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  • random number in VC++

    - by BillDickson
    int randomNumber = (double)rand() / (RAND_MAX + 1) * (10 - 0) + 0; is the code I'm using, it is getting a random number, but is getting the SAME random combination every time? Can anyone see what I'm doing wrong?

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  • Session management in Rails (2.3)

    - by JussiR
    Apparently, after upgrading to Rails 2.3 my session storage has stopped working. I used to have this: session :session_expires = 3.years.from_now in my application_controller.rb, but now every time i close the browser (chrome) the session expires. I read from somewhere that session_expires would have changed to expire_after, but session :expire_after = 3.years.from_now didn't do any good eihter.

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  • Destroy Session in an application

    - by Jibu P C_Adoor
    I have several pages in my application. I have used a session variable called "Session["Variable"]" that is set in page1 and page2. That means The scope should be in page1 and page2. If you go out any of these page will clear the above session variable. Is there any solution to clear the particular session varible in the application level. i.e i don't want to write the code for each and every pages...

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  • solution for updating table based on data from another table

    - by I__
    i have 2 tables in access this is what i need: 1. if the PK from table1 exists in table2, then delete the entire record with that PK from table2 and add the entire record from table1 into table2 2. if the PK does not exist then add the record i need help with both the sql statement and the VBA i guess the VBA should be a loop, going through every record in table1. inside the loop i should have the select statement

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  • How to use length indicator in a C++ program

    - by cj
    I want to make a program in C++ that reads a file where each field will have a number before it that indicates how long it is. The problem is I read every record in object of a class; how do I make the attributes of the class dynamic? For example if the field is "john" it will read it in a 4 char array. I don't want to make an array of 1000 elements as minimum memory usage is very important.

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  • [php] mysql and encoding

    - by user339865
    I moved my php application to the new server. i use mysql5 db. When i'm Updating or Inserting something to db, every " and - sign changed to ?. I use SET NAMES UTF8 and SET CHARACTER SET but it don't work. Any ideas?

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  • Create list<string> dynamically

    - by shiv09
    Hello, friends... I want to create a list in a button click event...every time the button is clicked a new list should be created having different name than the previous one... Can anyone please help me out...I'm stuck on it...

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  • Why do I get so many errors building my Android project with Ant?

    - by synic
    Now that I sort of know my way around the SDK/API, I've switched from Eclipse back to my favorite text editor, which means I have to use ant to build my project, however: It seems every other time I compile the project, a lot of drawables get corrupted, resources lose their ids (resulting in NPEs in the code), or classes throw "Verify Errors". The only way to fix this is by removing the bin and gen folders, and recompiling, which is obviously annoying. Is there any way to avoid this? btw, I'm using ant 1.7.1, java version "1.6.0_20"

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  • Trying to draw an image to a form, but not refreshing

    - by flavour404
    Hi, We are using graphics context of a form to draw an image. However it works fine on initial paint but the image is not being updated unless we set a breakpoint and run it in debug mode, stepping through each time. What is a good way of making a seperate thread to paint on to a form every second? Thanks.

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  • I wrote a new X11 keyboard layout file, how do I get my system to recognize it?

    - by grimborg
    I like to configure my keys my way, so I wrote a keyboard symbols file and I put it in /usr/share/X11/xkb/symbols/cat I use it by running setxkbmap cat -variant dvorak (and it works), but it doesn't show up in the console configuration (dpkg-reconfigure console-setup) nor in the Gnome keyboard settings... nor anywhere else, so I have to run setxkbmap every time. I suppose that I have to register it somewhere, but where? Any hints? Thanks!

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  • Copy operation fails when running executable using shortcut.

    - by MiloDC
    I've coded a C# executable that uses xcopy (cmd.exe /Q /D /C xcopy [args]) to duplicate some files. If I run the .exe by double-clicking it, the xcopy operation works every time. If I run the .exe by double-clicking a shortcut to the .exe, the xcopy works only if the shortcut is in the same folder as the .exe. This makes absolutely no sense to me, I wouldn't even know where to begin to find the answer. So, you know, help.

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  • Synchronizing time between two Windows 7 machines connected with a LAN cable

    - by Markus Roth
    I have a number laptops that run our application while connected to each other in pairs with an ethernet cable, but not connected to any external network or the internet. T I need the connected pair to synchronize their system times, but since every computer needs to be able to synch with any other computer, I can't define one computer to be a time-server and the other to be a client. Is there a way to do this with NTP? Or some other way?

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  • How to play music on site preventing easy direct file download

    - by Hugo Palma
    I'm starting a blog with a hosted wordpress instance and i would like to be able to stream music using a flash player on some posts. The problem is that every player i find uses a simple param to get the file url which makes it very easy for someone to find that url and just download the file. I know that it's probably impossible to prevent this all together, but i at least don't want it to be obvious. A server side solution can be implemented as i have full access to the server.

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  • pdf <pre> equivalent

    - by ddowns
    I'm trying to put some code examples in a pdf, but copying them out messes up the formatting and rearranges the lines, there's a lot of manual cleanup needed after pasting. Is there a equivalent to html's pre for PDFs? For "this" block of text respect line breaks, spacing, and copy as plain text like its shown. The closest thing I can see is adding note annotations next to every code example.

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