Process memory access - C / C++ / MFC Discussion Boards

Re: Visual Studio 2005 and Visual Studo 6 - can they be installed side-by-side?

devvvy30-Aug-07 23:58

devvvy

30-Aug-07 23:58

Great thanks

Why Can't I download the source code

tanhongwen30-Aug-07 23:15

tanhongwen

30-Aug-07 23:15

Why Can't I download the source code?
I want to download the follow source code: http://www.codeproject.com/dialog/skinstyle.asp
I hope give me a reply.
thanks very muce!

Re: Why Can't I download the source code

toxcct30-Aug-07 23:35

toxcct

30-Aug-07 23:35

http://www.codeproject.com/dialog/SkinStyle/SkinStyle_src.zip[^]

next time you have some troubles with an article, a better place to ask a related question is the forum at the bottom of the article itself...

[VisualCalc][Binary Guide][CommDialogs] | [Forums Guidelines]

Re: Why Can't I download the source code

David Crow31-Aug-07 3:45

David Crow

31-Aug-07 3:45

tanhongwen wrote:
I want to download the follow source code: http://www.codeproject.com/dialog/skinstyle.asp

So did you bother to click the Download source files - 175 Kb link?

"A good athlete is the result of a good and worthy opponent." - David Crow

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

Slider Control, Force Ticks

TheShihan30-Aug-07 22:01

TheShihan

30-Aug-07 22:01

Hi,

I've put a slider control into my window and set a range (min/max). I've also set a TickFreq.

The Ticks are also correctly displayed, but it is still possible to drag the thumb to any position on the slider, not only where the ticks are (btw: auto ticks is on).

I've found not method to force the slider use only the positions where the ticks are. Is there any? Or do I have to code that stuff for myself.. ( I cannot believe that Smile | :)

).

Thx, Shi

Re: Slider Control, Force Ticks

Iain Clarke, Warrior Programmer30-Aug-07 23:32

Iain Clarke, Warrior Programmer

30-Aug-07 23:32

If you had a slider from 0 to 100, and ticks every 10, then the slider will give the user 100 positions it can be.

Or, set a slider from 0 to 10, tick at intervals of 1, then just multiply the position by 1 internally.

Tada!

Iain.

Re: Slider Control, Force Ticks

chandu00431-Aug-07 0:27

chandu004

31-Aug-07 0:27

nice and the only idea.

Process memory access

Waldermort30-Aug-07 21:55

Waldermort

30-Aug-07 21:55

Hopefully somebody might be able to help me with this before the weekend sets in.

I'm trying to manipulate the memory of another process. So far I can change the protection, read and write data. But two of the APIs VirtualAllocEx() and VirtualFreeEx() fail nomatter what I try to do.

I am doing nothing out of the ordinary, I simply create a process in suspended state, get the base address of it's memory and manipulate it; similar to most code injection articles.

Is there anything special I should be doing before I use these?

Re: Process memory access

jhwurmbach30-Aug-07 22:16

jhwurmbach

30-Aug-07 22:16

WalderMort wrote:
I'm trying to manipulate the memory of another process.

Training for the black-hat-olympics? Poke tongue | ;-P

Whatever you do, it *should* not work. If it does, it is a temporary faiure in Windows security.

Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words

Re: Process memory access

Randor 31-Aug-07 1:25

Randor

31-Aug-07 1:25

You may need to enable debug privledges.

Something like this:

LUID luid;
HANDLE hToken;
TOKEN_PRIVILEGES tp, otp;
DWORD dwSize = sizeof(TOKEN_PRIVILEGES);
if(OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY,&hToken))
{
	if(LookupPrivilegeValue(NULL,SE_SYSTEMTIME_NAME,&luid))
	{
		SecureZeroMemory(&tp,sizeof(tp));
		tp.PrivilegeCount = 1;
		tp.Privileges[0].Luid = luid;
		tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
		if (AdjustTokenPrivileges(hToken, FALSE, &tp, sizeof(TOKEN_PRIVILEGES),&otp, &dwSize))
		{

//TRY YOUR MEMORY WRITING HERE
//NO GUARANTEES, -DAVE
		}
	}
	CloseHandle(hToken);
}

Best regards,
-David Delaune

Re: Process memory access

Waldermort31-Aug-07 1:35

Waldermort

31-Aug-07 1:35

Sorry, I forgot to mention I had already done that.

