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  • How to make a text box in a command line window?

    - by The.Anti.9
    I'm working with .NET (specifically Boo, but answers would work in C# too) and I want to know how I could create an editable box inside the command line, such that I could display a section of output in the top part of the command line, and have a one line box at the bottom for input, much like the program irssi (the IRC client) does. I assume this is possible with .NET, how would I approach this?

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  • System of linear equations in C++?

    - by Archagon
    I need to solve a system of linear equations in my program. Is there a simple linear algebra library for C++, preferably comprised of no more than a few headers? I've been looking for nearly an hour, and all the ones I found require messing around with Linux, compiling DLLs in MinGW, etc. etc. etc. (I'm using Visual Studio 2008.)

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  • How to group a database write and spreadsheet write in single "transaction"

    - by WhyGeeEx
    I have a Java program that writes results to both a DB (SQL Server) and a spreadsheet (POI), and it would be best if neither is written to if there's an error with either. It would be a lot worse if the spreadsheet was produced and then an error happened while saving to the DB, so I'm doing the DB-write first. Even so, I'm wondering if someone knows of a way to guarantee they both succeed or fail as a unit. Thanks!

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  • list controls in flex3

    - by madhu
    Iam new to flex. in my work I have a problem. in my program i have to use three lists and one button. one is employees list,2nd is managers list and third is details list. depending on the selected items in the 2 lists i have display the items in detailed list can any one help me? thanks in advance.

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  • is c++ STL algorithms and containers same across platforms and performance?

    - by Abhilash M
    After learning good amount of c++, i'm now into STL containers and algorithms template library, my major concerns are, 1) Is this library same across different platforms like MS, linux n other os? 2) will quality or efficiency of program c++ module decrease with more use of STL containers and algorithms, i think i can't customize it to all needs. 3) Is this template library good to use in linux system programming, kernel modules? 4) lastly can i use this in programming contests, because it relives a lot of coding and pressure off shoulders.

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  • Interesting bug in PHP

    - by Bakhtiyor
    Here in the following block of program it prints 2 instead of 1. <?php f(0, $$var); $x = 1; $y = 2; echo $x; function f($a, $b) {} ?> Any suggestions? UPDATED This information has been get from http://habrahabr.ru/blogs/php/95595

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  • Visual Studio keeps running the old build

    - by Mike Pike
    Hello. I have a simple Silverlight program that displays a bunch of images. I modified it do display more images, but it when I hit "run without debugging" is keeps running the old build with fewer images. When I copy the code into a new project and run it, it works fine for the first time, but then each subsequent change is not displayed. What could be the problem? I'm using Visual Web Developer 2008 Express.

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  • Perl DBI failing to connect to cataloged DB2 database.

    - by Buzkie
    I've downloaded the IBM DBI package, including all the packages in my program as specified in the docs. I've cataloged the DB and can connect to it from the command line, but my DBI connect fails: $dbh = DBI->connect ("dbi:DB2:warehou1", user, pass) or die "Can't connect to sample database: $DBI::errstr"; Can't connect to sample database: [IBM][CLI Driver] SQL1031N The database directory cannot be found on the indicated file system. SQLSTATE=58031

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  • iPhone init method return type

    - by William Jockusch
    Suppose we are writing a class (let's call it Class) in an iPhone program. In all the samples out there, the init methods are typically declared like this: -(id) initWithFoo: (Foo *) foo My question is: would it be more logical to do the following? Why or why not? -(Class *) initWithFoo: (Foo *) foo

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  • breakpoint inside QComboBox subclass not working

