C / C++ / MFC

Code-o-mat29-Jan-09 5:25

29-Jan-09 5:25

Is that file on your local file system? If so, then simply try using FileExists[^] to check if it is there before trying to open it in your browser.

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Life: great graphics, but the gameplay sux. <

Software200729-Jan-09 5:39

Software2007

29-Jan-09 5:39

Hello,
no, its a web file. I just want to be able to open the file successfully...ShellExecute("open","http:\\www.gooogle.com"..) will return as successful even though it might not be there or no contents displayed.. I would like to check the valididty of the URL before opening it in other words.

Thanks

sft

Code-o-mat29-Jan-09 5:49

29-Jan-09 5:49

I believe ShellExecute itself will only report you if it could run the specified/associated application/command, and since you specified something starting with http:\\, it will run the associated browser and feed this to it, and since it CAN run the browser it will say "success", it doesn't care what the browser actually does with the URL. I doubt you can check if the URL is valid or not by using ShellExecute, you will have to either try finding some library or class or such that checks if an URL is valid or not for you, or you will have to do the check yourself. Of course i could be wrong...

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Life: great graphics, but the gameplay sux. <

What's the benifit for using a service class? [modified]

Stuart Dootson29-Jan-09 6:16

Stuart Dootson

29-Jan-09 6:16

You'll need to do a bit more work than just using ShellExecute, I suspect. Have a look at MFC's Internet and HTTP classes[^]. CHttpFile::QueryInfoStatusCode[^] will likely be 200 if the file is present, 404 if it's not.

followait29-Jan-09 4:57

followait

29-Jan-09 4:57

INT WSAInstallServiceClass(
  __in          LPWSASERVICECLASSINFO lpServiceClassInfo
);

typedef struct _WSAServiceClassInfo {
  LPGUID lpServiceClassId;
  LPTSTR lpszServiceClassName;
  DWORD dwCount;  LPWSANSCLASSINFO lpClassInfos;
} WSASERVICECLASSINFO,  *PWSASERVICECLASSINFOW;

Just a collection of WSANSCLASSINFO?
And the programmer needs to keep the array of WSANSCLASSINFO consistant
(hold some common attributes that make sense to the service class)?
It seems that the consistency is not promised, in another word, the inconsistency can't be detected
mechanically.

============================================
Here is a sample in the book,
the content of the array aNameSpaceClassInfo seems arbitrary, does it?

WSASERVICECLASSINFO   sci;
WSANSCLASSINFO        aNameSpaceClassInfo[4];
DWORD                 dwSapId = 200,
                      dwUdpPort = 5150,
                      dwZero = 0;
int                   ret;

memset(&sci, 0, sizeof(sci));
    
SET_NETWARE_SVCID(&sci.lpServiceClassId, dwSapId);
sci.lpszServiceClassName = (LPSTR)"Widget Server Class";
sci.dwCount = 4;
sci.lpClassInfos = aNameSpaceClassInfo;

memset(aNameSpaceClassInfo, 0, sizeof(WSANSCLASSINFO) * 4);
// NTDS name space setup
aNameSpaceClassInfo[0].lpszName = SERVICE_TYPE_VALUE_CONN;
aNameSpaceClassInfo[0].dwNameSpace = NS_NTDS;
aNameSpaceClassInfo[0].dwValueType = REG_DWORD;
aNameSpaceClassInfo[0].dwValueSize = sizeof(DWORD);
aNameSpaceClassInfo[0].lpValue = &dwZero;

aNameSpaceClassInfo[1].lpszName = SERVICE_TYPE_VALUE_UDPPORT;
aNameSpaceClassInfo[1].dwNameSpace = NS_NTDS;
aNameSpaceClassInfo[1].dwValueType = REG_DWORD;
aNameSpaceClassInfo[1].dwValueSize = sizeof(DWORD);
aNameSpaceClassInfo[1].lpValue = &dwUdpPort;