Through trial and error, I have found that I must let the system decide where to allocate the memory. Though calls to VirtualAllocEx() with MEM_DECOMMIT still fail, as does VirtualFreeEx(). I'm guessing this must be some type of security feature and only the caller to VirtualAlloc may de-commit or free.

Unique ID of a computer.

chandu00430-Aug-07 21:27

chandu004

30-Aug-07 21:27

has any body worked on retrieving the unique ID of a computer. other than LAN card ID.
please suggest.

Re: Unique ID of a computer.

Nishad S30-Aug-07 21:31

Nishad S

30-Aug-07 21:31

You can use hard disk drive volume number.

- NS -

Re: Unique ID of a computer.

chandu00430-Aug-07 21:35

chandu004

30-Aug-07 21:35

thank you
how to retrieve it.

Re: Unique ID of a computer.

Nishad S30-Aug-07 21:37

Nishad S

30-Aug-07 21:37

See GetVolumeInformation

- NS -

Re: Unique ID of a computer.

Russell^'30-Aug-07 21:56

Russell^'

30-Aug-07 21:56

It isn't 'Unique' ... it can be changed formatting the HDD, or programmatically
Frown | :(

Russell

Re: Unique ID of a computer.

Nishad S30-Aug-07 22:15

Nishad S

30-Aug-07 22:15

That's true. But it can be considered as unique, for creating software licenses.

- NS -

Re: Unique ID of a computer.

Waldermort30-Aug-07 22:24

Waldermort

30-Aug-07 22:24

This is unwise as any change to that volume would render the app un-runnable. There are any number of ways in which this ID could be changed. If you intend to use any ID from a PC, always take it from a physical item.

Re: Unique ID of a computer.

Nishad S30-Aug-07 22:55

Nishad S

30-Aug-07 22:55

HDD ID was used for this purpose when I was coding for DOS applications (many years before). May be due to that my first choice is HDD. Big Grin | :-D

I have no idea whether the mother board ID, etc is available at that time. Do you have any knowledge regarding this?

- NS -

Re: Unique ID of a computer.

Russell^'30-Aug-07 22:28

Russell^'

30-Aug-07 22:28

Of course you can,
but we not need to be an expert haeker to crack your license: buy one licence and run the software on other PCs simply using this[^]

Cry | :((

Russell

Re: Unique ID of a computer.

Nishad S30-Aug-07 22:57

Nishad S

30-Aug-07 22:57

Yes...

So you say, we should not use it?

- NS -

Re: Unique ID of a computer.

Russell^'30-Aug-07 23:31

Russell^'

30-Aug-07 23:31

You can use it...but don't tell you are doing that.
The best is to mix that ID with other information like CPU ID, motherboard, ...
But comes other problems: not every CPU has got the ID Cry | :((

At the end I think that I sure way is doesn't exist Unsure | :~

Russell

Re: Unique ID of a computer.

Nishad S31-Aug-07 0:47

Nishad S

31-Aug-07 0:47

_Russell_ wrote:
But comes other problems: not every CPU has got the ID

HDD is anyway, reliable... Big Grin | :-D

For complication, I used to use HDD ID combined with user name, etc. Smile | :)

- NS -

Re: Unique ID of a computer.

Russell^'31-Aug-07 1:00

Russell^'

31-Aug-07 1:00

NS17 wrote:
HDD is anyway, reliable...

There are exceptions also there Cry | :((

we can ask suggestions on the "lounge" ... but I think that it will not be the first time...and I dubt that it is possible to have a solution.

We use USB Dongles ... they are unique, ... but I prefere software ways Big Grin | :-D

Russell

Re: Unique ID of a computer.

Nishad S31-Aug-07 1:12

Nishad S

31-Aug-07 1:12

_Russell_ wrote:
I prefere software

I like cracking... but dont tell anyone... Wink | ;)

- NS -

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