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  • What is this hacker trying to do?

    - by JW
    If you do a search for: http://www.google.co.uk/search?q=0x57414954464F522044454C4159202730303A30303A313527&hl=en&start=30&sa=N you will see a lot of examples of an attempted hack along the lines of: 1) declare @q varchar(8000) select @q = 0x57414954464F522044454C4159202730303A30303A313527 exec(@q) -- What is exactly is it trying to do? Which db is it trying to work on? Do you know of any advisories about this?

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  • [C#] Develop a HTTP Monitor

    - by Tony
    Hi I'd like to develop an application to monitor HTTP traffic to/from my PC. (what websites are being visited by the PC user). The problem is, that I couldn't get any articles how to start developing application like that. Any help ?

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  • GTK+ widgets/windows being (randomly) corrupted, with what seems to be timers.

    - by nubela
    Hi, I have recently implemented a scrolling text across an area of limited screen estate using a timers repeating every 100ms, and some simple string appending. However, after this very implementation, I have come to realise that my GUI is getting randomly bugged/corrupted after a certain while. That is to say that some widgets/windows become completely white, and eventually the entire GUI turns white and unclickable. What is weird is that there is no error debug output at all. Having said that, I am using Mono with GTK-Sharp for the application. Does anyone have an idea or a possible clue how and why this is happening? If not, how can I further debug this properly? Thanks, really appreciate it. PS: Sometimes, it takes up to 1.5 hours for the thing to start corrupting, it has random timeframes for it to start happening. This is my the code implemented that caused this issue: void ScrollSyncTo(object sender, System.Timers.ElapsedEventArgs e) { //initial check if it fits nicely alr if (sync_to_full_txt.Length <= sync_to_max_char) { sync_to_timer.Stop(); return; } //check for pause if (sync_to_pause >= 0) { sync_to_pause--; return; } //check direction int temp_psn; string temp_str; if (sync_to_direction) { temp_psn = sync_to_posn + 1; if (sync_to_full_txt.Substring(temp_psn).Length < sync_to_max_char) { sync_to_pause = sync_to_break_steps; sync_to_direction = false; sync_to_posn = sync_to_full_txt.Length - 1; System.GC.Collect(); return; } else { temp_str = sync_to_full_txt.Substring(temp_psn, sync_to_max_char); } } else { temp_psn = sync_to_posn - 1; if (temp_psn + 1 < sync_to_max_char) { sync_to_pause = sync_to_break_steps; sync_to_direction = true; sync_to_posn = 0; System.GC.Collect(); return; } else { temp_str = sync_to_full_txt.Substring(temp_psn - sync_to_max_char + 1, sync_to_max_char); } } //lets move it sync_to.Text = temp_str; sync_to_posn = temp_psn; }

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  • What is some good software for designing MySQL databases?

    - by franzferdinand
    As above. Usually at work someone else does the database design, and when I do personal projects they're small enough to not really require more than five or six tables, but I'm about to start a personal project that I think will probably require around eleven or twelve tables and I'd like something to help me design it neatly and keep track of it.

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  • What does "the application failed to initialize properly" mean?

    - by Mason Wheeler
    I just got a bug report from someone running an app I wrote under Windows XP. He says it won't start up. The application failed to initialize properly (0xc0150002). Click on OK to terminate the application. It works fine at my end, (under Windows 7,) and I don't have any Win7- or Vista-specific stuff in the program, so it should work on XP too. How do I go about tracking this down and debugging it?

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  • Why does the Ternary\Conditional operator seem significantly faster

