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  • Does binarywriter.flush() also flush the underlying filestream object?

    - by jacob sebastian
    I have got a code snippet as follows: Dim fstream = new filestream(some file here) dim bwriter = new binarywriter(fstream) while not end of file read from source file bwriter.write() bwriter.flush() end while The question I have is the following. When I call bwriter.flush() does it also flush the fstream object? Or should I have to explicitly call fstream.flush() such as given in the following example: while not end of file read from source file bwriter.write() bwriter.flush() fstream.flush() end while A few people suggested that I need to call fstream.flush() explicitly to make sure that the data is written to the disk (or the device). However, my testing shows that the data is written to the disk as soon as I call flush() method on the bwriter object. Can some one confirm this?

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  • JBoss Database Connection Pool

    - by Salman
    I am new to jboss and i have been asked to incorporate jboss connection pooling mechanism with an existing web application. Considering that a web application database layer is properly written i.e. all resultsets, statements and connections being closed properly when not needed, What all code changes i will have to make in my web app after i have configured the jboss datasource properly. Can anybody please point me to a tutorial or a code sample which uses jboss datasource in a web app.

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  • How to make a transparent NSScroller?

    - by aquaibm
    This is my application screenshot.There is only one NSScrollView on the window.I try to make all the scrollview elements transparent,and obviously parts of my code work, but the scroller doesn't. Here is my draw code for custom NSScroller subclass. - (void) drawRect: (NSRect)dirtyRect { [[NSColor clearColor] set]; NSRectFill(dirtyRect); [self drawKnob]; } Does anyone have a clue to make this work? Thanks a lot.

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  • Catching a python app before it exits

    - by Leopd
    I have a python app which is supposed to be very long-lived, but sometimes the process just disappears and I don't know why. Nothing gets logged when this happens, so I'm at a bit of a loss. Is there some way in code I can hook in to an exit event, or some other way to get some of my code to run just before the process quits? I'd like to log the state of memory structures to better understand what's going on.

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  • Storing secret keys on iPhone source and project resources

    - by hgpc
    Is storing secret keys (internal use passwords and such) on iPhone source code and project resources (such as plist files) secure? Obviously nothing is 100% secure, but can this information be extracted easily from an installed app? How do you recommend storing these keys to use them in the source code? Just in case, this question is not about storing user passwords.

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  • How to exclude classes exported for actionscript in AsDoc

    - by Bartvbl
    I am trying to use AsDoc on the code of one of my projects in flash. Some of the classes that I use inside the code are "exported for actionscript" classes from my FLA file. Of course the AsDoc compiler complains that those classes are not defined anywhere. Does anyone know how to make it ignore these class types?

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  • Pretty-print HTML5

    - by blinry
    Is there a command line program that pretty-prints (that is, indents, adds line breaks to) HTML5 code? tidy does too much for me (heck, it alters my doctype!), vim too little. What do you use to make your HTML5 code look beautiful?

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  • Showing each step geocode of directions

    - by Puru puru rin..
    Hello, Google Maps API can build a Direction from a source to a destination. In the following Google's example, each step are published into the HTML code: http://code.google.com/apis/maps/documentation/examples/directions-simple.html I would like to get the Geocoding of each step of this direction, and store them in a array. I believe it's possible, but I don't see how to process. Many Thanks for any answer. Regards

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  • validator="" attribute of <h:inputtext> in jsf causing exception

    - by Amit
    We are trying to migrate from WS5 to WAS7 and the jsf code is causing the following error Original Exception: Error Message: JSPG0227E: Exception caught while translating /jsp/listView/listViewUPD_MAP_UM01.jsp: JSPG0301E: Invalid attribute, validator, for deferred method returning void. Error Code: 500 Target Servlet: /jsp/listView/listViewUPD_MAP_UM01.jsp Error Stack: com.ibm.ws.jsp.translator.JspTranslationException: JSPG0227E: Exception caught while translating /jsp/listView/listViewUPD_MAP_UM01.jsp: JSPG0301E: Invalid attribute, validator, for deferred method returning void. at com.ibm.ws.jsp.translator.visitor.generator.BaseTagGenerator.evaluateAttribute(BaseTagGenerator.java:527)

