajax - how can I display the image on the Page

  - by Mike B

  I am creating a Domino Document via AJAX that contains a photo. I am able to get the base64 image data back to the server in a Notes Domino Document. Data is stored in a Richtext (textarea) field as "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAFA..........." - (this goes on for several lines) I am trying to display on the Domino Webpage using passthru tag <<image id= "pic1" >> in the onLoad event of the Form i try to shove the data into the image element using this code: //Photo Stuff alert(document.forms[0].photo1.value); document.getElementById("pic1").src = document.forms[0].photo1.value; The alert is showing the data. Picture is not appearing. Please help. Thanks Mike

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• AutoHotkey ControlSend problem on one machine

  - by Illotus

  I have this AutoHotkey script that has a weird problem. It is used in 3 workstations, but in one the ControlSend doesn't seem to work as the hotkey doesn't work in program A. All three machines have Windows XP and are Pentium 4 level machines with mostly same software, the script is in exe form. I've tried a lot of different ways to send the hotkey to Program A, but nothing seems to work. The idea of the script is simply to catch a hotkey and click in another window in addition to its normal function. The normal function just doesn't work. Any ideas what could be the root of the problem and where I should look for it? #IfWinActive, Program A ^H:: IfWinActive, Program A { ControlFocus, MDIClient1, Program A, , , ControlSend, , ^H, Program A, , , ControlClick, X46 Y135, Program B, , LEFT , 1 return }

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• Erlang bit indexing

  - by GTDev

  I am currently trying to learn erlang and what I am trying to do is to perform an operation on specific indices of an array stored in a bit array or int. If there is a 0 in a position, the index into the array at that position is not used. So envision the following: Example the array is: [1, 3, 5, 42, 23] My bit array is: 21 = 10101 in binary so I'm using indicies 1,3,5 so I'm calling a function on [1, 5, 23] my function is of the form my_function(Array, BitArray) -> SubArray = get_subarray_from_bitarray(Array, BitArray), process_subarray(SubArray). And I need help with the get_subarray_from_bitarray(). I know erlang has special syntax around bit strings (something like <<) so is there an efficient way of indexing into the bit array to get the indicies?

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• t-sql recursive query

  - by stackoverflowuser

  Based on an existing table I used CTE recursive query to come up with following data. But failing to apply it a level further. Data is as below id name parentid -------------------------- 1 project 0 2 structure 1 3 path_1 2 4 path_2 2 5 path_3 2 6 path_4 3 7 path_5 4 8 path_6 5 I want to recursively form full paths from the above data. Means the recursion will give the following output. FullPaths ------------- Project Project\Structure Project\Structure\Path_1 Project\Structure\Path_2 Project\Structure\Path_3 Project\Structure\Path_1\path_4 Project\Structure\Path_2\path_5 Project\Structure\Path_3\path_6 Thanks

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• ASP.NET TextBox verses input type="text" behavior

  - by harrije

  I notice with ASP.NET if the server side control TextBox is used with out autopostback it will not submit (or postback) the form when typed text ends with enter, which is different from the behavior for plain old HTML pages. Fine, I can set autopostback to get the behavior I want after the enter key. However, autopostback will also cause submit (or postback) when the typed text does not end with enter but focus has changed (i.e. with tab or mouse click), which again is different from plain old HTML pages. How can I get an ASP.NET page to behave the same as a plain old HTML page with respect to text input regardless of whether enter key or change of focus occurs?

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• PHP upload file using PUT instead of POST

  - by Marco Demaio

  I read something about this on PHP docs, but it's not celar to me: Do the most widely used browsers (IE, FF, Chrome, Safari, Opera, ...) support this PUT method to uplaod files? What HTML should I write to make the browser call the server via PUT request. I mean do I need to write a FORM with an INPUT file field and just replace the attribute method="POST" with the method="PUT"? On the PHP docs (link above) they say a PUT request is much simplier than a POST request when uploading file, along with this advantage, what other advantages/disadvanatges do the PUT has comapred to teh POST? Thanks!