// SAP name space setup
aNameSpaceClassInfo[2].lpszName = SERVICE_TYPE_VALUE_CONN;
aNameSpaceClassInfo[2].dwNameSpace = NS_SAP;
aNameSpaceClassInfo[2].dwValueType = REG_DWORD;
aNameSpaceClassInfo[2].dwValueSize = sizeof(DWORD);
aNameSpaceClassInfo[2].lpValue = &dwZero;

aNameSpaceClassInfo[3].lpszName = SERVICE_TYPE_VALUE_SAPID;
aNameSpaceClassInfo[3].dwNameSpace = NS_SAP;
aNameSpaceClassInfo[3].dwValueType = REG_DWORD;
aNameSpaceClassInfo[3].dwValueSize = sizeof(DWORD);
aNameSpaceClassInfo[3].lpValue = &dwSapId;

WSAInstallServiceClass(&sci);

modified on Thursday, January 29, 2009 11:19 AM

What's "Winsock namespace SPI"?

followait29-Jan-09 4:10

followait

29-Jan-09 4:10

In MSDN, it says:
A namespace provider is a locally-resident piece of software that knows how to map between the Winsock namespace SPI and some existing namespace (which could be implemented locally or be accessed through the network).

I'm not clear about some concepts:
1. Winsock namespace SPI (and what does SPI stand for here?)
2. some existing namespace

The concepts are too abstract to me, any sample?
Thanks very much.

Re: What's "Winsock namespace SPI"?

led mike29-Jan-09 4:15

led mike

29-Jan-09 4:15

followait wrote:
and what does SPI stand for here?

Great question. What can you do? Oh I know, how about this[^]

Problem running on other pc

Thilek29-Jan-09 2:27

29-Jan-09 2:27

hi guys,

i have coded a simple program that give the list of files in a directory. i use Visual C++ 2008 to code it. But when i copy and run the exe file from debug folder on other pc its showing " application failed to start because its side-by-side configuration is incorrect.Please see the application event log or use the command-line sxstrace.exe tool for more detail". what should i do ? i need to do this program to run portable in any windows base pc. kidly help me.
Thank you.

Regards ,

Thilek

Code-o-mat29-Jan-09 2:35

29-Jan-09 2:35

Do you have any specific reason why you are "distributing" your DEBUG build? If no, try with a RELEASE build instead.

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Life: great graphics, but the gameplay sux. <

ATM@CodeProject29-Jan-09 2:38

ATM@CodeProject

29-Jan-09 2:38

Hi,
Change the Microsoft foundation classes in the projet settings(projectmenu->settings->general tab)to Use MFC in a static library.
Then execute the appln again .Then copy the exe file and try to run in another pc.

Thilek29-Jan-09 2:43

29-Jan-09 2:43

where can i find the projectmenu... is it on the tool bar ?

Cosmic Egg29-Jan-09 9:11

Cosmic Egg

29-Jan-09 9:11

Why is it so difficult to find project menu ???
Alternatively Press Alt + F7

Thilek30-Jan-09 3:40

30-Jan-09 3:40

i did as u said but now its showing error...

Embedding manifest...
mt.exe : general error c101008a: Failed to save the updated manifest to the file ".\Debug\testing.exe.embed.manifest". The parameter is incorrect.

kindly help me...

Thilek30-Jan-09 3:54

30-Jan-09 3:54

its ok ya.. its running now.. thanks a lot u been very helpful.. thanks a lot.... Big Grin | :-D

Thilek30-Jan-09 3:55

Debug Assertion : Project exe cannot be found or does not match.

30-Jan-09 3:55

thanks for ur idea mate... its working fine now.. thanks a lot ya... Big Grin | :-D

Divya Lalwani29-Jan-09 2:09

Divya Lalwani

29-Jan-09 2:09

Hi, can u please help.
Its a small project and involves communication with a device. The data sent by the device is Written to .DAT file (WeightValue.dat).
Following is the code:
CStdioFile fil;
fil.Open("WeightValue.dat",CFile::modeReadWrite);
fil.WriteString(LPCTSTR(value));
fil.Close();

When I try running the exe in Release / Debug Configuration, I get a debug assertion saying :
"Debugging information for ADRTest.exe cannot be found or doess not match.Binary was not built with debug information."

