Migrating processes - C / C++ / MFC Discussion Boards

DaFrawg2-Jan-04 4:33

2-Jan-04 4:33

"use the CBitmap class from the MFC to load *.bmp files"

But how exactly? I see no functions in that class or any parent classes that could do that...

firewall project

gildan20201-Jan-04 2:23

gildan2020

1-Jan-04 2:23

Hi, I'm doing a simple packet filtering firewall as my final year project. I'm at the early stages of my project and I've already studied about the types of internet firewall out there and other security overview information.

So, I need detailed information on how to build a firewall. Can you guys point me to good tutorials/information that might help? I'm using Visual C++ to code and MFC to create the GUI. Also, since I'm doing it in a Windows platform, I've heard that I need some sort of a driver, can you help explain this part as well?

Thx,
gildan2020

Re: firewall project

valikac1-Jan-04 5:44

valikac

1-Jan-04 5:44

For the winsock part of the design, I recommend this book.

Network Programming for Microsoft Windows, Second Edition by Anthony Jones and Jim Ohmund.

Kuphryn

Re: firewall project

gildan20201-Jan-04 6:12

gildan2020

1-Jan-04 6:12

yup, thx for da tip

i remember that i've to deal with some kernel-level stuffs for my firewall. any ideas on that?

Re: firewall project

Hauptman(n)1-Jan-04 6:14

Hauptman(n)

1-Jan-04 6:14

http://www.amazon.co.uk/exec/obidos/ASIN/020163466X/rpanetwork-21/202-3867982-5617414

then
http://www.rpanetwork.co.uk/wp/fw.rhtm
(this was a one minute search @ google )

another tip:
don't use the MFC Socket Class for Socket Programming, because under the hood, there are Win16 Functions(in version 4.x, i don't know, if this is in version 7 also so)

scio me nihil scire
My OpenSource(zlib/libpng License) Engine:
http://sourceforge.net/projects/rendertech
Its incurable, its a Pentium division failure.

Re: firewall project

gildan20201-Jan-04 6:50

gildan2020

1-Jan-04 6:50

hmm..bout dat link to "Firewalls and Internet Security: Repelling the Wily Hacker" book.

i think i've read a similar book by Elizabeth D. Zwicky entitled "Building Internet Firewalls". do you think there's any difference between the two?

i've pretty much covered the necessary basics of firewall. so u know wat i should read for really complex stuff bout firewall?

thx,
gildan2020

Re: firewall project

Hauptman(n)1-Jan-04 7:53

Hauptman(n)

1-Jan-04 7:53

sry

i have no experience with this book

scio me nihil scire
My OpenSource(zlib/libpng License) Engine:
http://sourceforge.net/projects/rendertech
Its incurable, its a Pentium division failure.

Migrating processes

zichun31-Dec-03 23:21

zichun

31-Dec-03 23:21

Is there any way where one can migrate a process / thread from one computer to another connected computer and have the results returned to the first computer for load balancing?

Take for example I run two extreme memory-intensive program, minesweeper and solitair, and the program will migrate one of the processes to the other computer (which is running nothing) for better performance.

If this is not possible on pre-programmed applications like those stated above, then is there a way where new applications can be written such that this is possible?

thanks in advance

Re: Migrating processes

alex.barylski1-Jan-04 13:56

alex.barylski

1-Jan-04 13:56

zichun wrote:
If this is not possible on pre-programmed applications like those stated above

Probably possible but would require alot of work...

zichun wrote:
there a way where new applications can be written such that this is possible?

I believe thats what SETI project does
http://setiathome.ssl.berkeley.edu/[^]

Cheers Smile | :)

The word of the day is legs, let's go back to my house and spread the word Poke tongue | ;-P

Spying on a file

Mazdak31-Dec-03 22:43

Mazdak

31-Dec-03 22:43

Therre are some tools that watch files and can get if the file change or not(I know how to do it),I want to know is that possible to get the changes for the file too? For example what is written to the file or the location of it or what is read from it?
I want to write a lock for my software and want to keep some information in a file,and now want to know if it is possible to spy it in this way?

Mazy

No sig. available now.

How to get the "Internet Explorer_TridentCmboBx" element handler

TAUHIDUL ISLAM31-Dec-03 20:21

TAUHIDUL ISLAM

31-Dec-03 20:21

I got the "Internet Explorer_TridentCmboBx" element in to the HTML document.
But I can not expand the element from the MFC application.
Please help me to expand the "Internet Explorer_TridentCmboBx" from the MFC application

TAUHID

VC++ 6.0 and XP

pranavamhari31-Dec-03 20:17

pranavamhari

31-Dec-03 20:17

hi,

I can't debug apps using VStudio 6.0 under XP. Do i need to install any updates to VC 6 ? If so, please give the url

regards
hari

Hari Krishnan

Re: VC++ 6.0 and XP

Michael Dunn31-Dec-03 20:20

Michael Dunn

31-Dec-03 20:20

Make sure you have SP 5. Other than that, there's nothing special you need to do to use VC 6 on XP.

--Mike--
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Re: VC++ 6.0 and XP

pranavamhari31-Dec-03 20:44

pranavamhari

31-Dec-03 20:44

Many thanks Mike

Hari Krishnan

From MTA to STA

Prakash Nadar31-Dec-03 18:40

Prakash Nadar

31-Dec-03 18:40

Hi,
I made an atl server and added few interfaces, accidently my friend added an interface which is MTA, now i know MTA will fail in this design. Hence i want to convert it to STA. Is there any way to convert the existing interface from MTA to STA with minimum effort?
Thank you very much.
Prakash.

