C / C++ / MFC

how to block IPv6 traffic on Win Xp

10-Apr-08 23:52

You can also use of HBITMAP without CBitmap.

Ather Zaidi9-Apr-08 5:13

Ather Zaidi

9-Apr-08 5:13

Hi all,
I intend to filter IPv6 packets.
I have already succeeded in capturing and decoding the packets n a human readable format.
Now i want to block some unwanted IPv6 traffic
say:
I do Win XP to drop packets with destination address A and port A1 and source address B and port B1
how can I do this?
will manipulating the IPv6 routing tables on my machine work?

I did
C:> netsh
netsh> interface ipv6
interface ipv6> show routes

this showed me some routes for IPv6 traffic going out of my machine,can i manipulate them to block certain traffic.

Is there any other way of doing it, are there some libraries,classes, methods that can help filtering IPv6 packets.

please help
thanks and regards
Ather

Re: how to block IPv6 traffic on Win Xp

led mike9-Apr-08 5:51

led mike

9-Apr-08 5:51

Don't cross post.

led mike

Leaning C++, annoying compile/link error

Jan Sommer9-Apr-08 5:03

Jan Sommer

9-Apr-08 5:03

I've managed to compile and run all the samples in the book so far, but all the sudden this code comes up and gives me nasty headaches.

When i'm trying to compile the code below everything goes fine until the compiler tries to link it.

Here's the error i get:

    cd /Users/summer/Documents/C++/xcodeproject/ex<br />
    /Developer/usr/bin/g++-4.0 -o /Users/summer/Documents/C++/xcodeproject/ex/build/Debug/ex -L/Users/summer/Documents/C++/xcodeproject/ex/build/Debug -F/Users/summer/Documents/C++/xcodeproject/ex/build/Debug -filelist /Users/summer/Documents/C++/xcodeproject/ex/build/ex.build/Debug/ex.build/Objects-normal/i386/ex.LinkFileList -arch i386 -mmacosx-version-min=10.5 -isysroot /Developer/SDKs/MacOSX10.5.sdk<br />
Undefined symbols:<br />
  "vtable for Kvadrat", referenced from:<br />
      __ZTV7Kvadrat$non_lazy_ptr in main.o<br />
ld: symbol(s) not found<br />
collect2: ld returned 1 exit status<br />
	  "vtable for Kvadrat", referenced from:<br />
	      __ZTV7Kvadrat$non_lazy_ptr in main.o<br />
	ld: symbol(s) not found<br />
	collect2: ld returned 1 exit status

And here's the code:

#include <iostream>
using namespace std;

class Form
{
public:
	Form() {}
	virtual ~Form() {}
	virtual long HentAreal() { return -1; }
	virtual long HentOmkreds() { return -1; }
	virtual void Tegn() {}
};

class Rektangel : public Form
{
public:
	Rektangel(int laengde, int bredde):
		densLaengde(laengde), densBredde(bredde) {}
	virtual ~Rektangel() {}
	virtual long HentAreal() { return densLaengde * densBredde; }
	virtual long HentOmkreds() { return 2*densLaengde + 2*densBredde; }
	virtual int HentLaengde() { return densLaengde; }
	virtual int HentBredde() { return densBredde; }
	virtual void Tegn();
private:
	int densBredde;
	int densLaengde;
};

void Rektangel::Tegn()
{
	for (int i = 0;i < densLaengde;i++)
	{
		for (int j = 0;j < densBredde;j++)
			cout << "x";
			
		cout << "\n";
	}
}

class Kvadrat : public Rektangel
{
public:
	Kvadrat(int laengde);
	Kvadrat(int laengde, int bredde);
	~Kvadrat();
	long HentOmkreds() { return 4 * HentLaengde(); }
};

Kvadrat::Kvadrat(int laengde):
	Rektangel(laengde, laengde)
{}

int main()
{
	cout << "Do stuff";
	return 0;
}</iostream>

When i remove

Kvadrat::Kvadrat(int laengde):<br />
	Rektangel(laengde, laengde)<br />
{}

It compiles without problems. But i want to create a rectangel upon creation of a square! (rektangel == rectangel && kvadrat == square in danish)

David Crow9-Apr-08 5:24

David Crow

9-Apr-08 5:24

You need a body for Kvadrat's destructor.

