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• PHP - Resize an image and fill gaps of proportions with a color

  - by Kerry

  I am uploading logos to my system, and they need to fix in a 60x60 pixel box. I have all the code to resize it proportionately, and that's not a problem. My 454x292px image becomes 60x38. The thing is, I need the picture to be 60x60, meaning I want to pad the top and bottom with white each (I can fill the rectangle with the color). The theory is I create a white rectangle, 60x60, then I copy the image and resize it to 60x38 and put it in my white rectangle, starting 11px from the top (which adds up to the 22px of total padding that I need. I would post my code but it's decently long, though I can if requested. Does anyone know how to do this or can you point me to code/tutorial that does this?

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• DataSet.HasChanges is true even immediately after TableAdapter.Update is run

  - by Nathan Koop

  I've got some legacy dataset code which I'm updating. I'm attempting to determine if the dataset has changes to it so I can properly prompt for a save request. However myDataset.HasChanges() always returns true. In my save method I've edited the code to determine when the dataset get's changes and made the code like this: 1. myBindingSource.EndEdit() 2. myTableAdapter.Update(myDataSet) 3. myBindingSource.EndEdit() After line 1, - myDataSet.HasChanges = true (understandable) After line 2, - myDataSet.HasChanges = false (understandable) After line 3, - myDataSet.HasChanges = true I'm unsure of why this would occur in line 3, shouldn't this be false because I just ran the updates on the dataset?

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• Using ModalAlert from cookbook - app does not load

  - by user127091

  I'm using iphone cookbook code to prompt a user for text in a UIAlertView. The cookbook code is available at http://github.com/erica/iphone-3.0-cookbook-/tree/master/C10-Alerts/03-Soliciting%20Text/ In my AppDelegate, applicationDidFinishLaunching(), I invoke as below NSString *str = [ModalAlert ask:@"what is your name?" withTextPrompt:@"ATTUID"]; But my app does not finish loading at all. I get a black screen indefinitely. There are no messages in the console. I tried creating just a UIAlertView with UITextField in the above function and it displays properly. (commenting out her code) Commenting out "CFRunLoopRun()" also loads the app. I'm probably doing something stupid but can't seem to figure it out.

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• how to deal with a static analyzer output

  - by Jim

  We have started using a static analyzer (Coverity) on our code base. We were promptly stupefied by the sheer amount of warnings we received (its in the hundreds of thousands) , it will take the entire team a few mounts to clear them all (obliviously impossible). the options we discussed so far are 1) hire a contractor to sort out the warning and fix them - he drawback: we will probably need very experiences people to do all these modifications, and no contractor will have required understanding of the code. 2) filter out the warning and deal only with the dangerous ones - the problem here is that our static analysis output will always be cluttered by warning making it difficult for us to isolate problems. also the filtering of the warning is also a major effort. either way, bringing our code to a state when the static analyzer can be a useful tool for us seems a monumental task. so how is it possible to work with the static analyzer without braining current development efforts into a complete stand still?

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• how to display a image in java application

  - by Nubkadiya

  i want to display a image in my java application. i found a code to download the image from the webserver. what that code do is it takes the image and show it in the jframe. i want to use a label to show the image or soemthing else. so i can put it in my java application. can someone help me. it shouldnt be JFrame please help me here is my code Image image = null; try { URL url = new URL("http://www.personal.psu.edu/acr117/blogs/audrey/images/image-2.jpg"); image = ImageIO.read(url); } catch (IOException e) { } // Use a label to display the image JFrame frame = new JFrame(); JLabel lblimage = new JLabel(new ImageIcon(image)); frame.getContentPane().add(lblimage, BorderLayout.CENTER); frame.setSize(300, 400); frame.setVisible(true); } can someone help me

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• Visual Studio add-in for performance benchmarking

  - by chiccodoro

  I'd like to measure the performance of some code blocks in my c# winforms application. In particular I want to measure performance regression/improvement after some restructuring of the code. So long I've seen the System.Diagnostics.Stopwatch. However, I want to avoid writing measuring code into my classes, I would rather prefer to separate measuring from actual code. As for debugging, you can set breakpoints on several code lines and "jump" from one to the next by "Continue Execution", I imagine something similar for measuring: Mark to lines of code and make Visual Studio display the time elapsing from one to the next. Is there any feature/add-in in that direction?

