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  • Access USB devices through Delphi in Windows XP standard

    - by Lex Dean
    I'm into pis18f's and Delphi Support out their is for everything but Delphi from my point of view as a hobbyist and many like me Delphi connecting to a pic's has many advantages I write in Mikro Pascal I'm fully familiar with MSDN and connecting to windows The small/medium programs out their made in Delphi is enormous think what that can do for pics. This project needs to me written to connect to old windows XP in kernel mode I think and not SP2 or SP3 dependent as thats all you can buy now. I would like it to be a Delphi DCU file for delphi simplisity But I expect some how it to be a DLL in the end. Can any one out their help me with any advice please Email:- lexdeanair At hotmail.com

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  • Do I need to syncronize thread access to an int

    - by Martin Harris
    I've just written a method that is called by multiple threads simultaneously and I need to keep track of when all the threads have completed, the code uses this pattern: private void RunReport() { _reportsRunning++; try { //code to run the report } finally { _reportsRunning--; } } This is the only place within the code that _reportsRunning's value is changed, and the method takes about a second to run. Occasionally when I have more than six or so threads running reports together the final result for _reportsRunning can get down to -1, if I wrap the calls to _runningReports++ and _runningReports-- in a lock then the behaviour appears to be correct and consistant. So, to the question: When I was learning multithreading in C++ I was taught that you didn't need to synchronize calls to increment and decrement operations because they were always one assembly instruction and therefore it was impossible for the thread to be switched out mid-call. Was I taught correctly, and if so how come that doesn't hold true for C#?

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  • windows service cannot access a webservice

    - by Tony
    Hi We have two servers, both are containing a local application connecting to local web service, applications and services are identical on both servers. One of the servers work just fine, The other one is just dead, I have impression the the security configuration are different on those servers. What prevents an application X from connecting a web-service, given that another application y on the same server can connect to it. and X is a windows service. What I should check, what is chances? Thanks

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  • Django limit access by group only

    - by Mike
    I only you can limit what a user can do via the user permissions in admin.. But is there a way to limit them in admin via what group you add them to? I want to allow a certain group to do everything in that model if they belong to a certain group thanks!

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  • Access static Method in GDB

    - by Besi
    I recently discovered the GDB in Xcode which makes up for some functionality which IMHO seems to be lacking in Xcode. So I can do the following in GDB: (gdb) po [LoginManager sharedSession].loginToken 20D52FE9-3573-437E-9A65-846572B63726 However, I have another Service class, which is currently not loaded so I get the following error: (gdb) po [SessionService displaySessionInfoForToken:@"XXX"] No symbol "SessionService" in current context. I don't understand why the LoginManager can be loaded but not the SessionService.

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  • Best way to delay access to static web pages until services become available with J2EE

    - by Dean Povey
    I have a J2EE application front-ended by a bunch of GWT pages. When the server is starting up, it is possible that these static pages can be accessed before the services required to implement the GWT RPC calls (database etc) are available. I wondering what the best approach is to prevent a user accessing this static content before these services become available. For the purpose of this exercise, assume that there is an isInitialized() method somewhere. I am happy with either a page displaying an error message or simply refusing the connection.

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  • FTP cannot access virtual folder

    - by user88746
    I've created a virtual folder for a folder residing at C:\Documents and Settings\..\Data Remote users are able to see the base folder of the FTP site, but are unable to see the Virtual folder. Is sharing a folder in the path forbidden? -zeekial

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  • Access variable value using string representing variable's name

    - by Paul Ridgway
    Hello everyone, If the title was not clear, I will try to clarify what I am asking: Imagine I have a variable called counter, I know I can see its current value by doing something like: std::cout << counter << std::endl; However, assume I have lots of variables and I don't know which I'm going to want to look at until runtime. Does anyone know a way I can fetch the value of a variable by using its name, for example: std::cout << valueOf("counter") << std::endl; I feel being able to do this might make debugging large complex projects easier. Thanks in advance for your time.

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  • IllegalAccessError: cross-loader access from pre-verifed class in MapActivity

    - by flipper83
    I have a big problem. When I lauch my MapActivity this launch the ilegal argument. I think that i check all 1) add map.jar from api 3 to eclipse 2) I obtain a api key 3) In androidmanifest I have putted the uses-library and te internet permision 4) I launch the google api emulator for api 3. 5) I dont know that i can try. Please, any idea? this can't be too dificult, I can't belive. Sure that it is a stupid thing :S

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  • How to access the next element and check if it has a particular class

    - by NaN
    I need to call a function based on whether the second following td element has a certain class. Here is the HTML <tr id="939"> <td data-id="939">Test2</td> <td class="hold" data-id="939"></td> </tr> <tr id="938"> <td data-id="938">Test1</td> <td class="someotherclass" data-id="938"></td> </tr> Here is the JQuery function $('body').on('click', '#article td:first-child', function(e){ // I need to check the next td for the hold class if($(this).next().hasClass(".hold")){ // Call my function } }); How do I do this? I've tried using next and closest but that yields nothing.

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  • Efficient way to access a mapping of identifiers in Python

    - by sixbelo
    I am writing an app to do a file conversion and part of that is replacing old account numbers with a new account numbers. Right now I have a CSV file mapping the old and new account numbers with around 30K records. I read this in and store it as dict and when writing the new file grab the new account from the dict by key. My question is what is the best way to do this if the CSV file increases to 100K+ records? Would it be more efficient to convert the account mappings from a CSV to a sqlite database rather than storing them as a dict in memory?

