Is it possible to add extra options into a third party commercial software [modified] - C / C++ / MFC Discussion Boards

Re: Ghosting out a whole groupbox?

Mark Salsbery31-Jan-07 12:03

Mark Salsbery

31-Jan-07 12:03

Sorry, got interrupted and answered abruptly before.

CoffeeAddict19 wrote:
The question is- can anyone tell me how to "ghost out" or "gray out" the group boxes?

MFC:
GetDlgItem(ID_MYGROUPBOX)->EnableWindow(FALSE);
Non MFC:
::EnableWindow(::GetDlgItem(hwndDlg, ID_MYGROUPBOX), FALSE);

Re: Ghosting out a whole groupbox?

CoffeeAddict1931-Jan-07 13:03

CoffeeAddict19

31-Jan-07 13:03

Thanks! I'll get back to you and let you know if it works. Smile | :)

The Windows GDI and Regions

TheDelChop31-Jan-07 10:05

TheDelChop

31-Jan-07 10:05

Hola friends,

I'm working with a Dialog Box that has a rectangle associated with it so that I may draw in it. However, I am interested in adding regions to the rectangle, which I don't seem to have too much trouble doing. However, once I add my regions (three) all of the code within my WM_PAINT message seems to be constricted to drawing within the last region.

Does anyone know what happens to the DC when I create a region, and does anybody have any suggestions on how I might be able to change it back to the entire rectangle, like it was originally set?

Thanks,

Joe

Re: The Windows GDI and Regions

Stephen Hewitt31-Jan-07 11:35

Stephen Hewitt

31-Jan-07 11:35

Show some code. I suspect you need to use the CombineRgn function with RGN_OR set in fnCombineMode to make a combined region and then select that into the DC.

Steve

Re: The Windows GDI and Regions

Hamid_RT31-Jan-07 20:14

Hamid_RT

31-Jan-07 20:14

I agree with Steve I think you need to CombineRgn

WhiteSky

video

viliam31-Jan-07 9:28

viliam

31-Jan-07 9:28

I'd like to use AVICap to capture and record video from webcam
but I also wish to have control over contrast, brightness ...
I can call capDlgVideoSource and change it, but is there any possibility
to save these options and recall it. Something like save few most use options and recall it just by pressing some button.
Thank you

viliam

Re: video

Mark Salsbery31-Jan-07 12:09

Mark Salsbery

31-Jan-07 12:09

That dialog is provided by the VCAP driver so there's no (that I know of) common API to get the
settings.

Many/most drivers save the settings between use and many provide a "factory Default"
button/setting.

Mark

Is it possible to add extra options into a third party commercial software [modified]

Khoramdin31-Jan-07 9:03

Khoramdin

31-Jan-07 9:03

Hello,

I was just wondering if it is possible to add some extra options to an existing commercial software?

If the answer is YES, then what are the steps needs to be taken and what it the route for achieving this task?

Thank you for you time and have a great day.

Khoramdin

-- modified at 15:08 Wednesday 31st January, 2007

Re: Is it possible to add extra options into a third party commercial software

Christian Graus31-Jan-07 9:14

Christian Graus

31-Jan-07 9:14

The answer is, sometimes. It involves hooking into an app, and adding code to it. There's an example on CP:

http://www.codeproject.com/shell/sweeptheminesweeper.asp[^]

Christian Graus - C++ MVP

'Why don't we jump on a fad that hasn't already been widely discredited ?' - Dilbert

Re: Is it possible to add extra options into a third party commercial software

Khoramdin31-Jan-07 12:36

Khoramdin

31-Jan-07 12:36

Hello Christian,

Thanx for the info. Your reply to my question was "sometimes". Maybe I ask what is the factor which create the uncertainty?

Do we know in advance what 3rd party application can be hook or we just have to try and see?

Thanx for helpping out and have a great day.

Khoramdin

Re: Is it possible to add extra options into a third party commercial software

Christian Graus31-Jan-07 15:06

Christian Graus

31-Jan-07 15:06

Basically, a program with no plug in architecture, you can try to hack your way in. There's no guarentee of success, or stability in the end result. I wouldn't ever bother to try, although the article is cool.

Christian Graus - C++ MVP

'Why don't we jump on a fad that hasn't already been widely discredited ?' - Dilbert

Re: Is it possible to add extra options into a third party commercial software

Khoramdin31-Jan-07 16:37

Khoramdin

31-Jan-07 16:37

Hello Christian,

Let me see if I understand this fully. It is possible to use hooking in order to get into 3rd party software applications but the result 100% happy ending.

I have also realized that there are TWO approaches for hooking:

1-API's hooking
2-kernel hooking

Will I be correct to say either hooking is not 100% guaranteed?

I have also noticed sometimes when I use API hooking to get into the window properties of software application; I can successfully play with the window’s properties. But I am unable to access the individual buttons which are placed in the window.

Would you be able to tell me why that is?

By the way, I am not trying to be heard-aheaded o9n this subject. I am just trying to undrestand how far I can do with this hooking business.

