C / C++ / MFC

21-Jul-08 2:14

Rajkumar R wrote:
BTW, THHB?

Thread Hijacking Happy Brigate, and you're live contributing to.
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Re: OT + THHB Attempt 1

Rajkumar R21-Jul-08 2:20

Rajkumar R

21-Jul-08 2:20

And you should be ranked in top 10 on the THHB category right?

it seems there was a discussion on THHB on the board, can you link me to that.

Re: OT + THHB Attempt 1

CPallini21-Jul-08 2:23

Beep/Audio without speakers using VC++.Net [modified]

21-Jul-08 2:23

Rajkumar R wrote:
And you should be ranked in top 10 on the THHB category right?

Possibly.

Rajkumar R wrote:

it seems there was a discussion on THHB on the board, can you link me to that

Believe me, I don't know about.
Smile | :)

Andy Rama19-Jul-08 19:46

Andy Rama

19-Jul-08 19:46

Hi all,

How to generate beep sound or audio from a system not having speakers in VC++.Net?

I used Beep(freq,mili_secs) to generate a beep from motherboard.Will it work without sound card installed on system?
And how to know diffrent frequencies?

Regards,
Aniket A. Salunkhe

modified on Sunday, July 20, 2008 1:55 AM

Re: Beep/Audio without speakers using VC++.Net

Ștefan-Mihai MOGA19-Jul-08 20:50

Re: Beep/Audio without speakers using VC++.Net

19-Jul-08 20:50

Hi Aniket,

I think you should try using the MessageBeep[^] function.

Best regards,
Mihai Moga

CPallini20-Jul-08 22:09

Newbie question, handling form focus messages

20-Jul-08 22:09

Aniket Salunkhe wrote:
I used Beep(freq,mili_secs) to generate a beep from motherboard.Will it work without sound card installed on system?

Yes, provided your system satisfy function requirements [^].

Aniket Salunkhe wrote:
And how to know diffrent frequencies?

Documentation states that frequency maybe genrated in the "37 through 32,767" Hz range.
Smile | :)

kensai19-Jul-08 10:45

kensai

19-Jul-08 10:45

I have a problem with MDI forms. An MDI form in my application sets focus to a control on it(also scrolls to its location) when the form is clicked/activated/focused. I'm looking a way to prevent it. This is actually a C# application and I have no C++/WinApi knowledge. I tried Spy++ and checked messages it recieves when the mdi form is activated and when this problem occurs. I saw several messages like WM_FOCUS and such. I checked the message number, e.g 0022, and overriden WndProc function of the mdi form and tried to handle it like "if(m.Msg == 0022 || m.Msg == 22)return" for all of the messages includes word "focus" but this didn't do any good. I don't know what else I can do.

This is actually a .NET question I posted here but I thought maybe someone with C++/WinApi knowledge could help me with this. It's driving me insane and I appreciate any help.

No avi file has been stored, when Capturing Video to a File

dwk0019-Jul-08 3:34

dwk00

19-Jul-08 3:34

Hi,

Preview works,
Capture does not work at
//

Problem: RenderStream(&PIN_CATEGORY_CAPTURE, &MEDIATYPE_Video, pBuild, NULL, pMux)

Please help.

void CWebCamDlg::OnStart()
{
// TODO: Add your command handler code here

UpdateData();
IGraphBuilder *pGraph2;
IMediaControl *pControl2;
IVideoWindow *pVidWin3;
ICaptureGraphBuilder2 *pBuild2;

hr =CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER,IID_IGraphBuilder, (void**)&pGraph2);

pGraph2->QueryInterface(IID_IMediaControl, (void **)&pControl2);

///////////////////////////////////////////////////////////////////////////////////////////////

hr =CoCreateInstance(CLSID_CaptureGraphBuilder2, NULL, CLSCTX_INPROC_SERVER,IID_ICaptureGraphBuilder2,(void**)&pBuild2);

pGraph2->QueryInterface(IID_IVideoWindow, (void **)&pVidWin3);

hr = pBuild2->SetFiltergraph(pGraph2);

//hr = pGraph2->AddFilter(pBase, L"Capture Filter");

IBaseFilter *pMux;

//CoCreateInstance(CLSID_AviDest, 0, CLSCTX_INPROC_SERVER, IID_IBaseFilter, (void **)&pMux);

//pGraph2->AddFilter(pMux, L"AVI MUX");

IBaseFilter *pWriter;

CoCreateInstance(CLSID_FileWriter, 0, CLSCTX_INPROC_SERVER, IID_IBaseFilter, (void **)&pWriter);

hr =pBuild2->SetOutputFileName(&MEDIASUBTYPE_Avi,L"c:\\dwk.avi",&pMux,0);