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  • HTML Comment-out Add-In

    - by Velika
    Here is an old add in to quickly comment out HTML code. Maybe I am missing it, but it seems like there is a shortcut in VS2010 to scratch your tail with one click but commenting out HTML code is still awkward as hell. What's the easiest way to get a function like this working? Can I expect any add-ins that were written for older versions of VS to work in VS2010 w/o an upgrade?

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  • C# - google translate

    - by Ockonal
    Hi guys. I have to translate some text with google's translate service. All code I've founded don't work. I think after changing that service. Maybe someone has working code. I'll be very glad. Thanks

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  • -moz-linear-gradient

    - by bah
    Hi, Could someone explain to me what this portion of code means? repeat scroll 0 0 #F6F6F6; I have googled a lot and only found syntax to this part -moz-linear-gradient(center top , #FFFFFF, #EFEFEF) My code: background: -moz-linear-gradient(center top , #FFFFFF, #EFEFEF) repeat scroll 0 0 #F6F6F6; Thanks!

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  • EXEC_BAD_ACCESS in UITableView cellForRowAtIndexPath

    - by David van Dugteren
    My UITable is returning EXEC_BAD_ACCESS, but why! See this code snippet! Loading the UITableView works fine, so allXYZArray != nil and is populated! Then scrolling the tableview to the bottom and back up causes it to crash, as it goes to reload the method cellForRowAtIndexPath It fails on line: "NSLog(@"allXYZArray::count: %i", [allXYZArray count]);" - (UITableViewCell *)tableView:(UITableView *)theTableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"CellIdentifier"; UITableViewCell *cell = [theTableView dequeueReusableCellWithIdentifier:CellIdentifier]; cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; @try { if (allAdviceArray == nil) { NSLog(@"nil"); allXYZArray = [ToolBox getMergedSortedDictionaries:allXYZGiven SecondDictionary:allXYZSought]; } NSLog(@"%i", [indexPath row]); NSLog(@"allXYZArray::count: %i", [allXYZArray count]);

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  • What are the differences between GIT and SVN when it comes to merge conflicts solving.

    - by chalup
    I keep hearing that branching in git is so much easier than in SVN, because it's easier to merge the branch back to trunk/master. I've read some tutorials, but they only covered basic merge conflicts ("Alice changed line 8 of code.cpp and at the same time Bob changed line 8 of code.cpp...") and there are no differences between SVN and all other distributed source control systems. Can you give me the examples of changes in branch that would cause troubles in SVN repository, but would be handled gracefully by git?

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  • Multiple file types in vim

    - by Chad
    When I am working on a PHP file for example the default filetype is php. This makes sense, however when that PHP file has HTML as well the filetype is still only php. For some plugins that means that I get the PHP functionality for that plugin, but miss out on the HTML functionality. A more specific situation where this happens is with my snippet plugin. I get php snippets and not html snippets when I am editing a php file. Possible solutions to this (which I obviously don't like, hence my posting this question) are: add a map to toggle between different filetypes when I am editing different sections of the file. update my php snippets file to include the html snippets as well (while this would work for the example above, it doesn't solve the fundamental problem). So, Is there a way to edit a file using multiple filetypes at the same time in vim?

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  • In windbg, how do I get a heap header address from !heap -l results?