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• libriaries on Android

  - by Will

  In native development, you can produce libraries - .so, .dll etc - that other libraries and programs can share. In Java, you can put your code in a JAR in the classpath and other programs and libraries can use it. So how can you do modular programs in Android? I get the impression from the documentation that each APK is a self-contained island. Can different APKs share code? And how does installation work when you have these external dependencies? Can you specify that you rely on library that is not in your APK and get it installed too? If you can't have 'dynamic linking', can you have 'static linking' by developing your shared code and somehow putting the equiv of a JAR into each APK that requires it?

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• converting a treebank of vertical trees to s-expressions

  - by Andreas

  I need to preprocess a treebank corpus of sentences with parse trees. The input format is a vertical representation of trees, like so: S =NP ==(DT +def) the == (N +ani) man =VP ==V walks ...and I need it like: (S (NP (DT the) (N man)) (VP (V walks))) I have code that almost does it, but not quite. There's always a missing paren somewhere. Should I use a proper parser, maybe a CFG? The current code is at http://github.com/andreasvc/eodop/blob/master/arbobanko.py The code also contains real examples from the treebank.

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• SFML 2.0 crashes anytime a method is called

  - by Ken

  This code generates an exception: #include <SFML/Graphics.hpp> #include <SFML/Window.hpp> #include <SFML/System.hpp> int main() { sf::Clock clock; clock.getElapsedTime(); return 0; } However, this doesn't crash: #include <SFML/Graphics.hpp> #include <SFML/Window.hpp> #include <SFML/System.hpp> int main() { sf::Clock clock; return 0; } I'm using SFML 2.0, Windows 7, MinGW 4.70 (Code::Blocks). I don't know why, I followed all instructions to link the libraries and nothing seems to be working. I might be missing something simple through my anger (I've been trying to run sample code for a week, nothing has been working), so can anybody throw me a bone?

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• My Thread Programs Crash

  - by zp26

  I have a problem with threads objectiveC. The line of code below contains the recv block the program waiting for a datum. My intention is to launch a thread parallel to the program so that this statement does not block any application. I put this code in my program but when active switch the program crashes. Enter the code. -(IBAction)Chat{ if(switchChat.on){ buttonInvio.enabled = TRUE; fieldInvio.enabled = TRUE; [NSThread detachNewThreadSelector:@selector(riceviDatiServer) toTarget:self withObject:nil]; } else { buttonInvio.enabled = FALSE; fieldInvio.enabled = FALSE; } -(void)riceviDatiServer{ NSAutoreleasePool *pool = [[NSAutoreleasePool alloc]init]; int ricevuti; NSString *datiRicevuti; ricevuti = recv(temp, &datiRicevuti, datiRicevuti.length, 0); labelRicezione.text = [[NSString alloc] initWithFormat:@"%s.... %d", datiRicevuti, ricevuti]; [pool release]; }

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• Convert char array to UNICODE in MFC C++

  - by chathuradd

  I'm using the folowing code to read files from a folder in windows. However since this a MFC application I have to convert the char array to UNICODE. For example if I hard code the path as "C:\images3\test\" as shown below the code works. WIN32_FIND_DATA FindFileData; HANDLE hFind = INVALID_HANDLE_VALUE; hFind = FindFirstFile(_T("C:\images3\test\"), &FindFileData); What I want is to get this working as follows: char* pathOfFileType; hFind = FindFirstFile(_T(pathOfFileType), &FindFileData); Can anyone tell me how to fix this problem ? Thanks

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• How to read in a negative double with scanf() in C

  - by rize

  I'm learning basics of C and writing a simple first order equation solver. I want the input to be exactly ax+b=c or ax-b=c, where a, b, c are double type. I'm employing scanf() to read in user input and to check if it's of the correct form. However, if I enter a negative double, -4.6 say, as the "a" in the equation, scanf() won't read the a,b,c correctly. I'm using %lf inside scanf(). How do I read a negative double, then? Many thanks. My code: if (scanf("%lfx+%lf=%lf", &a, &b, &c)) more code If I use as the input "-6.2x+3.4=-5.9", the value 3.4 will be assinged to variable a, while b and c remain as they were and "more code" is run.

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• PHP Escaping from HTML, faster, cleanner?!

  - by rno

  I've read about it from the php website (http://us3.php.net/manual/en/language.basic-syntax.phpmode.php) Using: echo "<html tag>" is slower and also annoying because you got to escape char like " with \" But what's about using $output = <<< EOF <html code> EOF; Then later on in the code I can use $output .= <<< EOF <some more html code> EOF; then when I want to print it: echo "$output"; I think it's a great idea, but really wonder what you PHP guru think about it. Cheers, rno

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• Difference between static const char* and const char*.

