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  • Rendering GDI components to a buffer or d3d texture

    - by Tim
    Hi, I'm trying to redirect the output of a GDI application to a buffer, preferably a d3d texture but I'll settle for a system memory buffer that I can then copy to a d3d texture. Specifically, I'm trying to get Google Chrome to render into a d3d buffer to be displayed in a d3d application. Are there any foolproof ways to do this or am I opening the mother of all worm-cans? Thanks, Tim.

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  • Table filtering in jquery - a more elegant solution please

    - by Neil Burton
    I want to filter certain rows out of a table and am using classes to categorise the rows. The below code enables me to show and hide row data categorised as "QUO" and "CAL" (eventually there will be other categories. Can someone point me towards a more elegant solution, so I don't have to duplicate code for each category as I have below? Thanks! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <html> <head> <title>Untitled</title> <style> </style> <script src="Javascript/jquery-1.4.2.min.js" type="text/javascript"></script> <script type="text/javascript"> $(document).ready(function () { $("#toggle_ac_cal").click(function() { var checked_status = this.checked; if (checked_status==true) { $(".ac_cal").show() } else { $(".ac_cal").hide() } }); $("#toggle_ac_quo").click(function() { var checked_status = this.checked; if (checked_status==true) { $(".ac_quo").show() } else { $(".ac_quo").hide() } }); }); </script> </head> <body> <input type="checkbox" id="toggle_ac_cal" checked="checked" />CAL<br/> <input type="checkbox" id="toggle_ac_quo" checked="checked" />QUO<br/> <table> <tbody> <tr class="ac_cal"> <td>CAL</td> <td>10 Oct</td> <td>John Barnes</td> </tr> <tr class="ac_cal"> <td>CAL</td> <td>10 Oct</td> <td>Neil Burton</td> </tr> <tr class="ac_quo"> <td>QUO</td> <td>11 Oct</td> <td>Neil Armstrong</td> </tr> </tbody> </table> </body> </html>

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  • Sending multiline message via sockets without closing the connection

    - by Yasir Arsanukaev
    Hello folks. Currently I have this code of my client-side Haskell application: import Network.Socket import Network.BSD import System.IO hiding (hPutStr, hPutStrLn, hGetLine, hGetContents) import System.IO.UTF8 connectserver :: HostName -- ^ Remote hostname, or localhost -> String -- ^ Port number or name -> IO Handle connectserver hostname port = withSocketsDo $ do -- withSocketsDo is required on Windows -- Look up the hostname and port. Either raises an exception -- or returns a nonempty list. First element in that list -- is supposed to be the best option. addrinfos <- getAddrInfo Nothing (Just hostname) (Just port) let serveraddr = head addrinfos -- Establish a socket for communication sock <- socket (addrFamily serveraddr) Stream defaultProtocol -- Mark the socket for keep-alive handling since it may be idle -- for long periods of time setSocketOption sock KeepAlive 1 -- Connect to server connect sock (addrAddress serveraddr) -- Make a Handle out of it for convenience h <- socketToHandle sock ReadWriteMode -- Were going to set buffering to LineBuffering and then -- explicitly call hFlush after each message, below, so that -- messages get logged immediately hSetBuffering h LineBuffering return h sendid :: Handle -> String -> IO String sendid h id = do hPutStr h id -- Make sure that we send data immediately hFlush h -- Retrieve results hGetLine h The code portions in connectserver are from this chapter of Real World Haskell book where they say: When dealing with TCP data, it's often convenient to convert a socket into a Haskell Handle. We do so here, and explicitly set the buffering – an important point for TCP communication. Next, we set up lazy reading from the socket's Handle. For each incoming line, we pass it to handle. After there is no more data – because the remote end has closed the socket – we output a message about that. Since hGetContents blocks until the server closes the socket on the other side, I used hGetLine instead. It satisfied me before I decided to implement multiline output to client. I wouldn't like the server to close a socket every time it finishes sending multiline text. The only simple idea I have at the moment is to count the number of linefeeds and stop reading lines after two subsequent linefeeds. Do you have any better suggestions? Thanks.

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  • Mathematical attack on the Digital Signature Algorithm

    - by drelihan
    Does anybody know the mathematics behind an attack on DSA where modulus p has p-1 made up of only small factors. In reality, this would not happen as the key generator would guarantee that this is not so. There is much information on the web on generating good input paramters for DSA so that it is hard to crack but no information on how you find X if modulus p has p-1 made up of only small factors.

