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  • Cryptic C++ "thing" (function pointer)

    - by m00st
    What is this syntax for in C++? Can someone point me to the technical term so I can see if I find anything in my text? At first I thought it was a prototype but then the = and (*fn) threw me off... Here is my example: void (*fn) (int&,int&) = x;

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  • Store files in C# EXE file

    - by sublay
    It is actually useful for me to store some files in EXE to copy to selected location. I'm generating HTML and JS files and need to copy some CSS, JS and GIFs. Snippet System.IO.File.WriteAllBytes(@"C:\MyFile.bin", ProjectNamespace.Properties.Resources.MyFile); doesn't work for me! On "WriteAllBytes" it says: "cannot convert from 'System.Drawing.Bitmap' to 'byte[]'" for image and "cannot convert from 'string' to 'byte[]'" for text file. Help!

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  • Bit convector : Get byte array from string

    - by nCdy
    When I have a string like "0xd8 0xff 0xe0" I do Text.Split(' ').Select(part => byte.Parse(part, System.Globalization.NumberStyles.HexNumber)).ToArray(); But if I got string like "0xd8ffe0" I don't know what to do ? also I'm able for recommendations how to write byte array as one string.

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  • MS Exam 70-536 - How can you constrain the input before you write any code?

    - by Max Gontar
    Hello! In MS Exam 70-536 .Net Foundation, Chapter 3 "Searching, Modifying, and Encoding Text" in Case Scenario 1 related to regex there is a question: How can you constrain the input before you write any code? I thought it's maybe a in-mind design of regex pattern but it will not really constrain the input, will it? I am not so good in psychokinesis yet! Or maybe the is some other way? Thanks for your time!

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  • Check for opened Browser using WatiN

    - by SD
    I want to check if an IE is already opened or not If IE is opened so i.e. Goto("WWW.GOOGLE.COM"); else open new IE and goto Yahoo.com for example: br = new WatiN.Core.IE(@textBox1.Text); then when I press a button I want to check if IE is opened or not and perform the previous scenario.

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  • Codeigniter: Retrieving data on button click with Ajax

    - by OllyTenerife
    I have a simple webpage which generates a random quote from my database upon refreshing the page. I wish to implement some AJAX and JQuery in order to generate quotes via the button rather than having to refresh the page. I have done some research but I am not sure how to implement this in Codeigniter. My current code is below... Page controller: public function index() { $this->load->model('quote_model', '', TRUE); $data['quotes'] = $this->quote_model->getRandom(); $this->load->view('home', $data); } The view: <?php include ('layout/header.php'); ?> <div class="container-fluid"> <div class="row"> <div class="col-md-4 quote-holder"> <img src="application/assets/alan1.jpg" alt="..." class="img-circle img-responsive"> <br> <blockquote class="text-center"> <p><?php echo $quotes[0]['quote']; ?></p> <footer class="text-center"><?php echo $quotes[0]['character_name']; ?> in <cite title="Source Title"><?php echo $quotes[0]['series_name']; ?></cite></footer> </blockquote> <button type="button" class="btn btn-default center-block">Generate quote</button> </div> </div> <?php include ('layout/footer.php'); ?> Here is the function in the model I am retrieving the data from: function getRandom() { $query = $this->db->query(" SELECT * FROM quotes, characters, series WHERE quotes.series_id = series.series_id AND quotes.character_id = characters.character_id ORDER BY rand() LIMIT 1 "); return $query->result_array(); } Should I simply be using something like this? $("button").click(function(){ $.get( "Page/index", function( data ) { //output data to page element... } });

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  • what does '-' stand for in bash?

    - by trybeingarun
    Hi, What exactly are the uses of '-' in bash? I know they can be used for 1. cd - # to take you to the old 'present working directory' 2. some stream generating command | vim - # somehow vim gets the text. My question is what exactly is - in bash? In what other contexts can I use it? Regards Arun

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  • [winapi] Three questions about editbox ?

    - by subSeven
    Hello! I have three questions about editbox control in WINAPI (i can't find information on msdn about this) 1. How to disable moving typeing cursor with mouse, arrows, backspace in editbox ? I want to make typing like in command line in dos, but with out backspace. Can I write some piece of text with red color, and another with blue ? How to write to editbox control from another thread ?

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  • Barcode reading method?

    - by Atlas
    I recently acquired a Metrologic Barcode scanner (USB port), as everyone already knows it works as a keyboard emulator out of the box. Now my question, how do I configure the scanner and my application, so that my app can process the barcode data directly. That is, I don't want the user to focus on a "Text field" and then process the data when the KeyPress event fires.

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  • Books on string algorithms

    - by Max
    There have been numerous posts on string algorithms: http://stackoverflow.com/questions/246961/algorithm-to-find-similar-text, http://stackoverflow.com/questions/451884/similar-string-algorithm, http://stackoverflow.com/questions/613133/efficient-string-matching-algorithm However, no general literature was mentioned. Could anyone recommend a book(s) that would thoroughly explore various string algorithms? The topic which is of special interest is approximate string matching [things like google-offered corrected search string variants :) ]. Thanks a lot for advice.

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  • Tried http post doesn't work

    - by Rebol Tutorial
    I wanted to try the example here http://www.codeconscious.com/rebol/rebol-net.html#HTTP print read/custom http://babelfish.altavista.com/translate.dyn reduce ['POST {text=REBOL+Rules&lp=en_fr}] Since the page has changed since I modified it to write clipboard:// read/custom http://babelfish.altavista.com/translate.dyn reduce ['POST {trtext=hello+world&lp=en_fr&btnTrTxt=Translate}] It does return an html page but it doesn't contain any translation. What did I miss thanks ?