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Jan Sommer9-Apr-08 5:39

Jan Sommer

9-Apr-08 5:39

wow.. that was too simple. i feel stupid.

thanks!

CPallini9-Apr-08 5:39

CPallini

9-Apr-08 5:39

you forgot:

Rektangel class default constructor (declaration & definition).
Kvadrat(int laengde, int bredde) constructor definition.
Kvadrat destructor definition

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

Rajesh R Subramanian9-Apr-08 5:44

Rajesh R Subramanian

9-Apr-08 5:44

You beat me to it, you addict. Smile | :)

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP

Please verify the function

CPallini9-Apr-08 5:48

CPallini

9-Apr-08 5:48

Rajesh R Subramanian wrote:
You beat me to it, you addict.

Shhhhhhhhhh, don't spread such rumors. Wink | ;)

Microsoft Sam

codeinelogic9-Apr-08 4:40

codeinelogic

9-Apr-08 4:40

hi i was just wondeing if anyone knew how to use the mircosoft sam voice just to make a fun little program, an example would be say an edit box for user input then a button to have the computer speak the words, i found this documentation on mircosoft but my compiler, Borland 6, had some problems with the included header files.. ick. http://msdn2.microsoft.com/en-us/library/ms717065(VS.85).aspx[^] thats the microsoft page, any help would be appricated

thanks in addvance

sorry about the crappy spelling
i ned more skooling WTF | :WTF:

Re: Microsoft Sam

David Crow9-Apr-08 4:48

David Crow

9-Apr-08 4:48

codeinelogic wrote:
...i found this documentation on mircosoft but my compiler, Borland 6, had some problems with the included header files..

And what did you think would happen?

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

bibhakar9-Apr-08 2:53

bibhakar

9-Apr-08 2:53

Problem Description:- I want to show a message when any windows is closing, but only when user clicks on the right most X symbol of the window, not with ALT-F4 key press and any other method like for example file->exit.
I have one working solution with me but just wanted to know whether the function which i am using is correct or not. Basically wanted to know about the GetAsyncKeyState because i read this in MSDN
-------
Although the least significant bit of the return value indicates whether the key has been pressed since the last query, due to the pre-emptive multitasking nature of Windows, another application can call GetAsyncKeyState and receive the "recently pressed" bit instead of your application. The behavior of the least significant bit of the return value is retained strictly for compatibility with 16-bit Windows applications (which are non-preemptive) and should not be relied upon.
--------
can anybody suggest me that GetAsyncKeyState is fine or any other function on which we can rely upon

Here is the code snippet:

LRESULT CALLBACK WndProcedure(HWND hWnd, UINT Msg,WPARAM wParam, LPARAM lParam)
{
LRESULT result=0L;
int k=0;
switch(Msg)
{
case WM_NCLBUTTONDOWN:
if (wParam!=HTCLOSE) // allow clicks on system menu to continue and proceed
{
DefWindowProc(hWnd, Msg, wParam, lParam);
return 0;
}
GetAsyncKeyState(VK_LBUTTON);
break;

case WM_NCLBUTTONUP:
if ((int)wParam ==HTCLOSE && !(GetAsyncKeyState(VK_LBUTTON)))
{
k=MessageBoxA(NULL, "Do u wish to close ", "getasynckeystate", MB_YESNO);
if (k==IDYES)
{
PostMessage(hWnd, WM_CLOSE, 0, 0L);
return 0;
}
else
{
DefWindowProc(hWnd, Msg, wParam, lParam);
}

}
DefWindowProc(hWnd, Msg, wParam, lParam);
break;

case WM_DESTROY:PostQuitMessage(WM_QUIT);// then close it
break;
default : return DefWindowProc(hWnd, Msg, wParam, lParam);// Process the left-over messages
}
return result;
}

Bibhakar Ranjan

Re: Please verify the function

Iain Clarke, Warrior Programmer10-Apr-08 0:08

Iain Clarke, Warrior Programmer

10-Apr-08 0:08

1/ Use the pre tags as the posting guidelines at the top of the forum say - your code was unreadable until I pasted it into VC++ and auto formatted it. And I only did that because I'm waiting for a phone call. Most people aren't this nice - I'm not normally.

