C / C++ / MFC

Andreas Saurwein11-Dec-02 2:22

Andreas Saurwein

11-Dec-02 2:22

I think Michael Dunn's Shell Extensions[^] series might help.

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

Michael.Weiss11-Dec-02 2:32

Michael.Weiss

11-Dec-02 2:32

The tutorials of Michael Dunn are to add a small View in the popup menu.

I want to add a small view on the left of the file list if you select web view
mode in the windows file explorer.

Andreas Saurwein11-Dec-02 4:55

Andreas Saurwein

11-Dec-02 4:55

I know. Just pointing the general direction. I think that IExtractImage[^] might be the one.

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

Michael.Weiss13-Dec-02 2:38

Michael.Weiss

13-Dec-02 2:38

Ok nice,
But i need shobjidl.hto use that interface do you know where I can find it?

Thanks a lot Michael

Why no OnSetFont handler in CEdit?

Andreas Saurwein13-Dec-02 3:54

Andreas Saurwein

13-Dec-02 3:54

Platform SDK, Core SDK. You'll need to download from MS. Click here[^]

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

Anonymous10-Dec-02 18:24

Re: Why no OnSetFont handler in CEdit?

10-Dec-02 18:24

Hi,
I want to catch WM_SETFONT messages in a CEdit control.

Unfortunately the class wizard doesn't offer me this message. Is there any reason? If not, how does my handler look like? hm there is no default handler CEdit::OnSetFont(). please help.

Roger Allen11-Dec-02 3:01

Roger Allen

11-Dec-02 3:01

If you right-click your class and select "Add window message handler" and from there change the type of filtering in the bottom right to "Window", I think you will have access to the option you need.
I can't check as class wizard is bust on my PC at the moment.

Roger Allen
Sonork 100.10016

In case you're worried about what's going to become of the younger generation, it's going to grow up and start worrying about the younger generation. - Roger Allen, but not me!

Re: Why no OnSetFont handler in CEdit?

Anonymous11-Dec-02 6:19

How do I specify CView's size?

11-Dec-02 6:19

thanks, but WM_SETFONT is still *not* listed. I tried all options

Anonymous10-Dec-02 17:41

Re: SQL Server ODBC with ADO

10-Dec-02 17:41

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:

...

SQL Server ODBC with ADO

Exceter10-Dec-02 16:55

Exceter

10-Dec-02 16:55

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

Anonymous10-Dec-02 17:53

Re: SQL Server ODBC with ADO

10-Dec-02 17:53

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

carrie10-Dec-02 21:11

carrie

10-Dec-02 21:11

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.

string replace function?

trustno110-Dec-02 15:00

trustno1

10-Dec-02 15:00

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.

Re: string replace function?

carrie10-Dec-02 15:09

carrie

10-Dec-02 15:09

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.

Re: string replace function?

trustno110-Dec-02 17:27

trustno1

10-Dec-02 17:27

thx for the info, carrie. Wink | ;)

program crashes after execution??? why?

Joisme10-Dec-02 14:17

10-Dec-02 14:17

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);
}
______________________________________________________________________________________

C^hris L^osinger10-Dec-02 14:21

C^hris L^osinger

10-Dec-02 14:21

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

Joisme10-Dec-02 14:23

10-Dec-02 14:23

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

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

Is that what you are referring to???

Jo

C^hris L^osinger10-Dec-02 14:29

C^hris L^osinger

10-Dec-02 14:29

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

Joisme10-Dec-02 14:33

10-Dec-02 14:33

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.

C^hris L^osinger10-Dec-02 14:35

C^hris L^osinger

10-Dec-02 14:35

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

Alvaro Mendez10-Dec-02 14:33

Alvaro Mendez

10-Dec-02 14:33

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.)

Joisme10-Dec-02 14:41

10-Dec-02 14:41

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