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  • Can't access form elements

    - by linkcool
    Hi, my problem is that my variables are not working in javascript. all variables need names without some character at the beginning, this is the stupid thing...Anyways, im trying to make a funtion that makes "select all checkboxes". It is not working so i looked at the page source/info and found out that the variables were not changing. this is my input: echo "<input onclick='checkAll(1);' type='checkbox' name='master'/><br/>"; My function: function checkAll(i) { for(var i=1; i < <?php echo $num; ?>; i++) { if(document.demo.master[i].checked == true) { document.demo.message[i].checked = true; } else { document.demo.message[i].checked = false; } } } so yes that's it. I can tell you that i also tried without the <i> in: checkAll("i") Thanks for the help. EDIT: each checkbox for each messsage has this code:echo "<input style='margin-left:-15px;margin-top:20px;' type='checkbox' name='message' value='$rid' /><br/>";

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  • jQuery ajax.load div, then have parent container access property

    - by Brett
    So I have a tabbed ui "form", each tab is quiet complicated so it is loaded via the .load('item.html'); command. All good, when the user clicks to a different tab, I want to read a property, maybe execute a function from within the ajax loaded div. What is the best way to get to these properties and methods from outsite the ajax loaded div?

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  • Can not connect to SSIS access denied

    - by Pramodtech
    I am facing an issue while connecting to SSIS thru Mangament studio. I'm able to connect to SQL engine, Analysis services but not able to connect to SSIS. I use windows authentication. I tried steps given at http://msdn.microsoft.com/en-us/library/aa337083(SQL.90).aspx but no help. On one of the forum I saw that one needs to restart the MSDTC service, Do I need to do that? bcoz my SQL admin said I need to justify it by assuring that it doesn't affect aything else. Moreover we didn't find way to restart the service, where I can do that? please help. Thanks.

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  • Boost Shared Pointer: Simultaneous Read Access Across Multiple Threads

    - by Nikhil
    I have a thread A which allocates memory and assigns it to a shared pointer. Then this thread spawns 3 other threads X, Y and Z and passes a copy of the shared pointer to each. When X, Y and Z go out of scope, the memory is freed. But is there a possibility that 2 threads X, Y go out of scope at the exact same point in time and there is a race condition on reference count so instead of decrementing it by 2, it only gets decremented once. So, now the reference count newer drops to 0, so there is a memory leak. Note that, X, Y and Z are only reading the memory. Not writing or resetting the shared pointer. To cut a long story short, can there be a race condition on the reference count and can that lead to memory leaks?

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  • C++ Access variable value using string representing variable's name

    - by Paul Ridgway
    Hello everyone, If the title was not clear, I will try to clarify what I am asking: Imagine I have a variable called counter, I know I can see its current value by doing something like: std::cout << counter << std::endl; However, assume I have lots of variables and I don't know which I'm going to want to look at until runtime. Does anyone know a way I can fetch the value of a variable by using its name, for example: std::cout << valueOf("counter") << std::endl; I feel being able to do this might make debugging large complex projects easier. Thanks in advance for your time. PS: Please do not respond with 'Google it', I have, though maybe not with the best query to get the answer I'm looking for...

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  • ArrayIndexOutOfBoundsException trying to access data

    - by Eggy
    I am getting an array index out of bounds exception in the following code: for (int i=1; i<11; i++) { int a[][] = new int[10][3]; double LeftTrim = 1.0; double RightTrim = 1.0; a [i][0]=(int) (LeftTrim*((i)*25)); a [i][1]=(int) (RightTrim*((i)*25)); a [i][2]= 5000; //leftWheel, rightWheel, Milliseconds myf.setWheelVelocities(a[i][0], a[i][1], a[i][2]); JOptionPane.showMessageDialog(null, + (a [i][0] + a [i][1])/2 + "wheel velocities" + " | " + a [i][2] + " Milliseconds" + " Click OK to continue..."); } Every-time I reach the 9th increment Eclipse gives me the error "Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 10" I have to test the velocity up to 250, but when I reach 225 and I click 'Ok' on 'Click ok to continue..." this error shows up! Am I going out of the array bounds or something? Thank you!

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  • Offline database access

    - by dtech
    I have a small application which basically consists of an user-friendly CRUD interface to a few tables (and joined tables) It currently works with a MySQL database but I would like to make it available offline. My first thought was to create a SQLite "buffer" in between the MySQL database and the application, e.g. by executing all queries on the SQLite but also storing them in a log table so that they can be executed later in the main database with very basic conflict resolution (I will basically let the user solve it if a conflict is detected) Due to the simplicity of the application this shouldn't be too difficult and good exercise, but I think I would be re-inventing the wheel. So my question is: are there existing solutions or other approaches for this problem?

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  • how to access a different movieclip within the flash in AS3

    - by Pieter888
    I've been trying to learn Action Script 3 the past few weeks, making tiny interactive games to learn the basics. I stumble upon a problem every now and then but most of the times google helps me out. But this problem has got me stuck so please help: The main stage contains two objects(movieclips), the player and a wall. The player has got his own code so when I drag in the player object I don't have to write any code into the main stage to be able to move the player. This all worked pretty well and I now wanted to add the wall so the player actually has something to bounce into. Now here is the problem, I want to check if the player touches the wall, I've done this before but that was when I used the main stage as my coding playground instead of putting the code in movieclips. How can I check if the player hits the wall within the movement code of the player object?

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  • How can i access the value of the moving slider in a jquery variable

    - by user1673591
    html <h1>HTML Slider Test</h1> <div class="slider" data-max="10"></div> <p>Your slider has a value of <span class="slider-value"></span></p> <div class="slider" data-max="100"></div> <p>Your slider has a value of <span class="slider-value"></span></p> jquery $(".slider").each(function() { $(this).slider({ value : 1, min : 1, max : $(this).data('max'), step : 1, slide : function (event, ui) { var a= $(this).next().find('span.slider-value').html(ui.value); } }); }); I want the value of the moving slider in a jquery variable

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