2/ Your actual question. Looking at the page for GetASyncKeyState...

However, it checks on the state of the physical mouse buttons, not on the logical mouse buttons that the physical buttons are mapped to.

So from the very start your code is not right - what about a left handed user?

Also:

due to the pre-emptive multitasking nature of Windows, another application can call GetAsyncKeyState and receive the "recently pressed" bit instead of your application

So, you're not safe if another program uses the function either. Basically, this is a 16bit cooperative multitasking function, of no use in any program written after 1998.

I'm assuming you're using it to make sure that when you look at a WM_NCLBUTTONUP message, it had an earlier down?

I think you'll need to monitor the following messages:
WM_NCLBUTTONDOWN:
As you've done, but set a flag saying you're now interested.

WM_CAPTURECHANGED:
If the "I'm interested" flag is set, clear it.

WM_NCLBUTTONUP:
If your flag is set, post a "do my custom quite message box" message, and handle that, otherwise pass on the message.

That should be a bit safer for you, I hope! I've include the capture changing message, as I'm pretty sure it will help, in case someone clicks down on the X, moves the mouse away, then let's go of the button. Set a breakpoint and see if I'm a genius, or talking rubbish.

Good luck!

Iain.

Iain Clarke appears because ^CPallini still cares.

Bitmap not getting loaded

sheetal_069-Apr-08 2:24

9-Apr-08 2:24

Hi,

I have written a code like this:

.h file
=======

class CPressuresResultsPropertyPage : public CPropertyPage
{
CBitmapButton m_BitMapButton;
};

.cpp file
=========
BOOL CPressuresResultsPropertyPage::OnInitDialog()
{
CPropertyPage::OnInitDialog();

m_BitMapButton.AutoLoad(IDC_ROTATE,this);

}

After VS2005 conversion the button is not loading the bitmap IDC_ROTATE.Before that it was working properly.

If the dialogs immediate base class is CDialog then it is loading the bitmap.Eventhough CPropertyPage is inherited from CDialog
the bitmap is not getting loaded.

Thanks.

Sarath C9-Apr-08 4:01

Sarath C

9-Apr-08 4:01

are you sure the bitmap ID is valid?

Please break into CBitmapButton::AutoLoad function in debug mode and check what is the strange thing happening?

-Sarath.
"Great hopes make everything great possible" - Benjamin Franklin

My blog - Sharing My Thoughts, An Article - Understanding Statepattern

sheetal_069-Apr-08 18:18

9-Apr-08 18:18

yes,bitmap id is valid.If i go into Autoload,it is returning success.

Please help.It is urgent.

Thanks.

Hamid_RT11-Apr-08 0:23

11-Apr-08 0:23

Did you set bitmap to true of preperty window of Button?

sheetal_0613-Apr-08 18:47

13-Apr-08 18:47

Hi,

Thanks for your suggestion.

Bitmap is set to false.That way it is working before VS2005 conversion.Not only that if we make the base class CDialog then tha bitmap is coming.CPropertyPage also has tha base class as CDialog.

But as per the design i cannot chabge the base class to CDialog.

Please suggest a solution.

Regards.

Hamid_RT13-Apr-08 19:45

13-Apr-08 19:45

You must set bitmap to true if you want bitmap on the button but also yo can use of OwnerDraw for set bitmap and some effects to button.

sheetal_0613-Apr-08 20:06

13-Apr-08 20:06

Hi,

We are settignowner draw to true and then trying to load the bitmap on to the button.It was working properly before VS2005.

Please help.

Thanks.

Hamid_RT14-Apr-08 21:42

14-Apr-08 21:42

Does it work on the vs2003 and not work at vs2005?

sheetal_0615-Apr-08 0:03

15-Apr-08 0:03

In Visual Studio 6.0 it was working.In Visual Studio 2005 it is not working.

Hamid_RT15-Apr-08 0:14