  - by Will MacDonagh

  Could someone please explain the difference in how the 2 snippets of code are handled below? They definitely compile to different assembly code, but I'm trying to understand how the code might act differently. I understand that string literals are thrown into read only memory and are effectively static, but how does that differ from the explicit static below? struct Obj1 { void Foo() { const char* str( "hello" ); } }; and struct Obj2 { void Bar() { static const char* str( "hello" ); } };

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• Programming Definitions: What exactly is 'Building'.

  - by contactmatt

  What does it mean to BUILD a solution/project/program? I want to make sure I have my definitions correct (so I don't sound like a idiot when conversing). In IDE's, you can (correct me if I'm wrong) compile source-code/programming-code into computer-readable machine code. You can debug a program, which is basically stepping through the program and looking for errors. But what exactly doe's building a program do? In VS im aware that when you build a program it produces a executable file in a debug folder. Any hard-core tech definitions of what it means to BUILD a program?

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• How do I configure emacs for editing HTML files that contain Javascript?

  - by MakeDummy

  I have started the painful first steps of using emacs to edit an HTML file with both HTML tags and javascript content. I have installed nxhtml and tried using it - i.e set up to use nxhtml-mumamo-mode for .html files. But I am not loving it. When I am editing the Javascript portion of the code the tab indents do not behave as they do when editing C/C++ code. It starts putting tabs within the line and if you try and hit tab in the white space preceding a line it inserts the tab rather than re-tabifying the line. Another aspect that I don't like is that it doesn't do syntax colouring like the usual C/C++ modes do. I much prefer the behaviour of the default java-mode when editing HTML files but that doesn't play nicely with the HTML code. :-( 1) Is there a better mode for editing HTML files with Javascript portions? 2) Is there a way to get nxhtml to use the default java-mode for the javascript portions? Regards, M

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• About the fix for the interference between Company mode and Yasnippet

  - by janoChen

  Emacs wiki says: Company does interfere with Yasnippet’s native behaviour. Here’s a quick fix: http://gist.github.com/265010 The code is the following: (define-key company-active-map "\t" 'company-yasnippet-or-completion) (defun company-yasnippet-or-completion () (interactive) (if (yas/expansion-at-point) (progn (company-abort) (yas/expand)) (company-complete-common))) (defun yas/expansion-at-point () "Tested with v0.6.1. Extracted from `yas/expand-1'" (first (yas/current-key))) I placed that code in my .emacs and the following message appeared: Warning (initialization): An error occurred while loading `c:/Documents and Settings/Alex.AUTOINSTALL.001/Application Data/.emacs.elc': Symbol's value as variable is void: company-active-map To ensure normal operation, you should investigate and remove the cause of the error in your initialization file. Start Emacs with the `--debug-init' option to view a complete error backtrace. Do I have to place the fix code inside a YASnippet's .el file? or in my .emacs (which throws me an error)?

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• Generating Mouse-Keyboard combination events in python

  - by freakazo

  I want to be able to do a combination of keypresses and mouseclicks simultaneously, as in for example Control+LeftClick At the moment I am able to do Control and then a left click with the following code: import win32com, win32api, win32con def CopyBox( x, y): time.sleep(.2) wsh = win32com.client.Dispatch("WScript.Shell") wsh.SendKeys("^") win32api.SetCursorPos((x,y)) win32api.mouse_event(win32con.MOUSEEVENTF_LEFTDOWN, x, y, 0, 0) win32api.mouse_event(win32con.MOUSEEVENTF_LEFTUP, x, y, 0, 0) What this does is press control on the keyboard, then it clicks. I need it to keep the controll pressed longer and return while it's still pressed to continue running the code. Is there a maybe lower level way of saying press the key and then later in the code tell it to lift up the key such as like what the mouse is doing?

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• java.awt.HeadlessException thrown from HeadlessGraphicsEnvironment.getDefaultScreenDevice

  - by Omry

  I need to do some image processing on a java server (Debian with java version "1.6.0_12"), and I am receiving java.awt.HeadlessException from my code: java.awt.HeadlessException at sun.java2d.HeadlessGraphicsEnvironment.getDefaultScreenDevice(HeadlessGraphicsEnvironment.java:64) at WaxOn.getDefaultConfiguration(WaxOn.java:341) Even when java.awt.headless is set to true (as evident by this code printing so): if (!java.awt.GraphicsEnvironment.isHeadless()) { logger.warn("Headless mode is not enabled"); } else { logger.info("Headless mode"); } This is the code that throws the exception: public static GraphicsConfiguration getDefaultConfiguration() { GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); GraphicsDevice gd = ge.getDefaultScreenDevice(); return gd.getDefaultConfiguration(); } Any idea how to solve this?