    - by yan bellavance
    I have subclassed QComboBox to customize it for special needs. The subclass is used to promote QComboBoxes in a ui file from QtDesigner. Everything works except that when I put a break point in a slot, the program does not stop at the breakpoint. I do however know that it is being called from the result it generates. I checked other slots in my program and they work fine with breakpoints. Doing a clean and rebuild all did not fix it. What could be causing this and is there anything I can do about it? The slot in question is the only one in the subclass and is called "do_indexChanged()". You can find the slot on line 37 of the class header below and the signal-slot connection on line 10 of the class source file. CLASS HEADER: #ifndef WVQCOMBOBOX_H #define WVQCOMBOBOX_H #include <QWidget> #include <QObject> #include <QComboBox> #include <QVariant> class wvQComboBox : public QComboBox { Q_OBJECT //Q_PROPERTY(bool writeEnable READ writeEnable WRITE setWriteEnable) public: explicit wvQComboBox(QWidget *parent = 0); bool writeEnable() { return this->property("writeEnable").toBool(); } void setWriteEnable(const bool & writeEnable){ this->setProperty("writeEnable",writeEnable); } bool newValReady() { return this->property("newValReady").toBool(); } void setNewValReady(const bool & newValReady){ this->setProperty("newValReady",newValReady); } QString getNewVal(); int getNewValIndex(); int oldVal; //comboBox Index before user edit began private slots: void do_indexChanged(){ this->setWriteEnable(true); if(oldVal!=currentIndex()){ this->setNewValReady(true); oldVal=currentIndex(); } } protected: void focusInEvent ( QFocusEvent * event ); //void focusOutEvent ( QFocusEvent * event );//dont need because of currentIndexChanged(int) }; #endif // WVQCOMBOBOX_H #include "wvqcombobox.h" wvQComboBox::wvQComboBox(QWidget *parent) : QComboBox(parent) { this->setWriteEnable(true); this->setNewValReady(false); oldVal=this->currentIndex(); connect(this,SIGNAL(currentIndexChanged(int)),this,SLOT(do_indexChanged())); } void wvQComboBox::focusInEvent ( QFocusEvent * event ) { this->setWriteEnable(false); oldVal=this->currentIndex(); } QString wvQComboBox::getNewVal(){ setNewValReady(false); return this->currentText(); } int wvQComboBox::getNewValIndex(){ setNewValReady(false); return this->currentIndex(); }

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  • Which dll's are required to run osql.exe as a standalone?

    - by chama
    According to the accepted answer to this question, the osql.exe utility can be run as a standalone program on a computer without SQLServer, simply by copying the binary file to the new computer. My question is, however, which other files need to be copied along with osql.exe for it to work? Thanks so much!

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  • Copying sectors?

    - by baltusaj
    Is there a script i can use to copy some particular sectors of my Harddisk? I actually have two partitions say A and B, on my Harddisk. Both are of same sizes. What i want is to run a program which starts copying data from the starting sector of A to the starting sector of B until the end sector of A is copied to the end sector of B. Looking for possible solutions... Thanks a lot

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  • How to draw a line between points in google map in Android

    - by wafa.cs1
    Hello I already wrote a program that read locations from android GPS ; each locatin(long , lat) will be sent to remote server to save it and display it in a website map. what I'm trying to do now is to display my path in android by drawing line between the points I didn't find any sufficient answer until this moment! so how this can be done?

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  • Can you authenticate Facebook Graph entirely from command line with Python?

    - by Sebastian
    I'm writing a (tabbed) application for Facebook that requires a background process to run on a server and, periodically, upload images to an album on this application's page. What I'm trying to do is create a script that will: a) authenticate me with the program b) upload an image to a specific album All of this entirely from the command line and completely with the new Graph API. My problem right now is trying to locate the documentation that will allow me to get a token without a pop-up window of sorts. Thoughts?

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  • Java - when to use notify or notifyAll?

    - by mdma
    Why does java.lang.Object have two notify methods - notify and notifyAll? It seems that notifyAll does at least everything notify does, so why not just use notifyAll all the time? If notifyAll is used instead of notify, is the program still correct, and vice versa? What influences the choice between these two methods?

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  • Parse error in application web.xml

    - by saloni
    I am making a simple servlet program and when i started my tomcat I m getting the error "java.lang.IllegalArgumentException:" and Parse error in application web.xml. and in web.xml http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" sample Samplelass SampleClass SampleClass /sample sample/page/form.jsp

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