C / C++ / MFC Discussion Boards

BadJerry13-Feb-06 23:26

13-Feb-06 23:26

You may need to iterate if you want to persist your map ... and the result (an xml file for instance) looks neater if the keys are sorted... a bit petty.
But yes it would be pointless to iterate through it to find a value Smile | :)

How to encrypt .exe?

Drca13-Feb-06 2:42

Drca

13-Feb-06 2:42

Hi all,

in my current task obfuscation is not enough, because I need to protect exe resources to be queried as well. For example, if someone try to open that encrypted exe in VS one will not be able to see resources. Any ideas, solutions? Blush | :O

Drca

Re: How to encrypt .exe?

David Crow13-Feb-06 3:13

David Crow

13-Feb-06 3:13

Have you been through the Crypto API?

"The greatest good you can do for another is not just to share your riches but to reveal to him his own." - Benjamin Disraeli

Re: How to encrypt .exe?

Maximilien13-Feb-06 3:27

Maximilien

13-Feb-06 3:27

Can we encrypt resources inside and .exe ? encrypt bitmaps, menus, stringtables ?

Confused | :confused:

Maximilien Lincourt
Your Head A Splode - Strong Bad

Re: How to encrypt .exe?

Blake Miller13-Feb-06 4:25

Blake Miller

13-Feb-06 4:25

Yes, you can, and then store them as binary data - custom resources.

However, then you have to overload all your resource loaders to decrypt the data on the fly when they are read back in.

People that start writing code immediately are programmers (or hackers), people that ask questions first are Software Engineers - Graham Shanks

Re: How to encrypt .exe?

Maximilien13-Feb-06 4:55

Maximilien

13-Feb-06 4:55

yuck ... point taken ...

but it's not a default MFC/Windows behaviour; and all the extra work will eventually be defeated; if the user really likes your bitmaps and icons ( for example ), he can do a screen grab and manually extract them.

Maximilien Lincourt
Your Head A Splode - Strong Bad

Re: How to encrypt .exe?

ThatsAlok14-Feb-06 19:50

ThatsAlok

14-Feb-06 19:50

Maximilien wrote:
but it's not a default MFC/Windows behaviour; and all the extra work will eventually be defeated; if the user really likes your bitmaps and icons ( for example ), he can do a screen grab and manually extract them.

Now we have to Encrypt the desktop too!

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Re: How to encrypt .exe?

James R. Twine13-Feb-06 8:03

James R. Twine

13-Feb-06 8:03

You might be able to take something like UPX, modify the code to do some encryption, and use it, or purchase an off-the-shelf solution.

However, remember that encryption, unlike hashing, is designed to be undone - it is usually a matter of resources if someone really wants what you are hiding. Smile | :)

Peace!

-=- James

If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Avoid driving a vehicle taller than you and remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
DeleteFXPFiles & CheckFavorites (Please rate this post!)

-- modified at 14:03 Monday 13th February, 2006

[Message Deleted]

fearless stallion13-Feb-06 2:10

fearless stallion

13-Feb-06 2:10

[Message Deleted]

Re: How can I get the Number of My Applications Running on a Network(LAN)?

Andre xxxxxxx13-Feb-06 2:58

Andre xxxxxxx

13-Feb-06 2:58

The application has to listen for a broadcast and then reply to the workstation which has sent the broadcast.

André

Re: How can I get the Number of My Applications Running on a Network(LAN)?

fearless stallion13-Feb-06 18:59

fearless stallion

13-Feb-06 18:59

Hi André,

Thanks a lot for help, Can you give me some links where i can find some samples of Broadcasting and also i came to know that Broadcasting Requires Administrative Permissions on the machine and not every machine reponds to it, is it so ? or is there any other way out ?

Thanks again Big Grin | :-D

kss

Re: How can I get the Number of My Applications Running on a Network(LAN)?

ThatsAlok14-Feb-06 19:48

ThatsAlok

14-Feb-06 19:48

fearless stallion wrote:
where i can find some samples of Broadcasting and also i came to know that Broadcasting Requires Administrative Permissions on the machine and not every machine reponds to it, is it so ? or is there any other way out ?

actually it is very typical task !
First you have to enumerate the machine present on your network.. Now AFAIK socket connection doesnot need any administrative permission... so you can send udep socket to all the machine present in the network enquirying about wheather you application is running or not and increment teh counter whenever you recv the reply!

