program crashes after execution??? why? - C / C++ / MFC Discussion Boards

How can I specify the size of a CView when it is created?

<br />
void COragomy_IIView::OnDraw(CDC* pDC)<br />
{<br />
	COragomy_IIDoc* pDoc = GetDocument();<br />
	ASSERT_VALID(pDoc);<br />
<br />
	CRect rect = new CRect( 0, 0, 320, 200 );<br />
	pDoc->m_clientRect = rect;<br />

That doesn't seem to work. Confused | :confused:

...

How to Connect to ODBC (SQL SERVER 2000)
through ADO
which provider should be used

Try http://www.perlmonks.com maybe? Blush | :O

I'm not too clued up still on working with databases but there are several articles on connecting in CP.

http://www.codeproject.com/database/

http://www.codeproject.com/useritems/ConnectionStrings.asp - Connection strings to get connected to each type of database.

Sorry I can't be more help.

hi everyone,

is there a function in vc++ library that does cstring string replace?

i'm looking for a function that does something similar to the description below.. i don't want to write a function, if there is one existed already..

e.g.
replace(inputstring, str1, str2) <- this function search inputstring for the occurance of str1 and replace every occurance of str1 with str2.

thx in advance.

I think CString.Replace is what you're looking for. Give it a lookup in MSDN. You would use it like

CString tmp;
tmp = "aksjdksajdlksajdsakljdsaljd";
tmp.Replace("ask","ksa");

for that the tmp is set to a load of garbage, but the replace will change every occurence of "ask" to "ksa" in the string.

thx for the info, carrie. Wink | ;)

Below are three files, two .cpp files and one .h file. The program runs no problem and does exactly what it is supposed to do but right after it executes it crashes and I cannot figure out why. I have tried to figure this out with someone in my class and he cannot figure it out either. Anyone out there who can figure it out for me????? It crashes on a Win XP machine, btw, if that makes any difference. Thanks. Jo
_________________________________________________________________________________

//header
#ifndef BrandesJF1CIS32B02FD_h
#define BrandesJF1CIS32B02FD_h

class DoubleArray //define class
{
public:
DoubleArray (); //constructor
int &operator() (const int, const int); //overloaded () operator
void PrintArray(); //output data

private:
int array[8][8]; //the 8x8 array

};

#endif

____________________________________________________________________________________

//source
#include "BrandesJF1CIS32B02FD.h"
#include <iostream.h>

DoubleArray::DoubleArray ()
{
for (int rows = 0; rows <=8; rows++) //propogate initial board
{
for (int columns = 0; columns <=8; columns++)
{
array[rows][columns] = columns;
}
}

cout << " The initial board's data\n";
cout << " ________________________\n\n";

DoubleArray::PrintArray(); //display initial board
}

int &DoubleArray::operator() (const int row, const int column) //operator () function def.
{
return array[row][column];
}

void DoubleArray::PrintArray() //PrintArray function definition
{

cout << " 0 1 2 3 4 5 6 7\n";
cout << " ____________________________________\n";

for (int rows = 0; rows <= 7; rows++)
{
cout << " " << rows << "|";
for (int columns = 0; columns <= 7; columns++)
{
if ((array[rows][columns]) < 0)
{
cout << " " << array[rows][columns];
}
else
{
cout << " " << array[rows][columns] << (columns == 7 ? "\n" : "");
}
}
}

cout.flush();

}

______________________________________________________________________________________

//source 2
#include "BrandesJF1CIS32B02FD.h"
#include <iostream.h>
#include <windows.h>

void setcolor(unsigned short); //function prototype for color

main ()
{
DoubleArray board;

setcolor(12); //change color of calculating and final board ONLY
cout << "\nCalculating......\n\n";
cout << "1. board(0,0)=board(0,1)+board(0,7)\n";
cout << "2. board(1,0)=board(1,1)-board(1,7)\n";
cout << "3. board(2,0)=board(2,1)*board(2,7)\n";
cout << "4. board(3,0)=board(3,6)/board(3,2)\n";
cout << "5. board(4,0)+=board(4,7)\n";
cout << "6. board(5,0)-=board(5,7)\n";
cout << "7. board(6,0)++\n";
cout << "8. board(6,0)*=board(6,7)\n";
cout << "9. board(7,0)=7\n";
cout << "10. board(7,0)/=board(7,1)\n\n";