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  • Helping using FirePHP to debug a .php application

    - by Angela
    Hi, just set up FirePHP and using a framework called Qcodo / Qcubed. Has anyone heard of these on SO? Been having challenges debugging -- trying to do a fairly simple new() and save() and then output via Ajax but not getting any kind of responsiveness from errors. Any help for us, two of us have checked it out but can't seem to get a response. Thanks! BTW, here's the class which seems to be creating the problems: http://github.com/allyforce/AF-upload/blob/master/Library/Target1.class.php

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  • Automatic database schema generation and migration with Perl

    - by pistacchio
    In Ror or Django or web2py you can "describe" a database (as a set of classes that remaps to tables) and the framework (having being provided with a connection string to the desired database) generates the tables, fields, relations and in the case of RoR and web2py it also keeps it up-to-date (eg, removing a class drops the table, adding a property to the class triggers an "alter table add" etc). Is there any Perl module that does the same? Eg, it takes the YAML/XML/JSON description of a database as input and modifies/generates the database schema accordingly?

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  • How to define and use Python generators appropriately

    - by Morlock
    I want to define a generator from a list that will output the elements one at a time, then use this generator object in an appropriate manner. a = ["Hello", "world", "!"] b = (x for x in a) c = next(b, None) while c != None: print c, c = next(b, None) Is there anything wrong or improvable with the while approach here? Is there a way to avoid having to assign 'c' before the loop? Thanks!

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  • How can I make kml data look like google maps?

    - by celenius
    I have a program that generates a .shp file, and exports this as a kml file. I would like to be able to display my output using the standard google map 'map' style (gray background, yellow streets, etc) in google earth, or in the google earth api. Is there a style guide or method that I should be using? Any thoughts appreciated - I wasn't sure how to structure this question. Thank you.

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  • Model-View-Controller in JavaScript

    - by Casey Hope
    tl;dr: How does one implement MVC in JavaScript in a clean way? I'm trying to implement MVC in JavaScript. I have googled and reorganized with my code countless times but have not found a suitable solution. (The code just doesn't "feel right".) Here's how I'm going about it right now. It's incredibly complicated and is a pain to work with (but still better than the pile of code I had before). It has ugly workarounds that sort of defeat the purpose of MVC. And behold, the mess, if you're really brave: // Create a "main model" var main = Model0(); function Model0() { // Create an associated view and store its methods in "view" var view = View0(); // Create a submodel and pass it a function // that will "subviewify" the submodel's view var model1 = Model1(function (subview) { view.subviewify(subview); }); // Return model methods that can be used by // the controller (the onchange handlers) return { 'updateModel1': function (newValue) { model1.update(newValue); } }; } function Model1(makeSubView) { var info = ''; // Make an associated view and attach the view // to the parent view using the passed function var view = View1(); makeSubView(view.__view); // Dirty dirty // Return model methods that can be used by // the parent model (and so the controller) return { 'update': function (newValue) { info = newValue; // Notify the view of the new information view.events.value(info); } }; } function View0() { var thing = document.getElementById('theDiv'); var input = document.getElementById('theInput'); // This is the "controller", bear with me input.onchange = function () { // Ugly, uses a global to contact the model main.updateModel1(this.value); }; return { 'events': {}, // Adds a subview to this view. 'subviewify': function (subview) { thing.appendChild(subview); } }; } // This is a subview. function View1() { var element = document.createElement('div'); return { 'events': { // When the value changes this is // called so the view can be updated 'value': function (newValue) { element.innerHTML = newValue; } }, // ..Expose the DOM representation of the subview // so it can be attached to a parent view '__view': element }; } How does one implement MVC in JavaScript in a cleaner way? How can I improve this system? Or is this the completely wrong way to go, should I follow another pattern?

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  • Using jQuery live() to initialize plugins?

    - by cxfx
    Using jQuery, what's the best way to automatically initialize a plugin on all current and future elements of a specific class? For example, say I want all <input type="text" class="datepicker" /> elements to have the jQuery UI Datepicker plugin, including any I might create at runtime. Essentially, I want to do something like this: $('.datepicker').live('create', function() { $(this).datepicker(); }); But, of course, there isn't a create event I can use.