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Re: How can I get the Number of My Applications Running on a Network(LAN)?

fearless stallion19-Feb-06 18:38

fearless stallion

19-Feb-06 18:38

Thanks a lot for the help

kss

win32 mci sound routines

Waldermort13-Feb-06 2:09

Waldermort

13-Feb-06 2:09

On my current project I'm trying to include some sound. Now I have worked out how to use some of the MCI functions and messages to play my wav files.

Currently I have a looping background wav, and sevral other 'sound' wavs which are played depending on the users actions. (clicking a button etc..) Problem is, it sounds awful. Everything plays without a hitch, but the volume levels are just plain wrong. Most of my code is based on this tutorial http://www.codeproject.com/audio/mididemocp.asp with a few additions of my own.

Now my question is, how do you manipulate the volume levels of the files? My background music plays at the correct volume, but the other sounds are too quiet. Using the waveOutSetVolume() does not do what I need, it simply adjusts the windows global wave volume level. Also I must point out that I do not want to use DirectX or the MFC classes in this project.

Loadlibrary returns error 182

Spykraft13-Feb-06 1:55

Spykraft

13-Feb-06 1:55

Am trying to access a C++ win32 DLL (32bit) from an .exe project by dynamically loading the DLL as under;
Handle THandle;
errval Integer;
Handle=LoadLibrary("C:\\my folder\\testdll.dll");
if( Handle == NULL )
cout<<GetLastError()<<endl;;

I found that Handle is always set to 0, even if I try putting in the full path.
GetLastError is returning 182 which I believe is an Invalid Ordinal.

Anyone got any idea why LoadLibrary might be returning this error? It looks to
me as if there's something wrong with the DLL.
Also when I tried to load the DLL manually in the registry by typing the following under Start Menu->Run

regsvr32 C:\my folder\testdll.dll

Nothing happens, the command just gets back to the last window open.
Any ideas?

Re: Loadlibrary returns error 182

David Crow13-Feb-06 3:19

David Crow

13-Feb-06 3:19

Spykraft wrote:
It looks to
me as if there's something wrong with the DLL.

Try with some other DLLs to be sure.

"The greatest good you can do for another is not just to share your riches but to reveal to him his own." - Benjamin Disraeli

Re: Loadlibrary returns error 182

James R. Twine13-Feb-06 8:06

James R. Twine

13-Feb-06 8:06

Spykraft wrote:
looks to me as if there's something wrong with the DLL.

   I think you are correct! Try the obvious - right-click on the file and see if you can view its properties (version information from the resources), or try to open it up as resources using the debugger. Maybe try a tool like depends.

   Trying to open the DLL proper in the debugger should help you determine if it is a valid Win32 executable.

   Peace!

-=- James

How to show VC++ created waveforms on Browser

RamL13-Feb-06 0:43

RamL

13-Feb-06 0:43

Hello,

I am using VC++ & my application shows some wave-forms like sine wave & square wave. Here I want to show VC++ waveforms on the browser.

So which tool I need to integrate with my application?
How can I show my waveforms on the Browser?
If I click on Browser UI buttons, according to that wave from should take from my VC++ application & show it on the browser.

Thankx in adavnce,

Awating experts reply,

- Ramesh.

Re: How to show VC++ created waveforms on Browser

khan++13-Feb-06 1:15

khan++

13-Feb-06 1:15

It depends somewhat if you are using MFC or not.
I think you could make it an OCX.
Start with an ATL/Com project (if you need MFC, then check its checkbox), then insert a Full control into the project. It will give you a OnDraw() etc function in which you can draw the waveforms.
However this may not be the only way or the easiest.

this is this.

Re: How to show VC++ created waveforms on Browser

RamL13-Feb-06 1:55

RamL

13-Feb-06 1:55

thanx,

I am using MFC , but how can I show same waveforms on the browser without ocx or ATL/COM?

is there HTML or Java applet supports? If supports then how to do it?

Re: How to show VC++ created waveforms on Browser

khan++13-Feb-06 2:02

khan++

13-Feb-06 2:02

I am not so sure of other way(s).
About the html/applet support, I have never tried those. I hope someone else can help you with that.

this is this.

Tooltips for statusbar

Owner drawn12-Feb-06 23:46

Owner drawn

12-Feb-06 23:46

I have a statusbar that I have subclassed and it displays progress bars, icons etc.

Now I would like to display tooltips for each pane of the statusbar.

How to display tooltip for statusbar panes.

Owner drawn
Jesus Loves

Re: Tooltips for statusbar

toxcct13-Feb-06 0:47

toxcct

13-Feb-06 0:47