////////////////////////////////////////////////////////////////////////
//prolbem
//pBase from preview

hr = pBuild2->RenderStream(&PIN_CATEGORY_CAPTURE, &MEDIATYPE_Video, pBase, NULL, pMux);

//////////////////////////////////////////////////////////////////////////

pControl2->Run();
pVidWin3->put_Owner((OAHWND)m_hWnd);
pVidWin3->put_WindowStyle(WS_CHILD | WS_CLIPSIBLINGS);

CRect rc;
GetWindowRect(rc);
ScreenToClient(rc);

pVidWin3->SetWindowPosition(0, 0, rc.Width(), rc.Height());

// Release the mux filter.
pMux->Release();

IConfigAviMux *pConfigMux = NULL;

pMux->QueryInterface(IID_IConfigAviMux, (void**)&pConfigMux);

pConfigMux->SetMasterStream(1);
pConfigMux->Release();

IConfigInterleaving *pInterleave = NULL;

pMux->QueryInterface(IID_IConfigInterleaving, (void**)&pInterleave);

pInterleave->put_Mode(INTERLEAVE_CAPTURE);
pInterleave->Release();
}

Please Help!
Thanks

How to assign a same icon id to different files programatically?

Priya_Sundar19-Jul-08 1:18

Re: How to assign a same icon id to different files programatically?

19-Jul-08 1:18

Hi,

I am using two differnt applications within one project in vc++.

For these I want to load two different application icons. However i dont want to another icon id. I want to use this same icon id. The reason is because i have all my menus,etc with this id. So i want to have this id but pointing to two differnt resource files, which would be decided in the compile time.

How to use/point a icon id to two different files programatically?

Priya Sundar

Joe Woodbury19-Jul-08 8:57

Joe Woodbury

19-Jul-08 8:57

I don't understand the problem. Just make sure you assign the same values in the resource.h file.

Anyone who thinks he has a better idea of what's good for people than people do is a swine.
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Need algorithm to find paths

Member 465568519-Jul-08 1:14

Member 4655685

19-Jul-08 1:14

Hi for eg assume we have 5 nodes
and need to travel from 1 to 2 we will get total 16 paths i need all those paths
i have writtn for that but that is time consuming if u have any good logic plz suggest

Re: Need algorithm to find paths

CPallini19-Jul-08 9:45

Precendece warning Message!

19-Jul-08 9:45

Looks similar to Travelling Salesman Problem [^]. An amusing algo maybe the Simulated Annealing [^] one.
Smile | :)

Priya_Sundar18-Jul-08 23:21

18-Jul-08 23:21

Hi All,

I have this global variable declared as in the below statement:

const LONG MYITEMID = MAKELONG(MAKEWORD('m','i'),MAKEWORD('d','0'));

Here when i try to build this i am getting the warning displayed 3 TIMES:

W8084 Suggest parentheses to clarify precedence

Can anyone tell me how to resolve this?

I have tried all types of typecasting.. but it didnt work.

Kindly help!

Priya Sundar

Ștefan-Mihai MOGA18-Jul-08 23:46

18-Jul-08 23:46

Hi Priya,

this is a Borland C++ warning, and it works well under Visual C++ (no error). If you would like to skip this please put # pragma warn -8084.

Best regards,
Mihai Moga

Priya_Sundar19-Jul-08 0:30

19-Jul-08 0:30

Hi Moga,

You are right. it is a Borland c++ warning message.

But do you know why is this message coming for this sort of statement?

Thanks for the help. After putting that statement now it is working fine.

Priya Sundar

Ștefan-Mihai MOGA19-Jul-08 0:34

19-Jul-08 0:34

Hi Priya,

I'm not familiar with Borland C++, so I cannot answer to your question. Sorry!

Best regards,
Mihai Moga

Priya_Sundar19-Jul-08 0:43

19-Jul-08 0:43

No probs, thankyou.

Also i found this link...

http://www.koders.com/c/fid299C4BC1FEA418784068F7BF835B26FBDB9C2852.aspx?s=cdef%3Aparser[^]

Check it out too...

Priya Sundar

David Crow19-Jul-08 11:10

David Crow

19-Jul-08 11:10

Priya_Sundar wrote:
const LONG MYITEMID = MAKELONG(MAKEWORD('m','i'),MAKEWORD('d','0'));

Here when i try to build this i am getting the warning displayed 3 TIMES:

W8084 Suggest parentheses to clarify precedence

Have you considered looking at how the preprocessor is expanding that statement? It might help you to see it in a different light.

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List Control in MFC

AnithaSubramani18-Jul-08 19:42

AnithaSubramani

18-Jul-08 19:42

Hi All,

Im using List Control in my project. I have implemented the background color and text color of List Control.Everythig is working fine. But dint change the background color of header.How can i set the background color for header. Help me.

Thanks & Regards,

Anitha

Re: List Control in MFC

Ștefan-Mihai MOGA18-Jul-08 21:44