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  • JavaScript: How to get the instance name of an object

    - by Quandary
    I use the below code to write code to query a web method in a specified interval. now in the this.Poll function I have to do this.tmo = setTimeout(this.strInstanceName + ".Poll()", this.iInterval); instead of this.tmo = setTimeout(this.Poll(), this.iInterval); because IE looses the this object after setTimeout So I have to pass the class it's instance name: var objPoll = new cPoll("objPoll"); How can I get the instance name without passing it as parameter ? I want to have it outta there ! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head> <title>Intervall-Test</title> <script type="text/javascript" language="javascript"> function test() { alert("Test"); test.tmo = setTimeout(test, 2000); test.Clear = function() { clearTimeout(test.tmo); } } function cPoll(strInstanceName) { this.strInstanceName = strInstanceName ; this.iInterval = 2000; this.tmo=null; this.cbFunction=null; alert(this.Name ); this.Poll = function() { this.cbFunction(); this.tmo = setTimeout(this.strInstanceName + ".Poll()", this.iInterval); } this.Start = function(pCallBackFunction, iIntervalParameter) { if(this.tmo != null) this.Stop(); if(iIntervalParameter && iIntervalParameter > 0) this.iInterval=iIntervalParameter; this.cbFunction=pCallBackFunction; if(this.cbFunction!=null) this.Poll(); else alert("Invalid or no callback function specified"); } this.Stop = function() { if(this.tmo != null) { clearTimeout(this.tmo); this.tmo=null; } } } function CallBackFunction() { alert("PollCallBack"); } // test(); // test.Clear(); var objPoll = new cPoll("objPoll"); </script> </head> <body> <h1>Test</h1> <input type="Button" value="Start polling" onclick="objPoll.Start(CallBackFunction,3000);" /> <input type="Button" value="Stop polling" onclick="objPoll.Stop();" /> </body> </html>

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  • Spring validation errors not displayed

    - by Art Vandelay
    I have the following situation. I have a validator to validate my command object and set the errors on a Errors object to be displayed in my form. The validator is invoked as expected and works okay, but the errors i set on the Errors objects are not displayed, when i am sent back to my form because of the validation errors. Validator: public void validate(Object obj, Errors err) { MyCommand myCommand = (MyCommand) obj; int index = 0; for (Field field : myCommand.getFields()) { if (field.isChecked()) { if ((field.getValue() == null) || (field.getValue().equals(""))) { err.rejectValue("fields[" + index + "].value", "errors.missing"); } } index++; } if (myCommand.getLimit() < 0) { err.rejectValue("limit", "errors.invalid"); } } Command: public class MyCommand { private List<Field> fields; private int limit; //getters and setters } public class Field { private boolean checked; private String name; private String value; //getters and setters } Form: <form:form id="myForm" method="POST" action="${url}" commandName="myCommand"> <c:forEach items="${myCommand.fields}" var="field" varStatus="status"> <form:checkbox path="fields[${status.index}].checked" value="${field.checked}" /> <c:out value="${field.name}" /> <form:input path="fields[${status.index}].value" /> <form:errors path="fields[${status.index}].value" cssClass="error" /></td> <form:hidden path="fields[${status.index}].name" /> </c:forEach> <fmt:message key="label.limit" /> <form:input path="limit" /> <form:errors path="limit" cssClass="error" /> </form:form> Controller: @RequestMapping(value = REQ_MAPPING, method = RequestMethod.POST) public String onSubmit(Model model, MyCommand myCommand, BindingResult result) { // validate myCommandValidator.validate(myCommand, result); if (result.hasErrors()) { model.addAttribute("myCommand", myCommand); return VIEW; } // form is okay, do stuff and redirect } Could it be that the paths i give in the validator and tag are not correct? The validator validates a command object containing a list of objects, so that's why i give a index on the list in the command object when registering an error message (for example: "fields["+index+"]".value). Or is it that the Errors object containing the errors is not available to my view? Any help is welcome and appreciated, it might give me a hint or point me in right direction.

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  • Using XSLT, how do I separate nodes based on their value?

    - by Will Goring
    I have a pretty flat XML structure that I need to reorder into categorised sections and, for the life of me, I can't figure out how to do it in XSLT (not that I'm by any means an expert.) Basically, the original XML looks kinda like: <things> <thing> <value>one</value> <type>a</type> </thing> <thing> <value>two</value> <type>b</type> </thing> <thing> <value>thee</value> <type>b</type> </thing> <thing> <value>four</value> <type>a</type> </thing> <thing> <value>five</value> <type>d</type> </thing> </things> And I need to output something like: <data> <a-things> <a>one</a> <a>four</a> </a-things> <b-things> <b>two</b> <b>three</b> </b-things> <d-things> <d>five</d> </d-things> </data> Note that I can't output <c-things> if there aren't any <c> elements, but I do know ahead of time what the complete list of types is, and it's fairly short so handcoding templates for each type is definitely possible. It feels like I could probably hack something together using <xsl:if> and <xsl:for-each> but it also feels like there must be a more ... 'templatey' way to do it. Can anyone help? Cheers.

