C Board - C# Programming

C# Live Video Editing/Rendering

pkuchaliya — Fri, 20 Nov 2009 13:39:00 GMT

hi to all,
I have design a Application that takes input

from the Web cam or other video devices. and

have to add some frames in the Live video and

then display.
i have study out the direct sdk , which

provide the flexible enviornment. but i dont

get the proper flow.It is totaly based on the

VC++ component.
Please Help.
Thanks.

How does .ASPX generate HTML?

arcaine01 — Fri, 20 Nov 2009 00:16:15 GMT

I know it may require a hefty explanation, but I was wondering if anyone knew how a .aspx file generates html when you load it into a browser?

I mean...the first internet explorer came out way before .aspx pages, so how does .aspx work with browsers that came out before its existence?

What I would really like to know is...if I created a .asdf format, how would I get it to actually load as an html page in browsers, rather than have it display the contents of the file in the browser?

Fd_set

deathkosui — Wed, 18 Nov 2009 21:36:54 GMT

I need FD_SET from C++ in C# can somebody help me?

Im lost

Carzon — Tue, 17 Nov 2009 14:43:19 GMT

hi..! can u tell me whts the difference ..C , C ++ , C#..& which 1 is best to learn it 1s .. I ty 4 ur opinion

Forms - Button Click

gavra — Tue, 17 Nov 2009 06:18:35 GMT

I have an array of buttons and a method suits for all buttons. But, how can I know which button in the array was clicked? ([0,0] \ [0,1] ...)
Can I pass information to the method?

Thanks.

USB arrival detector

ch4 — Sat, 14 Nov 2009 21:10:14 GMT

I'm testing a code that i found on Internet which detects cd-rom arrival. Now i want to change it in order to detect removable disk arrival.

This is the condition but it doesn't work

Code:

q.Condition = @"TargetInstance ISA 'Win32_LogicalDisk' and TargetInstance.DriveType = 2"

C/C++ objects

uzma_83 — Fri, 13 Nov 2009 15:09:55 GMT

I have three objects in C and c++ A,B,C .
will it be correct or not? explain with proper reason:-

C=A+B; //in c
C=A+B; // in c++

In c++ without operator overloading,give me answer.

What's the best way to parse XML Schema with C# Language.

userpingz — Fri, 13 Nov 2009 02:09:17 GMT

Hello all,

Good day.

I plan to parse XML schema using C#.
But my XSD file is very complex.

What's the best way to parse the XSD file and generate a C# class file.

What can i do is using the classes of System.Xml.Schme ?

Thanks in advance.

BR!
Pingz

some basic string manipulation stuff

DavidP — Wed, 11 Nov 2009 16:14:35 GMT

I am writing some code in C#, in which part of what I am doing requires that I go through a string and find the first character that is not a numeral.

In C++ I could do this quite simply with the string class's find_first_not_of function. In C#, I don't see any equivalent. There is IndexOf, IndexOfAny, LastIndexOf, and LastIndexOfAny, but those obviously aren't what I am looking for.

So right now I am resorting to this:

Code:

string numericValue = string.Empty;

for (int i = 0; i < userInput.Length && !Char.IsLetter(userInput[i]); i++)

{

        numericValue += userInput[i].ToString();

}

You might ask: "You are obviously extracting a numeric value (based on your variable naming mechanism), why not just use the LastIndexOfAny method, and pass it a character array of all numeric characters?" My answer: "The user could input numeric characters somewhere later in the string. Hence it wouldn't work."

How to use something equivlent to Windows Form Application on a Mac OS Leopard

Akkernight — Tue, 10 Nov 2009 21:15:24 GMT

Hello.

My friend has a Mac, and we're interested in learning C#, still it isn't easy when he can't follow because he doesn't have Windows. He's using something called The Mono Project, and he can choose something called a GNOME application, isn't it some GUI thing?
Thanks in advance.

best Overloaded match for method ...

deathkosui — Fri, 06 Nov 2009 02:47:40 GMT

When I compile it tells me best overloaded match for method AESEncryption.shiftrow(byte[], byte);

I am still new to C sharp so can somebody tell me?

Code:

    public static void shiftRow(byte[] state, byte nbr)

    {

        int i;

        int j;

        byte tmp;

        // each iteration shifts the row to the left by 1 

        for (i = 0; i < nbr; i++)

        {

            tmp = state[0];

            for (j = 0; j < 3; j++)

                state[j] = state[j + 1];

            state[3] = tmp;

        }

    }

Code 2

Code:

 public static void shiftRows(ref byte state)

    {

        int i;

        // iterate over the 4 rows and call shiftRow() with that row 

        for (i = 0; i < 4; i++)

            shiftRow(Convert.ToInt16(state + i * 4), i);

    }

I need help with code 2

how to do the card count and how to make the computer add the cards number?

cutechocolateka — Wed, 04 Nov 2009 22:34:25 GMT

The player have to type D 4 times to choose 4 card (card number1-13).. I don't know how to make the computer count the card and make the computer add the card number to the total pts.. please help...