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• Thoughts on try-catch blocks

  - by John Boker

  What are your thoughts on code that looks like this: public void doSomething() { try { // actual code goes here } catch (Exception ex) { throw; } } The problem I see is the actual error is not handled, just throwing the exception in a different place. I find it more difficult to debug because i don't get a line number where the actual problem is. So my question is why would this be good? ---- EDIT ---- From the answers it looks like most people are saying it's pointless to do this with no custom or specific exceptions being caught. That's what i wanted comments on, when no specific exception is being caught. I can see the point of actually doing something with a caught exception, just not the way this code is.

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• Why avoid pessimistic locking in a version control system?

  - by raven

  Based on a few posts I've read concerning version control, it seems people think pessimistic locking in a version control system is a bad thing. Why? I understand that it prevents one developer from submitting a change while another has the file checked out, but so what? If your code files are so big that you constantly have more than one person working on them at the same time, I submit that you should reorganize your code. Break it up into smaller functional units. Integration of concurrent code changes is a tedious and error-prone process even with the tools a good version control system provides to make it easier. I think it should be avoided if at all possible. So, why is pessimistic locking discouraged?

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• How to get current directory in C# for any Windows version?

  - by DarthRoman

  I am creating an application that can be executed in any windows version, even in mobile's, and I am trying to get the current directory of the executable. The problem is that if I use the following code, it doesn't compile in Windows Mobile: string currentDirectory = System.IO.Path.GetDirectoryName(System.Windows.Forms.Application.ExecutablePath); And if I use this code, I receive something like: file:\C:\xxx string currentDirectory = System.IO.Path.GetDirectoryName(System.Windows.Forms.Application.ExecutablePath); Although, I need to get the root drive, and this code doesn't compile in Windows Mobile: String rootPath = Path.GetPathRoot(Environment.SystemDirectory); Does anyone know how to get the current directory of the application and the root path for any windows version, even mobile's?

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• How Do I get the current instance from an AppDomain?

  - by Spanners

  Hi, I use the default appdomain (AD) which I use to create new appdomains (AD1) when required for running plugins in isolation. When creating the new domain I also wire up the AppDomainUnload event to allow me to call clean up code etc. The issue I seem to have is: 1) Create AD1 from AD 2) Run code in AD1 3) Call AD.Unload(AD1) The code switches to AD1 and calls the unloading event passing in a reference to the current AppDomain (AD1). At this point I'd like to get a reference to the current instance running in AD1 to call a shutdown method however there is no GetInstance on the AppDomain class. Any ideas how I can go about getting it?

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• How can I create a qr// in Perl 5.12 from C?

  - by kristina

  This has been working for me in 5.8 and 5.10, but in 5.12 my code creates this weird non-qr object: # running "print Dumper($regex)" $VAR1 = bless( do{\(my $o = '')}, 'Regexp' ); Whereas printing a qr// not created by my code looks like this: # running "print Dumper(qr/foo/i)" $VAR1 = qr/(?i-xsm:foo)/; My code is basically: REGEXP *rx = re_compile(pattern, flags); SV *regex = sv_2mortal(newSVpv("",0)); sv_magic(regex, (SV*)rx, PERL_MAGIC_qr, 0, 0); stash = gv_stashpv("Regexp", 0); sv_bless(newRV((SV*)regex), stash); Anyone know how to correctly create a regex from a string in 5.12?

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• Need help with htacess - over and over

  - by Holian

  Hello! I have this lines in my .htacess Options +FollowSymLinks RewriteEngine on RewriteCond %{HTTP_HOST} ^mydomain.org [NC] RewriteRule ^(.*)$ http://www.mydomain.org/$1 [L,R=301] # index.php to / RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /.*index\.php\ HTTP/ RewriteRule ^(.*)index\.php$ /$1 [R=301,L] # forum RewriteCond %{REQUEST_URI} !^/forums/ RewriteRule index.php/(.*) http://forum.mydomain.org/$1 [R=301,L] This code is works well, but i dont know if the code is standard. I would like to set htaccess to: mydomain.org go to www.mydomain.org (its ok..) mydomain.org/index.php go to www.mydomain.org (its ok..) forum.mydomain.org stay forum.mydomain.org (its ok..? ) www.forum.mydomain.org go to forum.mydomain.org (how?) Could anyone help me to fix this code? Thank you.

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