C / C++ / MFC Discussion Boards

parth.p2-Apr-08 9:11

2-Apr-08 9:11

Hey Thanks for Reply, but I have already mentioned that I DO NOT WANT TO USE VB (and yes I do know how to do it in VB. For .NET there is another method available by using Random class and then Random.Next())

But anyway thanks for reply. Smile | :)

- Stop thinking in terms of limitations and start thinking in terms of possibilities -

Time Comparision

john56322-Apr-08 2:31

john5632

2-Apr-08 2:31

Hi
How can I compare CTime with FITETIME?

Re: Time Comparision

CPallini2-Apr-08 3:09

CPallini

2-Apr-08 3:09

Hint: one of the CTime constructors looks promising

CTime(
   const FILETIME& ft,
   int nDST = - 1 
);

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

Re: Time Comparision

Hamid_RT7-Apr-08 4:05

Hamid_RT

7-Apr-08 4:05

See here[^] if its helpfuls.

Problem of Edit Box Control.

Le@rner2-Apr-08 2:04

Le@rner

2-Apr-08 2:04

Hi all,

I m using VC++2005,and in my application i m using editboxcontrol for enter numeric values.

but now i have a problem how can i get this numeric value from editboxcontrol.

please anyone can help me.

thanks in advance.

Re: Problem of Edit Box Control.

Cedric Moonen2-Apr-08 2:19

Cedric Moonen

2-Apr-08 2:19

By associating a variable to the control and calling UpdateData(TRUE) in your dialog class.
You could also retrieve the text of the window by calling GetWindowText on the control.

Anyway, it is a very very basic question and it seems that you really need a good book about MFC. You'll be much more efficient that asking questions on a forum whenever you have an issue.

Cédric Moonen
Software developer

Charting control [v1.3]

Re: Problem of Edit Box Control.

Le@rner2-Apr-08 2:28

Le@rner

2-Apr-08 2:28

Thanks

Can u please suggest me a book for MFC because i m new in this field

Re: Problem of Edit Box Control.

Maximilien2-Apr-08 2:40

Maximilien

2-Apr-08 2:40

"Programming Windows with MFC" by Jeff Prosise.

Maximilien Lincourt
Your Head A Splode - Strong Bad

Re: Problem of Edit Box Control.

Hamid_RT7-Apr-08 4:04

Hamid_RT

7-Apr-08 4:04

MSDN is good place.

Re: Problem of Edit Box Control.

David Crow2-Apr-08 3:35

David Crow

2-Apr-08 3:35

ThatsMe. wrote:
but now i have a problem how can i get this numeric value from editboxcontrol.

By using GetWindowText(). Read this for more.

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Creating dynamic output in command prompt

Auchioane2-Apr-08 1:31

Auchioane

2-Apr-08 1:31

I'm currently working on a project where users create objects (as many as they like). The names of these objects are then used in a command prompt to select and then display their information. I can currently make as many objects as I like but using their names as the menu headings is proving to be difficult.
Here is an example of what I am after. Think of this as output with the numbers down the side refering to a number selection.

1.create new object
2.quit to main menu

Please choose one:

so a user selects 1 and creates a new object with the name "score". After creation the user is sent back to the main menu looking like this after the object is created

1.score
2.create new object
3.quit to main menu

If the user was to select score this would then bring up the object data somethiing as follows:

Name: Score
Score: 24
Modifier: 2

I know how to retrive only the name of the object and display it fine but using it as a selection as I said before is proving to be difficult. If anyone has any insight on something like this in c++ please reply

Thanks.

I'm coding this in c++.

Re: Creating dynamic output in command prompt

Cedric Moonen2-Apr-08 2:12

Cedric Moonen

2-Apr-08 2:12

It is very difficult to understand your problem, please keep in mind that we don't see your code, so we have no idea on how you implemented this.

Please provide some relevant code (and format it properly using the pre or code tags) and give some more detailed explanation by taking into account that need to understand what you are talking about.
What is an "object" in our case ? A class ? If yes, how does it look like ? And why can't you extract other information than the name Confused | :confused:

Cédric Moonen
Software developer

Charting control [v1.3]

Re: Creating dynamic output in command prompt

Auchioane2-Apr-08 2:44

Auchioane

2-Apr-08 2:44

Sorry should have stated myself clearer. I can extract any of the data items from the created objects. The objects are instances of my designed class.

The class that im using is basicly with member functions taken out:

class thing
{
string name;
double price;
string desc;
}

I'm using vectors to store my objects since I'm only just learning to code in c++ and don't quite understand pointers but have experiance with other languages like modula2.