_rotl

deathkosui — Wed, 04 Nov 2009 18:52:24 GMT

in C++ theres _rotl and _rotr is there an equivalent method for those in c#?

C# McDonalds Program Help!

initialfresh — Tue, 03 Nov 2009 21:17:31 GMT

I can't figure out how to assign the value of the item to a variable and store it to be used later, So i can add it to the other items to give the total of the order.

Please Help!

Code:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;



namespace ex6_2

{

    class Program

    {

        static void Main(string[] args)

        {

            string userin;

            char sandwichch;

            char friesch;

            char drinkch;

            int sandwich = 0, fries = 0, drink = 0;

            double total = 0.0;



            Console.WriteLine("(a) Big Mac - $3.99         (b) McChicken - $3.99");

            Console.WriteLine("(c) Filet-O-Fish - $3.00    (d) No Sandwich");

            Console.WriteLine("Please select sandwich: ");

            userin = Console.ReadLine();

            sandwichch = userin[0];

            switch (sandwichch)

            {

                case 'a': //bigmac

                    sandwich = 3.49;

                    sandwich = Convert.ToInt32(Console.ReadLine());

                    break;

                case 'b': //mcchicken

                    sandwich = 3.49;

                    sandwich = Convert.ToInt32(Console.ReadLine());

                    break;

                case 'c': //filetofish

                    sandwich = 3.00;

                    sandwich = Convert.ToInt32(Console.ReadLine());

                    break;

                case 'd': //nosandwich

                    sandwich = 0.00;

                    sandwich = Convert.ToInt32(Console.ReadLine());

                    break;

                default:

                    total = 0.0;

                    Console.WriteLine("Invalid Input");

                    break;

            }

            Console.WriteLine("(a) Large - $2.25 (b) Medium - $1.75 (c) Small - $1.75 (d) No Fries");

            Console.WriteLine("Please select fries size: ");

            userin = Console.ReadLine();

            fries = userin[0];

            switch (friesch)

            {

                case 'a': //large

                    fries = 2.25;

                    fries = Convert.ToInt32(Console.ReadLine());

                    break;

                case 'b': //medium

                    fries = 1.75;

                    fries = Convert.ToInt32(Console.ReadLine());

                    break;

                case 'c': //small

                    fries = 1.25;

                    fries = Convert.ToInt32(Console.ReadLine());

                    break;

                case 'd': //no

                    fries = 0.00;

                    fries = Convert.ToInt32(Console.ReadLine());

                    break;

                default:

                    total = 0.0;

                    Console.WriteLine("Invalid Input");

                    break;

            }

            Console.WriteLine("(a) Large - $1.75 (b) Medium - $1.60 (c) Small - $1.30 (d) No Drink");

            Console.WriteLine("Please select drink size: ");

            userin = Console.ReadLine();

            drink = userin[0];

            switch (drinkch)

            {

                case 'a': //large

                    drink = 1.75;

                    drink = Convert.ToInt32(Console.ReadLine());

                    break;

                case 'b': //medium

                    drink = 1.60;

                    drink = Convert.ToInt32(Console.ReadLine());

                    break;

                case 'c': //small

                    drink = 1.30;

                    drink = Convert.ToInt32(Console.ReadLine());

                    break;

                case 'd': //no

                    drink = 0.00;

                    drink = Convert.ToInt32(Console.ReadLine());

                    break;

                default:

                    total = 0.0;

                    Console.WriteLine("Invalid Input");

                    break;

            }

            if (sandwich >= 3.00 && fries >= 1.25 && drink >=1.30)

            {

                total = sandwich + fries + drink - 0.75;

            }

            else

            {



            }

            Console.WriteLine("Your total is: {0:0.0}", total);

        }

    }

}

jagged arrays with multidimensional array

kenryuakuma — Tue, 03 Nov 2009 02:27:11 GMT

Jagged arrays, namely arrays of arrays is basically similar to a regular dimensional array, which is not hard to understand. But here within a jagged array, there is another array, which is kind of a bit vague to me.

here is a jagged array with a two dimensional array:

int [][,] jagged = new int [3][,];

// so there are three rows

|---------| // row 0;
|---------|

|---------| // row 1;
|---------|

|---------| // row 2;
|---------|

// When we assign jagged [0] a reference to a 4 x 2 array.

jagged [0] = int new [4,2];

// Does it mean that we assign four columns to the row 0?

|---------| |---------| |---------| |---------|
|---------| |---------| |---------| |---------|

// and within each row, there are two more rows?

|--0----1---| |--0----1---| |--0----1---| |--0----1---|
|------0----| |-------1----| |-----2-----| |------3-----|

// So when we assign value to jagged [0][1,0] = 10;
// Does it mean that we access to the second column, which is 1 of the row 0 and
// assign the value 10 to the second row of 1, which is above the column named 1
// 0 and 1, and we assign the 10 to 1, not 0?