Thanx again for all these information

Khoramdin

Re: Is it possible to add extra options into a third party commercial software

Stephen Hewitt31-Jan-07 11:38

Stephen Hewitt

31-Jan-07 11:38

To add the Christian's reply, the application may have been designed with extension in mind. For example, it may have a documented plug-in architecture.

Steve

Re: Is it possible to add extra options into a third party commercial software

Khoramdin31-Jan-07 12:42

Khoramdin

31-Jan-07 12:42

Hello Steve,

Thank you for the info. As you mentioned in your reply it is almost a stright-forward bussiness if the application have been developed with the intension to have extra option and future improvement In past, I have done programming to create DLL files and mainly added the extra personal options to a software application.

My question was targeting rather the software application which were not designed for such. Let's say I buy a DVD Player Software (WinDVD), surly they are not designed with the intension to add extra buttons with different functionality. The question is, would it be possible to get into these software applications and add the extra personalized option?

Thank you for taking the time and helping out.

Khoramdin

Re: Is it possible to add extra options into a third party commercial software

Stephen Hewitt31-Jan-07 12:59

Stephen Hewitt

31-Jan-07 12:59

In that case Christian's reply is best. It depends. While anything is possible more specific information would be needed before one could comment on the techniques required and the difficulty of the task.

Steve

Re: Is it possible to add extra options into a third party commercial software

Khoramdin31-Jan-07 16:41

Khoramdin

31-Jan-07 16:41

Hello Steve,

I guess you and Christine are right about the hooking and its uncertainties. I guess I have learnt a lot form you guys and I better bring this hooking discussion to the end.

Do you know of any step by step tutorial sort of stuff for hooking?

Thanx so much for taking the time and share with me your knowledge.

Khoramdin

convert integer value to string objcet?

Yonggoo31-Jan-07 8:59

Yonggoo

31-Jan-07 8:59

Hi All,

Is there any function in (standard) c++ that convert integer value to std:string object?

Such as,
...
int n = 123;
string str_n = itos(n);
...

or some efficient way?

Thanks!

Yonggoo

Re: convert integer value to string objcet?

lucy31-Jan-07 9:02

lucy

31-Jan-07 9:02

I would use
str_n.Format ("%d", n)

Re: convert integer value to string objcet?

Sceptic Mole31-Jan-07 9:13

Sceptic Mole

31-Jan-07 9:13

lucy wrote:
I would use
str_n.Format ("%d", n)

CString needed, not string

Re: convert integer value to string objcet?

CPallini31-Jan-07 9:51

CPallini

31-Jan-07 9:51

lucy wrote:
str_n.Format ("%d", n)

I think that std::string has not such Format method. Maybe you're writing about CString, Aren't you?

By the way, I think the OP can use a stringstream object, for instance:

std::stringstream ss;
std::string s;
ss << 5;
ss >> s;

But I don't know how efficient this way is.

Smile | :)

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.

Re: convert integer value to string objcet?

Hamid_RT31-Jan-07 19:59

Hamid_RT

31-Jan-07 19:59

I think you use of CString Wink | ;)

WhiteSky

Re: convert integer value to string objcet?

Christian Graus31-Jan-07 9:14

Christian Graus

31-Jan-07 9:14

Yes, an ostringstream would do that.

http://www.codeproject.com/vcpp/stl/ostringstream.asp[^]

Christian Graus - C++ MVP

'Why don't we jump on a fad that hasn't already been widely discredited ?' - Dilbert

exponential notation question

Victor Monteverde31-Jan-07 8:35

Victor Monteverde

31-Jan-07 8:35

How can a 2-digit exponential notation be generated in a printf?

The following code:

sprintf(str, "%.10e ", value);

is producing different results for one of my users:

6.385698e-01
or
6.3856980000e-001

????

I'm thinking it's some kind of system difference, like Regional Settings or possibly different run-time libraries, although we distribute the MFC libs with our app. This user is in Japan.

I use VC++ 6.0 and everytime I run the program on my machine I get the 3-digit-exponential-notation (6.3856980000e-001).

HINSTANCE adventures

dabs31-Jan-07 6:26

dabs

31-Jan-07 6:26

Hi,

I'm maintaining an MFC ISAPI dll, and need to:

access the HINSTANCE of the dll to be able to:
get the full path of the dll through GetModuleFileName, to be able to:
register the dll to be able to add Event Log messages.

I've tried accessing theApp.m_hInstance, but it's NULL. I've also tried calling AfxGetInstanceHandle( ), which also returns NULL. I've tried adding the AFX_MANAGE_STATE( AfxGetStaticModuleState( ) ) to the top of the function which tries to locate the HINSTANCE, but to no avail. Since this is an MFC ISAPI extension, I don't have access to the DllMain function, otherwise I would probably just store it in a global variable...

Any ideas?

Regards,
Daníel

Wenn ist das Nunstück git und Slotermeyer? Ja! Beierhund das oder die Flipperwaldt gersput!

Re: HINSTANCE adventures

Mark Salsbery31-Jan-07 6:52

Mark Salsbery

31-Jan-07 6:52

Does GetModuleHandle() help?

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