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  • How mature is apache sshd (MINA)?

    - by Yaneeve
    Has anyone ever used apache sshd (based on Apache MINA)? I would like to get some user input. Is it mature? Does it have (annoying) bugs? How is the API? Can useful documentation/tutorials be found? etc. Thanks all for your feedback.

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  • String Question. How to count the number of A,a, numeric and special char

    - by Brad
    I have randomly created strings such as H*P2[-%-3:5RW0j*;k52vedsSQ5{)ROkb]P/*DZTr*-UX4sp What I want to do is get a count of all Caps, lower case, numeric and special characters in each string as they are generated. I am looking for an output similar to Caps = 5 Lower = 3 numneric = 6 Special = 4 Fictitious values of course. I have gone through the php string pages using count_char, substr_count etc but cant find what I am looking for. Thank you

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  • How to do a join of 3 files with awk by first Column?

    - by noinflection
    i have three similar files, they are all like this: ID1 Value1a ID2 Value2a . . . IDN Value2n and i want an output like this ID1 Value1a Value1b Value1c ID2 Value2a Value2b Value2c ..... IDN ValueNa ValueNb ValueNc Looking to the first line i want value1A to be the value of id1 in fileA, value1B the value of id1 in fileB, etc, i think of it like a nice sql join. I've tried several things but none of them where even close.

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  • PyYAML parse into arbitary object

    - by Philip Fourie
    I have the following Python 2.6 program and YAML definition (using PyYAML): import yaml x = yaml.load( """ product: name : 'Product X' sku : 123 features : - size : '10x30cm' weight : '10kg' """ ) print type(x) print x Which results in the following output: <type 'dict'> {'product': {'sku': 123, 'name': 'Product X', 'features': [{'weight': '10kg', 'size': '10x30cm'}]}} It is possible to create a strongly typed object from x? I would like to the following: print x.features(0).size I am aware that it is possible to create and instance from an existent class, but that is not what I want for this particular scenario.

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  • Display the form again ?

    - by noralain
    Hi all, I want to ask about the form in javascript .. I want to do a game that the user enter the correct word, then alert message will apeared for correct word.. When the user do the first word correctly, the program will display another word (to be corrected) .. but the problem which i faced that i can't make the form display again to continue play the game .. i used : var d = document.getElementById("form1"); d.style.visibility = "visible"; but it doesn't work !! This is my code: <title>Word Decoder</title> <script type="text/javascript"> function checkWord(word, score){ var ok = words[score].valueOf(); var ok1 = document.getElementById("wordid"); if(ok1.value == ok){ score ++; alert("Correct, your score is: " + score); var d = document.getElementById("form1"); d.style.visibility = "visible"; return false; } else { alert("Wrong Spelling"); return false; } } </script> </head> <body> <script type="text/javascript"> var words = new Array ("apple", "orange", "banana", "manago", "table"); var reWords = new Array ("alpep", "ergano", "aaabnn", "goamna", "lbeat"); var count = 0; var score = 0; "</br>"; </script> <form id="form1"> <br> <dir id="displayForm" style="position: relative; visibility: visible; display: block"> <h3><b> <script> document.write(reWords[score]);</script> </b></h3> <br> Enter the correct word: <input type="text" value="" id="wordid"/> <input type="submit" value="Check Answer ??" onclick="return checkWord(wordid, score);" /> </dir> </form> </body> Can help me to solve the problem? Again: I want the game will display a scrambled word and the user must unscrambled the word to move to the other word. The problem is i can't display the form again to make the user unscrambled the second, third ..etc words..

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  • asp.net mvc mixed validation

    - by maxxxee
    Can I use IDataError and service layer validation together? I am using IDataError for my my model. However, I need to check for a condition in my service layer. If the condition is not true I need to give the user a validation message so that user can input new values. Is this possible? Anything I need to take care of when attempting this?

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  • white in the black

    - by gcc
    how can i detect white image surrounded by black image take input 000 000 000 000 000 255 255 255 000 000 255 255 255 000 000 255 255 255 000 000 000 000 000 000 000 make it simpliest form 0 0 0 0 0 2 2 2 0 0 2 2 2 0 0 2 2 2 0 0 that step i couldnot did then search for coordinate of leading entry x,y then determine are there any detection if not print no detection else go another step find length of the square and how can calculate length and widht of the square

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