My God is more powerfull Than Your God. (the line that divides the world)

Re: From MTA to STA

Michael Dunn31-Dec-03 20:19

Michael Dunn

31-Dec-03 20:19

I assume you're talking about an implementation here, not interfaces. Interfaces are just a collection of methods.
In the inheritance list of the C++ class implementing the interface, change any occurence of CComMultiThreadModel to CComSingleThreadModel. In the RGS file, change the ThreadingModel value to Apartment.

--Mike--
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Re: From MTA to STA

Prakash Nadar1-Jan-04 16:07

Prakash Nadar

1-Jan-04 16:07

Yeah i was talking about the implementation of the interface and not the interface itself...

Thanx.
and wish you a happy new year.

My God is more powerfull Than Your God. (the line that divides the world)

A Doubt

Rane31-Dec-03 16:05

Rane

31-Dec-03 16:05

can anyone helpme how to pass query values dynamically.
(e.g)
cin>>a;
cin>>b;
char szStr1[100]="Insert into region(regionId,RegionDescription)Values(????,????)"

In what format I should supply the values (i.e) the values of a,b.(plz rewrite the
above statement)

Re: A Doubt

Prakash Nadar31-Dec-03 18:35

Prakash Nadar

31-Dec-03 18:35

you can put construct the query this way..

<br />
cin>>a;<br />
cin>>b;<br />
char szStr1[100];<br />
sprintf(szStr1,"Insert into region(regionId,RegionDescription)Values(%d,%d)",a,b);<br />

My God is more powerfull Than Your God. (the line that divides the world)

Re: A Doubt

Michael Dunn31-Dec-03 19:48

Michael Dunn

31-Dec-03 19:48

#include <sstream>
 
int a,b; // assume initialized from cin 
std::ostringstream strm;
std::string s;
  
  strm << "Insert into region(regionID, RegionDescription)Values(" << a
       << "," << b << ")" << std::ends;
  s = strm.str();

--Mike--
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problem with ListCtrl display

Angel Kid31-Dec-03 15:14

Angel Kid

31-Dec-03 15:14

Hi guys,I have a question
I used Access2000 to build a database,there is a Field named “Price”,it's type is money.
In VC++ ,I used ADO to access this database.
I wanna display the value of this field in my listctrl,the code as follow:

_variant_t Holder;<br />
CString str;<br />
       	<br />
Holder = theApp.m_pADOSet->GetCollect("Price");<br />
	    <br />
if ( VT_NULL==Holder.vt ) str="N/A";<br />
		<br />
else str.Format("%.2f", Holder.dblVal);<br />
        <br />
m_ListCtrl.SetItemText(i, 7, str);<br />

listctrl display 0.00 in this field.but in my table,it's value is 3.00,could anyone tell me what I can do? thanks

===============
YES, I am here.
===============

Re: problem with ListCtrl display

Michael Dunn31-Dec-03 19:50

Michael Dunn

31-Dec-03 19:50

%f is the format specifier for a float, use %lf for a double.

--Mike--
Ericahist | CP SearchBar v2.0.2 | Homepage | 1ClickPicGrabber New v2.0! | RightClick-Encrypt
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going to post antialiasing article

Roman Nurik31-Dec-03 12:56

Roman Nurik

31-Dec-03 12:56

sometime soon look for an antialiasing article... as i've just played around with it and gotten it to work pretty well for straight lines and the concept should work for any shapes

r -€

menu bar

brian scott31-Dec-03 12:21

brian scott

31-Dec-03 12:21

Does anyone know if there is a way to reset the colour of a menu bar to the same as the background of a dialog? To set dialog background colour, one uses SetDialogBkColor(). With a menu in the dialog, one gets an ugly grey stripe across the top. OK! I know I'm sick and demented and should be using CFrameWnd, but I LIKE dialogs!! And, for a newcomer, they're a damn sight easier to use!! You would be making 2004 start pleasantly for me!!!

Happy New Year

The fool who knows that he is a fool is truly wise.
The fool who thinks that he is wise is truly a fool.

Dhamapadda - Sayings of the Buddha (slightly modified!)

Brian Confused | :confused:

Using SetFont() on a button control

shultas31-Dec-03 11:32

shultas

31-Dec-03 11:32

Hello all.

I am trying to change the text/style of my button(s). Instead of the default, I want to make them Tahoma, 14pt. The code that I am using to do this is listed below. What is happening is this: If I put this code in the OnInitDialog() or OnPaint(), it somewhat works. The button will look different than the other ones, but now how I am specifying it to look. No matter what nHeight size that I use, it initializes to this same size every time, and bold. But, the funny thing is that the same exact code when used inside an OnBnClickedButton1() changes the font for that button text to exactly what I want. I am wondering why this same code is not working properly in the OnInitDialog() / OnPaint() ??

Also: I am wondering if there is a way to set the default font for the dialog buttons or set the font / size for the button text with the resource editor (instead of having to have code to "change" the font of the button) ?

Thanks

CFont ListBoxFont;
ListBoxFont.CreateFont(
14, // nHeight
0, // nWidth
0, // nEscapement
0, // nOrientation
FW_NORMAL, // nWeight
FALSE, // bItalic
FALSE, // bUnderline
0, // cStrikeOut
ANSI_CHARSET, // nCharSet
OUT_DEFAULT_PRECIS, // nOutPrecision
CLIP_DEFAULT_PRECIS, // nClipPrecision
DEFAULT_QUALITY, // nQuality
DEFAULT_PITCH | FF_SWISS, // nPitchAndFamily
"Tahoma"); // lpszFacename
m_button1.SetFont(&ListBoxFont,TRUE);

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