board(0,0)=board(0,1)+board(0,7); //calculates data
board(1,0)=board(1,1)-board(1,7);
board(2,0)=board(2,1)*board(2,7);
board(3,0)=board(3,6)/board(3,2);
board(4,0)+=board(4,7);
board(5,0)-=board(5,7);
board(6,0)++;
board(6,0)*=board(6,7);
board(7,0)=7;
board(7,0)/=board(7,1);

cout << " The final board's data\n";
cout << " _______________________\n\n";

board.PrintArray(); //prints out new board

cout << endl;

return 0;
}

void setcolor(unsigned short color) //color function
{
HANDLE hCon = GetStdHandle(STD_OUTPUT_HANDLE);
SetConsoleTextAttribute(hCon,color);
}
______________________________________________________________________________________

Joisme wrote:
for (int rows = 0; rows <=8; rows++) //propogate initial board
{
for (int columns = 0; columns <=8; columns++)

don't these loops overrun the end of the array? they go from 0 to 8, but there is no array[8][8] .

-c

There's one easy way to prove the effectiveness of 'letting the market decide' when it comes to environmental protection. It's spelt 'S-U-V'.
--Holgate, from Plastic

Smaller Animals Software

yeah there is...look in the class.....

private:
int array[8][8]; //the 8x8 array

Is that what you are referring to???

Jo

your declaration gives you 8x8 values, not 9x9. your loops are spanning 9x9 values.

-c

There's one easy way to prove the effectiveness of 'letting the market decide' when it comes to environmental protection. It's spelt 'S-U-V'.
--Holgate, from Plastic

Smaller Animals Software

I see. Do you think the program would still run properly and give the correct values in the table/array if the loop was incorrect? Do you think that would cause the crash at the end? I will try mess with that coding.

there is no telling what you will get if you start writing off the end of an array. you could be writing into anything...

-c

There's one easy way to prove the effectiveness of 'letting the market decide' when it comes to environmental protection. It's spelt 'S-U-V'.
--Holgate, from Plastic

Smaller Animals Software

Remember that arrays in C/C++/C#/Java are indexed from 0 to size-1. So by reading the element at position 8, you're actually reading the 9th element. And your array only has room for 8.

Regards,
Alvaro

Well done is better than well said. -- Benjamin Franklin
(I actually prefer medium-well.)

you guys are awesome......that totally fixed it.

I knew that arrays started at 0 but i was sloppy in the coding and then didn't even think, since it worked properly, that the crash at the end was because of the loop...never entered my mind...

thanks a bunch..that fixed it....

Jo-Anne Big Grin | :-D

Also don't use magic numbers, e.g. int array[8][8]
try #define MY_ARRAY_SIZE 8 (or const int MY_ARRAY_SIZE = 8)
array[MY_ARRAY_SIZE][MY_ARRAY_SIZE]

then, for(i = 0; i < MY_ARRAY_SIZE; i++)

I'm writing an MFC app that uses a word 200 object via automation. Of course this requires me to give the type library of word9 as well as word9 hearder files. Will this app work if I distribute it and the customers have a word version that is greater than 2000 such as Word XP or one lower such as Word 97? I don't have these office versions so anyone with MFC automation experience with Office , an answer would be greatly apprciated by me.

Thanks in advance,

Martin.

It depends what interfaces you use. We've had no trouble using apps built against Office97 and 2000 on systems with 97, 2000, and XP installed. But we stick to the functionality available in Office97.

