|
If you are using SDI, override the CDocument::DeleteContents() and do the cleanup as I remember correctly if you are calling file new command OnCloseDocument will not be called, instead OnNewDocument. And try debugging whether the object is deleted at OnCloseDocument. As other users replied to initialize NULL, you have to intialize to NULL in constructor rather than OnNewDocument() as there are cases OnNewDocument called twice. When ever you delete then set to NULL;
|
|
|
|
|
rp_suman wrote: When I create new document and closing it, there is a memory leak report...
In MFC, you don't see the result of a memory leak until the application is shut down. How are you verifying this?
"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
|
|
|
|
|
DavidCrow wrote: In MFC, you don't see the result of a memory leak until the application is shut down. How are you verifying this?
Hi, You are right,
In debug mode, I create new document by File -> New, closing it and exit the application, there is a memory leak report in output window as:
normal block at 0x00F8A428, 416 bytes long. and the code at reported line is:
m_TList = new TList;
where m_TList is a pointer of class TList.
I use VLD usually to find memory leak. But most of memory leaks reported by VC itself.
Thanks & Regards,
Suman
modified on Monday, March 17, 2008 9:08 PM
|
|
|
|
|
So when m_TList is no longer needed, delete it.
"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
|
|
|
|
|
Hi all..
How do i retrieve selected year,date,day, minute or second from datetime control??
Thanks
Ash..
|
|
|
|
|
It's Non-MFC Application.
Ash..
|
|
|
|
|
Why you are not using MSDN, see DateTime_GetSystemtime()
|
|
|
|
|
Have you considered the DTM_GETSYSTEMTIME message?
"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
|
|
|
|
|
hi guys,
this program creates number spiral Matrix
For example :
Enter a number : 4
01 02 03 04
12 13 14 05
11 16 15 06
10 09 08 07
Code :
#include <iostream.h>
int main()
{
int UserNo=1; // default Value
int StoreArray[100][100];
cout<<endl<<"Please enter a number :";
cin>>UserNo;
int Sqr=UserNo*UserNo;
int r=1,c=UserNo;
StoreArray[UserNo][UserNo];
int n=1;
do
{
for (int b=r;b<=c;b++)
{
StoreArray[r][b]=n;
n++;
}
for (b=r+1;b<=c;b++)
{
StoreArray[b][c]=n;
n++;
}
n--;
for (b=c;b>=r;b--)
{
StoreArray[c][b]=n;
n++;
}
for (b=c-1;b>=r+1;b--)
{
StoreArray[b][r]=n;
n++;
}
r++;
c--;
}while (n<sqr);>
if (UserNo%2!=0)
{
int mid=((UserNo/2) +1);
StoreArray[mid][mid]=Sqr;
}
// DISPLAYING
for (int a=1;a<=UserNo;a++)
{
for (int b=1;b<=UserNo;b++)
{
cout<<StoreArray[a][b]<<" | ";
}
cout<<endl;
}
return 1;
}
|
|
|
|
|
AnkurS wrote: this program creates number spiral Matrix
Thanks for your effort!
Maxwell Chen
|
|
|
|
|
And... ? What is the question ? 
|
|
|
|
|
Cedric Moonen wrote: And... ? What is the question ?
OP don't want to ask any questions, perhaps instead of posting an article he posted a message.
"Life was much simpler in 2002"
|
|
|
|
|
hi,
The following one shows hello world.
#include <stdio.h>
void main()
{
printf("hello world\n");
}
</stdio.h>
Greetings.
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
|
|
|
|
|
CPallini wrote: hello world
It reminds me the article "Evolution of a programmer".
Maxwell Chen
|
|
|
|
|
|
I see some MFC macro use do{}while(0), for example
#define AfxOutputDebugString(lpsz) \<br />
do \<br />
{ \<br />
USES_CONVERSION; \<br />
_RPT0(_CRT_WARN, W2CA(lpsz)); \<br />
} while (0)<br />
#else
why use this kind of technique?
|
|
|
|
|
Not anymore! Now AfxOutputDebugstring is defined as:
#define AfxOutputDebugString TRACE
Maxwell Chen
|
|
|
|
|
Hi,
the do{} while(0) is a technique to force the programmer to place a ; after the MACRO line so it looks more like a normal function then a macro
codito ergo sum
|
|
|
|
|
|
Hi, I'm currently using Borland C++ Builder 6.0 right, and since I'm still a beginner in using this tool, I find many difficulties in using this tool...
I wanted to make multiple forms that could communicate with each other, but I still can't make it...
It's probably a silly question, but I'm trying to get the input from the pop-up window and display it at the main window... But I still can't figure the right way to do it... I wrote the program like the following (Note : Form1 is the main window, and Form2 is the pop-up window)
Where, form1 has 2 button, which is btnInput(to show the pop-up window) and btnClose (to close the application), meanwhile form2 has 2 button, which is btnOK (to retrieve the input and close the pop-up window) and btnCancel (just close the pop-up window)
//---------------------------------------------------------------------------
#include <vcl.h>;
#pragma hdrstop
#include "Main.h"
#include "PopUp.cpp"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
TForm2 *Form2;
String input;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
: TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::btnInputClick(TObject *Sender)
{
Form2->ShowModal();
}
//---------------------------------------------------------------------------
void __fastcall TForm1::btnCloseClick(TObject *Sender)
{
this->Close();
}
//---------------------------------------------------------------------------
void __fastcall TForm2::btnOKClick(TObject *Sender)
{
input = Form2->Edit1->Text;
Form1->lblInput->Caption = input;
this->Close();
}
//---------------------------------------------------------------------------
void __fastcall TForm2::btnCancelClick(TObject *Sender)
{
this->Close();
}
//---------------------------------------------------------------------------
Is there anyone who could help, pleaseee...
|
|
|
|
|
|
Hello all
I want to develop application to communicate my pc and my office pc.
In this application, on My office PC i have made one application for listening on Socket for connection.
Now how can i develop an application for my home PC so that i con connect to my office PC?
One think i see on internet is that it is possible with VPN, But its to hard process.
So i want to know any other alternative for it.
Is there anybody who can solve my Problem?
Thanks in advance.
Manish Patel.
B.E. - Information Technology.
|
|
|
|
|
Hello everyone,
I am looking for a good sample about how to implement C++ pre-condition and post condition check, but can not find a good sample code. Do you have any referred ones? 
Since I can not find, I wrote the patterns in two ways, I am not sure which is correct and if both are not correct, how to implement this pattern?
Sample code 1,
#define MAX 1024
class Base
{
public:
void foo(int i)
{
if (i > MAX)
{
}
else
{
do_foo(i);
}
}
private:
virtual void do_foo(int i) = 0;
};
class Derived : public Base
{
private:
virtual void do_foo(int i)
{
}
};
int main()
{
Derived d;
d.foo (1000);
return 0;
}
Sample 2,
#define MAX 1024
class Base
{
public:
void foo(int i)
{
if (i > MAX)
{
}
else
{
do_foo(i);
}
}
private:
virtual void do_foo(int i) = 0;
};
class Derived : public Base
{
public:
virtual void do_foo(int i)
{
foo (i);
}
};
int main()
{
Derived d;
d.do_foo (1000);
return 0;
}
thanks in advance,
George
|
|
|
|
|
A word of advice not related to your problem: dump the macros! Use an enum instead, for example. One disadvantge of using macros is that they don't have scope and so can't be put into namespace and such.
enum { MAX = 1024 };
Steve
modified on Monday, March 17, 2008 1:49 AM
|
|
|
|
|
Thanks Steve,
My bad, any comments or replies to my original question?
regards,
George
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