    - by Jodrell
    Following on from this question, which I have partially answered. I compile this console app in x64 Release Mode, with optimizations on, and run it from the command line without a debugger attached. using System; using System.Diagnostics; class Program { static void Main() { var stopwatch = new Stopwatch(); var ternary = Looper(10, Ternary); var normal = Looper(10, Normal); if (ternary != normal) { throw new Exception(); } stopwatch.Start(); ternary = Looper(10000000, Ternary); stopWatch.Stop(); Console.WriteLine( "Ternary took {0}ms", stopwatch.ElapsedMilliseconds); stopwatch.Start(); normal = Looper(10000000, Normal); stopWatch.Stop(); Console.WriteLine( "Normal took {0}ms", stopwatch.ElapsedMilliseconds); if (ternary != normal) { throw new Exception(); } Console.ReadKey(); } static int Looper(int iterations, Func<bool, int, int> operation) { var result = 0; for (int i = 0; i < iterations; i++) { var condition = result % 11 == 4; var value = ((i * 11) / 3) % 5; result = operation(condition, value); } return result; } static int Ternary(bool condition, in value) { return value + (condition ? 2 : 1); } static int Normal(int iterations) { if (condition) { return = 2 + value; } return = 1 + value; } } I don't get any exceptions and the output to the console is somthing close to, Ternary took 107ms Normal took 230ms When I break down the CIL for the two logical functions I get this, ... Ternary ... { : ldarg.1 // push second arg : ldarg.0 // push first arg : brtrue.s T // if first arg is true jump to T : ldc.i4.1 // push int32(1) : br.s F // jump to F T: ldc.i4.2 // push int32(2) F: add // add either 1 or 2 to second arg : ret // return result } ... Normal ... { : ldarg.0 // push first arg : brfalse.s F // if first arg is false jump to F : ldc.i4.2 // push int32(2) : ldarg.1 // push second arg : add // add second arg to 2 : ret // return result F: ldc.i4.1 // push int32(1) : ldarg.1 // push second arg : add // add second arg to 1 : ret // return result } Whilst the Ternary CIL is a little shorter, it seems to me that the execution path through the CIL for either function takes 3 loads and 1 or 2 jumps and a return. Why does the Ternary function appear to be twice as fast. I underdtand that, in practice, they are both very quick and indeed, quich enough but, I would like to understand the discrepancy.

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  • ruby inject recursion?

    - by Matt Humphrey
    the goal is to start with ['a','b','c'] and end up with {'a'={'b'={'c'={}}}} so, getting my bearings, i did this: ruby-1.8.7-p174 ['a','b','c'].inject({}){|h,v| h.update(v = {})} = {"a"={}, "b"={}, "c"={}} and then figured, if i actually pass on the result hash, it will recurse and nest, but: ruby-1.8.7-p174 ['a','b','c'].inject({}){|h,v| h.update(v = {}); h[v]} = {} why is this? any idea how to achieve the desired result in an elegant one-liner?

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  • Lua + SWIG Monkey Patching

    - by Tom J Nowell
    I have used SWIG to bind a set of classes to lua. The problem comes if I want to start monkey patching. e.g. game.GetEnemies1 = game.GetEnemies2 does not work as expected. The behaviour after that line is still consistent with the original GetEnemies1 not GetEnemies2. how do I combat this problem?

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  • Does Visual Studio 2010 Beta 2 Include a TFS server?

    - by Russell
    I recently downloaded Visual Studio 2010 beta 2, and was told it included a TFS server. However I am unsure of if it has/can be installed, or how to start it up if it has been. Can anyone shed any light on this for me please? Thanks :) Thanks for your help :) I am downloading the ISO of the separate product instead from msdn.

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  • MP3 codec for WAV files

    - by Don Reba
    Wav files support different encodings, including mp3. Is there a C/C++ library that would produce mp3-encoded wav files from uncompressed wav? If not, what would be the best place to start to implement one?

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  • How to do an alphnumeric sort in R

    - by cbare
    Is there an alphanumeric sort for R? Say I had a character vector like so: > seq.names <- c('abc21', 'abc2', 'abc1', 'abc01', 'abc4', 'abc201', '1b', '1a') I'd like to sort it aphanumerically, so I get back this: c('1a', '1b', 'abc1', 'abc01', 'abc2', 'abc4', 'abc21', 'abc201') Does this exist somewhere, or should I start coding? Thanks, -chris

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  • Change certain values within method

    - by Grant Wilkinson
    I have the following code with a bool if statement inside and in another method I change the value of the bool and i know i need to recall the method [self someMethod]; but I just want to reflect the changes in the if statement and not recall everything else again, how do i do this? thanks -(void)someMethod { //start my code here if (boolvalueisTrue) { //change this part only } } -(void)changeBool { boolvalueisTrue = TRUE; [self someMethod]; //instead of calling the whole method i just want to reflect //the changes inside my if statement }

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  • In jquery how can I keep track of multiple ajax request called from one function

    - by binay
    I'm using jquery and in one function I'm calling multiple function which are doing different ajax request for example function contactForm(){ loadCountryList(); loadMyData(); checkUserType(); // doing my stuff } How can I know if all the ajax request are completed so that I start doing my stuff in the end? I don't want to call them one by one to minimize the request time. any suggestion will help me a lot.

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  • How do I create an empty Django formset using modelformset_factory?

    - by nbolton
    I'm creating a formset, but it seems to populate it with all of the existing data in the table for that object. I can't figure out how to start with a blank formset; the only way seems to be to delete all of the data from the table, but clearly this isn't an option. I will post code if necessary (but there's lots of it, so knowing what is relevant is tricky).

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