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• how to create Cross domain asp.net web service

  - by Prithvi Raj Nandiwal

  i have create a web service. i want to access this web service using Ajax jqury. i am able to access on same domain. but i want to access thia web service to another domain. Have any one idea. how to create cross domain web service in asp.net. any setting in web,config file so that i access it on another domain. my webservice [WebService(Namespace = "http://tempuri.org/")] [System.Web.Script.Services.ScriptService] public class Service : System.Web.Services.WebService { public Service () { } [WebMethod] public string SetName(string name) { return "hello my dear friend " + name; } } JavaScript $.ajax({ type: "GET", url:'http://192.168.1.119/Service/SetName.asmx?name=pr', ContentType: "application/x-www-form-urlencoded", cache: false, dataType: "jsonp", success: onSuccess });

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• Strategy to structure a search index in a relational database

  - by neilc

  I am interested in suggestions for building an efficient and robust structure for indexing products in a new database I am building (i'm using MySql) When a product is entered through the form there are three parts I am interested in indexing for searching purposes. The product title The product description Tags The most important is title, followed by tags, followed by the description. I was thinking of using the following structure CREATE TABLE `searchindex` ( `id` INT NOT NULL , `word` VARCHAR( 255 ) NOT NULL , `weighting` INT NOT NULL , `product_id` INT NOT NULL , PRIMARY KEY ( `id` ) ) Then each time a product is created I would split apart the title, description and tags (removing common words) and award them a weighting. Then it is trivial to select out the words and corresponding products and order them by weighting. Is there a better way to do this? I would be worried that this strategy would slow down over time and as the database filled up.

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• algorithm for checking addresses for matches?

  - by user151841

  I'm working on a survey program where people will be given promotional considerations the first time they fill out a survey. In a lot of scenarios, the only way we can stop people from cheating the system and getting a promotion they don't deserve is to check street address strings against each other. I was looking at using levenshtein distance to give me a number to measure similarity, and consider those below a certain threshold a duplicate. However, if someone were looking to game the system, they could easily write "S 5th St" instead of "South Fifth Street", and levenshtein would consider those strings to be very different. So then I was thinking to convert all strings to a 'standard address form' i.e. 'South' becomes 's', 'Fifth' becomes '5th', etc. Then I was thinking this is hopeless, and too much effort to get it working robustly. Is it? I'm working with PHP/MySql, so I have the limitations inherent in that system.

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• Custom HTTP Request headers in HTML

  - by matsko

  Does anyone know if its possible to send out custom http REQUEST headers in HTML without having to use javascript (no xhr wrapper). Would it be possible to define them as meta tags within the head? Or may they be defined in the form somewhere? <meta http-equip="x-something-custom" name="custom value" /> this works, however, this is a RESPONSE header. What I need to set a REQUEST header. I'm not looking for setting hidden fields in forms, but actual raw http header manipulation with html tags. Is this possible?

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• Mouse Capture and Selection

  - by Tommy

  I have a control, that moves around alot of different controls inside of it in the form of a grid. So basically, none of the container control is shown at any point. But i do have capture of all the mousedown and mousemove events of the controls inside. What id like to do, is create an effect alot like the desktop of a windows computer, where you can drag, and every control that is inside of the mouse's drag will be thrown in a list, and when the mouse is released i can perform an action on all the selected items. Is this possible?

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• Java: I am trying to server a zip file through a link, but the file comes out as being empty

  - by Ankur

  I am trying to server a zip file through a link, but the file comes out as being empty. My app takes a number of files and zips them up, then presents the user with a link to the file so he/she can download it. On the server I can see that the zip file is being created correctly, but when I download it from the server through the normal HTML link provided no data is downloaded i.e. a zip file is created locally but it has file size 0kb. The file names are of the form XPCS.2010-03-09.15.13.42.165.zip - will the dots cause problems?

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