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  • Get values from HTML in a multidimensional array and calculate values using PHP

    - by Frank Nwoko
    I have searched but could not get solution on this issue. I am working on an application which will generate unknown number of items and have users select the quantity from a drop down against each item. Eg. Item(s) | price | Select qty Rice 23 3 Beans 22 4 Eggs 52 5 ... ... ... unknown Please, how can I capture the above in an array and also calculate the total value for all selected items and corresponding fees? I have the following HTML code: <form id='form1' name='form1' method='post' action='item_calc.php'> <?php ..... while($t_row = mysql_fetch_assoc($get_items)) { echo "<p><label>$t_row['$item_name'] <input type='text' READONLY name='item_price[]' value='$t_row['$item_price']' /></label> <input type='text' READONLY name='item_fees[]' value='$t_row['$item_fee']' /> <select name="item_qty"> <option value="1"> <option value="2"> <option value="3"> <option value="4"> <option value="5"> </select> </p><p>"; } echo "<label><input type='submit' name='submit' value='Submit' /></label></p> </form>"; Please, how can I get item_price[] + item_fees[] * item_qty for all selected items? This is what I have tried: for ($i = 0; $i < count($_POST['item_price']); $i++) { // Do something here with $_POST['checkbx'][$i] foreach ($_POST['item_fees'] as $tkey => $tvalue) { //echo "Key: $tkey; Value: $tvalue<br>"; } foreach ($_POST['item_price'] as $pkey => $pvalue) { //echo "Key: $pkey; Value: $pvalue<br>"; } $total = $tvalue + $pvalue; } echo $total;

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  • In Javascript, a function starts a new scope, but we have to be careful that the function must be in

    - by Jian Lin
    In Javascript, I am sometimes too immerged in the idea that a function creates a new scope, that sometimes I even think the following anonymous function will create a new scope when it is being defined and assigned to onclick: <a href="#" id="link1">ha link 1</a> <a href="#" id="link2">ha link 2</a> <a href="#" id="link3">ha link 3</a> <a href="#" id="link4">ha link 4</a> <a href="#" id="link5">ha link 5</a> <script type="text/javascript"> for (i = 1; i <= 5; i++) { document.getElementById('link' + i).onclick = function() { var x = i; alert(x); return false; } } </script> but in fact, the anonymous function will create a new scope, that's right, but ONLY when it is being invoked, is that so? So the x inside the anonymous function is not created, no new scope is created. When the function was later invoked, there is a new scope alright, but the i is in the outside scope, and the x gets its value, and it is all 6 anyways. The following code will actually invoke a function and create a new scope and that's why the x is a new local variable x in the brand new scope each time, and the invocation of the function when the link is clicked on will use the different x in the different scopes. <a href="#" id="link1">ha link 1</a> <a href="#" id="link2">ha link 2</a> <a href="#" id="link3">ha link 3</a> <a href="#" id="link4">ha link 4</a> <a href="#" id="link5">ha link 5</a> <script type="text/javascript"> for (var i = 1; i <= 5; i++) { (function() { var x = i; document.getElementById('link' + i).onclick = function() { alert(x); return false; } })(); // invoking it now! } </script> If we take away the var in front of x, then it is a global x and so no local variable x is created in the new scope, and therefore, clicking on the links get all the same number, which is the value of the global x.

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  • Django/jquery: Address forms - dyamically adding state drop down list if country is United States?

    - by User
    I have a django html form for address information. There is standard street, city, state/province, postal code, country fields. The country field is a drop down list. How can I make the state/province field a drop down list if the selected country is united states and a free form text box if the country is anything else? I'd prefer not to have to do a round trip to the server so probably through jquery?

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  • How to delete empty lines in multi-ranges in Vim

    - by Kev
    I get a text file: <p>...</p> <pre> ... ... ... ... </pre> <p>...</p> <p>...</p> <p>...</p> <pre> ... ... ... </pre> <p>...</p> Notice that: there are some empty lines between [pre]...[/pre]. I want to delete them. But, I want keep those in [ p]...[/p] The text file becomes: <p>...</p> <pre> ... ... ... ... </pre> <p>...</p> <p>...</p> <p>...</p> <pre> ... ... ... </pre> <p>...</p> I use the cmd below to located them: /<pre>\n\zs\_.\{-}\ze\n<\/pre> But I don't know what to do next! I need a one-line-cmd to do this. Any idea? Thanks! The simpler, the better! Edit: Thank you all. I just figure out how to do it with the help of my another question :g/<pre>/,/<\/pre>/s/^$\n//

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  • Get the label of click check box

    - by CliffC
    hi i have a page which generate check boxes dynamically and i have the following event which fires every time a user click on any of the check boxes $(':checkbox').click(function() { }); My question is how can i get the text of the check box that has been trigger by the user? Thank you

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  • Is it possible to customize the Outlook Conferencing Add in?

    - by ria
    I want to modify the labels of the outlook conferencing add in... e.g. I want to change the "Schedule a live meeting" text to say "Schedule my meeting". is it possible using VSTO? or I can create only new add ins using VSTO and not customize the existing ones ?? (I am talking abt this conferencing add in: http://aspoc.net/archives/2008/09/10/download-the-office-live-meeting-2007-client-and-conferencing-add-in-for-outlook/)

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  • <a> with an inner <span> not triggering :active state in IE

    - by Adam Singer
    I want to style the :active state of a button that is represented by an . The tag has an inner (beacuse I want to add an icon to this button). I notice the :active state is triggered properly in everything but Internet Explorer. In IE, it appears that the area around the (the 's padding) triggers that :active state, but when clicking directly on the text within the , the :active state is not triggered. Is there a way to fix this without resorting to Javascript?

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