|
|
Hi NiLeSh KoRpE,
All the best ...
|
|
|
|
|
I'm new to C++, but have a solid grasp of pointers and DMA in other languages.
My main issue is that i'm trying to figure out how to do things in an enviroment where i have no base class libraries, and i'm also trying to get my head around the layout of C++ files etc. I have a reasonable grasp of the basics, but am totaly lost as far as collection structures go.
As a learning exercise i am looking to make an arraylist structure. I've had a look around but not found any code that really fills my needs.
* Firstly the structure will contain an array, with count and length data.
* The array will be an array of pointers. (void pointers)
* When the Count value reaches the Length value, a new array is constructed that is scaled up from the origional by a given value.
* The items are shifted across to the new array.
* The origional array is deleted and set to null.
* Add some memory shuffling stuff to add / remove. (I can handle this if i get the rest working)
If anyone can direct me to some source code that will either explain it all or give me enough info to get working on this, that'll be a great help.
Also I've seen some code like this:
<br />
*char a;
<br />
<br />
delete a;<br />
a = NULL;<br />
But there seems to be no NULL keyword. I know it's just setting the pointer to nothing, which should genericaly be 0. Is this an actualy keyword in some version of C++, or is it standard practice to have a global constant 'NULL = 0;'?
Cheers Chaps
Tris
-- modified at 6:48 Thursday 18th May, 2006
|
|
|
|
|
The Catalyst wrote: seems to be no NULL keyword
true, NULL is a simple #define on 0.
What you are basically trying to do is a sort of memory heap, right ? C++ coders normally do not handle collection by themselves, this would be reinventing the wheel, though I can understand that it can be educational. We normally use STLs, or collection provided by the windows API (which is not relevant for you, since you do not want to rely on base classes).
~RaGE();
|
|
|
|
|
Hi,
I want to have a menu with menu items as bitmaps.
How can that be done??
How can I use imagelist to store images n then
populate menu with it??
Thanks.
|
|
|
|
|
|
|
How we can draw over the scrollbar of a CListBox control.
-Sarath
|
|
|
|
|
Sarath C wrote: over the scrollbar of a CListBox control
If you mean overwrite it, then you need to subclass the control (derive your own control from CListBox) and customize the drawing-
~RaGE();
|
|
|
|
|
Hi
I have code for playing Flash files.but,it gives some problem when i want to load the hand cursor when the cursor moves on the flash file.please help.
|
|
|
|
|
Do you use the flash activex control? what error it throws?
<marquee scrollamount="1" scrolldelay="1" direction="up" height="10" step="1">--[V]--
[My Current Status]
|
|
|
|
|
Any way to save/get MSDN favorite items ??
Is this save in a file? Or where it get saved?
|
|
|
|
|
That information is (I think) stored in the ...\microsoft\html help\hh.dat file.
"The largest fire starts but with the smallest spark." - David Crow
|
|
|
|
|
Hi to all, I'm currently an undergraduate in Nanyang Technological University, School of Electrical and Electronics Engineering. My team mates and I are designing to use Logitech gamepad to control a robot's movement. We have decoded the the string codes for every button on the gamepad. However, we have software difficulties in linking these string codes to the GUI application. I would like to seek help in these. My email address is: HEAH0001@ntu.edu.sg
Thank you very much
Yours Sincerely,
Gary
|
|
|
|
|
Your question is too vague. If you'd like help, post a specific question.
|
|
|
|
|
Hi to all! My team used WinDriver software to diagnose the gamepad of Logitech. This diagnosis software creates multiple C++ source code which gives us the character string of each button found on the gamepad. We would like to use these codes to be linked with the GUI application and then to the ADAM system. My team has been trying hard to link the C++ source code files created by WinDriver to the GUI application. The GUI application is also written in C++ source code. The ultimate objective is to use the gamepad to control the robots movement. If these C++ source code files cannot be linked to the GUI application, is there any other ways to do it?
|
|
|
|
|
And the specific Visual C++ programming problem is? Have you tried using DirectInput? Can your gamepad produce WM_CHAR, WM_KEYDOWN, WM_KEYUP messages?
|
|
|
|
|
please explain . What are the different types of polymorphism?
|
|
|
|
|
How much marks does this question carry  ?
<marquee scrollamount="1" scrolldelay="1" direction="up" height="10" step="1">--[V]--
[My Current Status]
|
|
|
|
|
1.Run time polymorphism
-Virtual functions
2.Compile time polymorphism
-Function and operator overloading
Knock out 'T' from CAN'T ,
You 'CAN' if you think you 'CAN'
|
|
|
|
|
|
NiLeSh KoRpE wrote: What are the different types of polymorphism?
i believe two, Function Overloading and Operator Overloading[ I was Wrong]. anyways Mr Nilesh answer to these question can be find easily by reading book, why are you posting here for same!
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
-- modified at 5:22 Thursday 18th May, 2006
|
|
|
|
|
i used random shuffle function in MFC application it doesnt working i dont know why...anyone knows the reason...
<code>void CConeverterDlg::OnEnter()
{
// TODO: Add your control notification handler code here
CString str;
// char str[13];
//cEdit.GetWindowText (str);
//AfxMessageBox(myStr);
//tmStart = time(0);
CTime time=CTime::GetCurrentTime ();
CString strttime= time.Format ("%Y%m%D%H%M%S");
// cEdit2.SetWindowText (strttime+"\n");//;(str)
//cEdit2.SetWindowText (strttime+"\n");
string line(str);
//line.c_str (),100);
//fin.open("data.txt");
// cout << str<<endl;
for (int i=0; i<500; ++i)
{
random_shuffle(line.begin(), line.end());
// File << "Randomised: " << line << endl;
// File << " : " << line << endl;
// File << " : " << line << endl;
// File << " : " << line << endl;
// File << " "<< endl;
// File << "Single Row: " << s << " " << s << " " << s <<" " << s << endl;
// File << " "<< endl;
CString cStr(line.c_str ());
cEdit2.SetWindowText ( cStr + "\n");
cEdit2.SetWindowText ("Randomised: "+ cStr + "\n");
//tmEnd = time(0);
}
CTime time1=CTime::GetCurrentTime ();
CString strtti= time1.Format ("%Y%m%D%H%M%S");
cEdit1.SetWindowText (str);
cEdit1.SetWindowText (strtti+"\n");
//cout << tmEnd-tmStart << " seconds " << endl;
}
</code>
|
|
|
|
|
makaveli_07 wrote: it doesnt working i dont know why
Which kind of failure it falls into?
1) The code compiles with no error and you get the EXE,
2) There is / are some compilation error(s).
Maxwell Chen
|
|
|
|
|
no compilation error the exe can run...but the random shuufle result cannot be shown in the programe.
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