(and of course, there's no guarantee that MS won't break compatibility at some point in the future... Wink | ;)

)

---

Shog⁹
This is my December
These are my snow covered dreams
This is me pretending
This is all I need...

i am using xp professional.
i have created a gina dll that will call the orginal msgina function.

question-

when the window perform logoff procedure then the window with this message should appears
Press ctrl+alt+del (like in WINDOWS NT OR 2000)

I dont how to implement that little logic.
Can any body tell which function of gina dll called when the system is in loggoff state and and
the dialogbox with this title
--------------------
Log On to Windows
--------------------

did not appears so that i can call the function that create a dialogbox
(having message Press CTRL+ALT+DEL)

For this purpose cany any body tell which function of gina dll or winlogin.exe creat a
message(Press CTRL+ALT+DEL)

and where i have to call that function?
so that after logoff procedure
the dialogbox with this title
--------------------
Log On to Windows
--------------------
did not appear.
//////////////////////////////////////////////////////////////////////////
i have halted the CTRL+ALT+DEL by using this simple code in gina dll
but there is still a problem and that is
when i press CTRL+ALT+DEL the desktop window and its child windows shakes
it gives the behaviour as i perform refresh event.
but i did not want that for my running application at that time.
nothing should heapen when user press CTRL+ALT+DEL?
how to do that ?
i have spent a lot of houres but could not sucessed yet.
can any body help me in this regard.

int
WINAPI
WlxLoggedOnSAS(
    PVOID           pWlxContext,
    DWORD           dwSasType,
    PVOID           pReserved)
{

	if(dwSasType==WLX_SAS_TYPE_CTRL_ALT_DEL)
	return WLX_SAS_ACTION_NONE;
	else
	return GWlxLoggedOnSAS( pWlxContext, dwSasType, pReserved );
}

r00d0034@yahoo.com

Could someone write this guy a GINA dll ? He's so obviously lost. Someone take pity on him and me, please.

Christian

No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002

C# will attract all comers, where VB is for IT Journalists and managers - Michael P Butler 05-12-2002

Again, you can screw up a C/C++ program just as easily as a VB program. OK, maybe not as easily, but it's certainly doable. - Jamie Nordmeyer - 15-Nov-2002

Christian Graus wrote:
Could someone write this guy a GINA dll ? He's so obviously lost. Someone take pity on him and me, please.

obsolete

Next he will ask for a Marta dll Smile | :)

I just wonder why you have given up to complain about GINA DLL instead of MSGINA DLL Confused | :confused:

I don't think this is a serious possesion, and the evil most likely comes from your hand. Colin J Davies, The Lounge

Q-1who to get window directory path programatically?

Q-2if i call BlockInput(true)
and then i want to use postmessage or sendmessages for keyboard and mouse
will these messages works?

r00d0034@yahoo.com

imran_rafique wrote:
Q-1who to get window directory path programatically?

You look up the VC++ Help which tells you about: GetWindowsDirectory()

imran_rafique wrote:
Q-2if i call BlockInput(true)
and then i want to use postmessage or sendmessages for keyboard and mouse
will these messages works?

There would have to be a very, very good reason to use a function like BlockInput(). Surely you can simply test whether SendMessage etc. work. I would assume the will. The doc's don't indicate otherwise.

Neville Franks, Author of ED for Windows. www.getsoft.com
Make money with our new Affilate program

i am using msgina.dll feature of
Automatic Logon
This feature allows a Windows NT system to log on a user automatically every time the system boots, by using default information.
for this purpose i know the use of following registry keys

1-AutoAdminLogon
2-AutoLogonCount
3-DefaultUserName
4-DefaultDomainName
5-DefaultPassword

i am sucessfully using this when the system boot.
platform is window xp

but problem is that when i logoff(afterlogon) the window then the
Dialog box with title
------------------
LOG ON TO WINDOWS
-----------------
appears although the registery keys having values

AutoAdminLogon is 1.
AutoLogonCount is greater then 0 or did not present.
DefaultUserName is correct.
DefaultDomainName is correct.
DefaultPassword is correct.

what i have to do hear in code of gina dll so that
Windows NT system log on a user automatically against a perticuler SAS event(say ctr+alt+del or any other)?

r00d0034@yahoo.com