Re: Creating dynamic output in command prompt

Cedric Moonen2-Apr-08 2:57

Cedric Moonen

2-Apr-08 2:57

Ok, but what is the problem ?? You still didn't explain precisely where you are stuck. Please, try to be as clear as possible.

Cédric Moonen
Software developer

Charting control [v1.3]

Re: Creating dynamic output in command prompt

Auchioane2-Apr-08 12:03

Auchioane

2-Apr-08 12:03

The problem I'm having is how do I code somthing thats going to be generated dynamiclly.

Static menus are simple:

<pre>cout << "1.Create new object"
<< "\n2.Quit to main menu"
<< "\n Please choose one: ";
cin >> choice;

if (choice == 1)
{
createObject();
runMenu(); //would be done recursivly if you get my drift
}
else if (choice == 2)
{
runMenu();
}
else
{
error();
}
</pre>

That I can hard code the different numbers to do different things, but since I don't know how many object the user will create I can't really hard code it. I hope that helps somewhat.

Re: Creating dynamic output in command prompt

Cedric Moonen2-Apr-08 20:36

Cedric Moonen

2-Apr-08 20:36

Ooookay, that makes finally a bit more sense Smile | :)

. So, as you said, your objects are stored in a vector and you would like to add a line in your 'menu' for each element, right ?

So, simply do something like this:

int menuIndex = 1;<br />
vector<MyObject>::iterator iter = m_vector.begin();<br />
for (iter; iter!=m_vector.end();iter++)<br />
{<br />
cout << menuIndex << ". Show details of element " << (*iter).name << endl;<br />
}<br />

And then, for the choices, you check if what the user entered is between 1 and m_vector.size(). If that's the case, then you can retrieve this element from the vector and display its content (m_vector[choice]).

Does it make more sense ?

Cédric Moonen
Software developer

Charting control [v1.3]

Re: Creating dynamic output in command prompt

Maximilien2-Apr-08 2:48

Maximilien

2-Apr-08 2:48

You are wanting to do a simple "text interface".

Well, you need a lot of std::cout, std::cin, and a "state machne"

for example :

you have this menu ( I assume typing the number will "do" the action)

1.create new object
2.quit to main menu

user press "1" this will do the "create new object" action and print the same menu again (stays in the same state); user press "2" then the program goes to a new state) and print the "main menu" (for example )

1.score
2.create new object
3.quite to main menu

user press "1" to do the score state (or action).

'anyway, I hope you get the picture.

One suggestion, is to take a piece of paper, a pen and draw the different link (arrows) between each action and each "state" and after the "scenario" is drawn, try to put in in code. (lot of if, case, loops, ...

Maximilien Lincourt
Your Head A Splode - Strong Bad

Re: Creating dynamic output in command prompt

Auchioane2-Apr-08 16:00

Auchioane

2-Apr-08 16:00

Don't worry guys / gals I managed to work it out.

Thanks for your help anyway.

CallStack checking?

RamaraoPV2-Apr-08 0:35

RamaraoPV

2-Apr-08 0:35

Hi,

I do not know how to test CallStack and debug can anyone tell me how to do it or can anyone provide any documents about it.

Thanks & Regards,
Ramarao. Rose | [Rose]

Re: CallStack checking?

Cedric Moonen2-Apr-08 0:57

Cedric Moonen

2-Apr-08 0:57

Start your debugger (press F5), to see the callstack window go into (Debug/Windows/Call Stack) for VC2005. When your program crashed, you can check the callstack to see which of your function caused the problem. There you can put some breakpoints (F9) and go step by step to see what's happening. Hover your mouse over the different variables to see their values.

Cédric Moonen
Software developer

Charting control [v1.3]

Re:Thanks still i have the question?

RamaraoPV2-Apr-08 1:13

RamaraoPV

2-Apr-08 1:13

Thanks

I did it and i found that the problem comes when we call MessageBoxIndirect(). Everything is loading very well into MSGPARAMS, so what might causing the crash?

Regards,
Ramarao. Rose | [Rose]

Re:Thanks still i have the question?

Cedric Moonen2-Apr-08 2:14

Cedric Moonen

2-Apr-08 2:14

Do you have an assertion message ? If yes, please provide the text because it is almost impossible to guess what might be wrong.

Cédric Moonen
Software developer

Charting control [v1.3]

Printer DC

Developer6112-Apr-08 0:22

Developer611

2-Apr-08 0:22