    - by Kevin
    I am playing around with windbg's !heap command, particular the "-l" switch which detects memory leaks. When -l does detect a leak, I am having problems navigating from its results to a stack trace for the source of the leak. Here is a snippet of the results from !heap -l 0:066 !heap -l Searching the memory for potential unreachable busy blocks. Entry User Heap Segment Size PrevSize Unused Flags 0324b500 0324b508 01580000 03230000 20 60 a busy 0324b520 0324b528 01580000 03230000 20 20 a busy 0324b5c8 0324b5d0 01580000 03230000 20 28 a busy Windbg's documentation for !heap tells me to use dt _DPH_BLOCK_INFORMATION with the header address, followed by dds with the blocks' StackTrace field. But the output for !heap -l doesn't specify a header address! It's only specififying Entry, User, Heap, and Segment. I've racked my brain looking over the other commands but can't figure out how to get the header address from any of these fields. Can someone help?

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  • struct.error: unpack requires a string argument of length 4

    - by Thomas O
    Python says I need 4 bytes for a format code of "BH": struct.error: unpack requires a string argument of length 4 Here is the code, I am putting in 3 bytes as I think is needed: major, minor = struct.unpack("BH", self.fp.read(3)) "B" = Unsigned char (1 byte) + "H" unsigned short (2 bytes) = 3 bytes (!?) struct.calcsize("BH") says 4 bytes.

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  • Computer Language puns and jokes

    - by Mark Harrison
    I'm looking for some funny jokes and puns that occur in computer languages. I'll post an oldie to kick things off... What are some others? update: Especially looking for code-related jokes... the ones that only make sense to programmers reading code.

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  • Python lazy property decorator

    - by detly
    Recently I've gone through an existing code base and refactored a lot of instance attributes to be lazy, ie. not be initialised in the constructor but only upon first read. These attributes do not change over the lifetime of the instance, but they're a real bottleneck to calculate that first time and only really accessed for special cases. I find myself typing the following snippet of code over and over again for various attributes across various classes: class testA(object): def __init__(self): self._a = None self._b = None @property def a(self): if self._a is None: # Calculate the attribute now self._a = 7 return self._a @property def b(self): #etc Is there an existing decorator to do this already in Python that I'm simply unaware of? Or, is there a reasonably simple way to define a decorator that does this? I'm working under Python 2.5, but 2.6 answers might still be interesting if they are significantly different.

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  • WPF: ComboBox DisplayMemberPath is suddenly not shown anymore ?

    - by msfanboy
    Hello, in my ComboBox I see 3 times this: MyNameSpace.ViewModel.CustomerViewModel ?? Actually this code worked but now don`t know what I changed: <ComboBox DisplayMemberPath="{Binding Path=CustomerName}" SelectedIndex="0" ItemsSource="{Binding CustomersViewModel}" /> Customers is a ObservableCollection The same code works fine with a ListBox just using DisplayMemberBinding instead of DisplayMemberPath. What is wrong?

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  • Recycle a project name?

    - by deamon
    I want to start an open source project, but my favourite project name was already used for a framework with the same goal. This project was never popular, had only two active days with commits at Google Code and is dead since four years. In other words: the project is irrelevant but the name is in use at Google Code and ohloh (the same dead project). The .org domain would be available. Would it be ok to reuse this project name?

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  • Objective-C: How to create a method that will return a UInt8 array from an int

    - by Adam
    I need to create an Objective-C method that converts an int into a byte array. In this instance, I can't use NSArray as a return type, it must be an UInt8 array. I've written a simple method to do this, but it has errors during compile and tells me that I have incompatible return types. Here is the code snippet. Any ideas? - (UInt8[])ConvertToBytes:(int) i { UInt8 *retVal[4]; retVal[0] = i >> 24; retVal[1] = i >> 16; retVal[2] = i >> 8; retVal[3] = i >> 0; return retVal; }

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  • jQuery RadioButton index

    - by Tomas
    Hello How to get checked RadioButton Index using jQuery? I need to read it and save to cookies to load status later using code $('input[name="compression"]')[{Reading from cookies code}].checked = true; 1<input name="compression" type="radio" value="1" checked="checked" /> 2<input name="compression" type="radio" value="2" /> 3<input name="compression" type="radio" value="3" /> Regards Tomas

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