vali82

Hi, You probably have something like: [CODE] CSerial serial; serial.Open();[/CODE] And you really do not have a default constructor(no param constructor); so you can't create objects like that. You need to use the constructor you do have: [CODE] CSerial serial("port name goes here"); serial.Open();[/CODE]

My first thought is : use a StudentGrades struct and an array of such structures; it will make the whole thing readable at least :) But let's see what should happen here in the "Ingrade" function ( wierd name by the way ). You say: "// Function that lets user …

Just name the server in your data source connection string: "Data Source=SERVER_NAME_GOES_HERE;Initial Catalog=DATABASE_NAME_GOES_HERE; ..."

Hi, No you can't ! .. and I hope your variable isn't public ! Anyway, I think you misunderstood the event communication concept; the way this works is like this: an object does something ( like changing it's state = "changing a variable") and then it notifies another object ( …

Hi, This is not compilable ... Anyway, there's one method of debugging you could try: don't set any breakpoints, but run it in debug (just press F5) And wait for it to get stuck; then go to VS and from the debug menu press pause. Now you should be able …

Hi, Not sure if recursive is your assignment or not, bu if it's not ... you could do a far better job on some of the functions without it. Recursive functions should be used as sparingly as possible as they are extremely slow...

Hi, Why don't you try to do it the old fashion way ... comment out suspect code blocks until it doesn't happen anymore :)

Hi, You could use [CODE]Char.IsLetterOrDigit(keyChar)[/CODE] Maybe this code will help: [ICODE] while(true) { ConsoleKeyInfo keyInfo = Console.ReadKey(true); char keyChar = keyInfo.KeyChar; if (Char.IsLetterOrDigit(keyChar)) Console.WriteLine(keyChar + " is a letter or a digit."); else Console.WriteLine(keyChar + " is a NOT letter NOR a digit."); if (keyInfo.Key == ConsoleKey.Escape) break; }[/ICODE]

Hi, Not really sure about the posibility of doing this in C#. I've worked a little with filters (whitch are the actual DirectShow components that make up the encoders and decoders), but I used C++ and ATL COMs ... maybe that's what you want ?

use double :)

You can always typecast to "char*" just use [CODE]reinterpret_cast<char*>(myObject)[/CODE] After that you'll just need to know the exact size that object takes in memory to send it over winsock, try [CODE]sizeof(myObject)[/CODE]

Hi, 1) The best way is for you NOT to depend on the order of the object in the vector; If you ABSOLUTELY MUST depend on their order, keep pointers to object in the vector and delete the object + replace it in the vector with NULL; that is, don't …

don't create them on the stack! "new" them up on the heap!

First of all you have an interesting problem here: [CODE]else if (hours <= 50) ; salary = (1.25 * rate * (hours - 40) + rate *40); // else ( salary > 50) // [/CODE] Notice the ";" after [CODE]else if (hours <= 50) ;[/CODE] That's wrong :) That's why …

Hi, See if this works for you: [CODE]const double MIN_CELSIUS = -273.15; double dCel = 0, dFah = 0; // user inputs temp then it's converted to Fahrenheit do { if(dCel < MIN_CELSIUS) { cout << "Invalid temperature: it cannot be lower than " << MIN_CELSIUS; _getch(); system("cls"); // erases …

could you elaborate on that a little ? :)

Hi, You could go with static class methods; here is an example using both global functions and static methods (they are pretty much the same thing): [CODE]typedef void(*ParamFunc)(int i); void ExternalFunctionThatGetsPassedAsParam(int i) { i++; } class Goodies { public: static void SomeFunction(ParamFunc p) { p(5); } }; class DoManyThings { …

You may want to look at std classes. [CODE]vector<string> myStringArray[/CODE] is way better than the clasical array

change "if (i == rEngV.size())" to "if (i == rEngV.size() - 1)" accessing rEngV[rEngV.size()] is wrong