ADRTest.exe has triggered a breakpoint and breaks to show.

void CStdioFile::WriteString(LPCTSTR lpsz)
{
ASSERT(lpsz != NULL);
breakpoint here-> ASSERT(m_pStream != NULL);

if (lpsz == NULL)
{
AfxThrowInvalidArgException();
}

if (_fputts(lpsz, m_pStream) == _TEOF)
AfxThrowFileException(CFileException::diskFull, _doserrno, m_strFileName);
}

Awaiting your kind reply.

Thanks and Regards.
Divya.

Re: Debug Assertion : Project exe cannot be found or does not match.

Code-o-mat29-Jan-09 2:21

Re: Debug Assertion : Project exe cannot be found or does not match.

29-Jan-09 2:21

It seems you are trying to run your RELEASE build in debug mode. Could it be that the output directory for your DEBUG and RELEASE targets is the same directory and you previously built a release EXE and now you are trying to run it in DEBUG mode? Even if not, a simple "clean and rebuild" can't hurt...
Aside of that, my guess would be that fil.Open("WeightValue.dat",CFile::modeReadWrite); fails, i think if it does not find the file specified it won't create it for you, so it can't open it. Check the flags for open here[^], i guess you need CFile::modeCreate | CFile::modeNoTruncate | CFile::modeWrite | CFile::typeText, maybe with the hint of a seeking to the end of the file if you wish to append to it.

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Life: great graphics, but the gameplay sux. <

David Crow29-Jan-09 2:51

David Crow

29-Jan-09 2:51

Try:

CStdioFile fil;
CFileException e;
if (fil.Open("WeightValue.dat", CFile::modeReadWrite, &e) != FALSE)
{
    fil.WriteString((LPCTSTR) value);
    fil.Close();
}

What type of variable is value?

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

Changing Background color and Static Control background color.

Le@rner29-Jan-09 1:50

Le@rner

29-Jan-09 1:50

Hi all,

i m using this.

1. declare it in header file.
protected:
CBrush m_brush;

2. now on OnInitDialg()
m_brush.CreateSolidBrush(RGB(245, 245, 245)); // color white brush

3.now on OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
return m_brush;

but here edit contol also colored with this color.

please tell me how can i change Back ground color of dialog box and back ground color of static control.

To accomplish great things, we must not only act, but also dream;
not only plan, but also believe.

Re: Changing Background color and Static Control background color.

ATM@CodeProject29-Jan-09 1:57

ATM@CodeProject

29-Jan-09 1:57

Hi,
Create a class for the control, then return the brush in OnCtlColor()(in the new class).Just try it iam not sure about the result.

Re: Changing Background color and Static Control background color.

Code-o-mat29-Jan-09 2:02

Re: Changing Background color and Static Control background color.

29-Jan-09 2:02

If you read here[^], you find WM_CTLCOLORDLG[^] and WM_CTLCOLORSTATIC[^], maybe try handling these messages instead of WM_CTLCOLOR, aside of that, the documentation also states this for WM_CTLCOLOR:

lParam
A handle to a child window (control).

This is the handle of the control asking for the color information, you could use that to filter out the controls you wish to change the background color.

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Life: great graphics, but the gameplay sux. <

Le@rner29-Jan-09 17:37

Le@rner

29-Jan-09 17:37

Thanks,

please tell how can i color the background of formview.

To accomplish great things, we must not only act, but also dream;
not only plan, but also believe.

Merging the two video files

raj157629-Jan-09 1:28

raj1576

29-Jan-09 1:28

hi All
I m writing a directshow application in vc++ 2005. My problem is that I m trying to merge two or more videos clips but i can't get any help from anywhere please help me how do i this.

please help me
Thanks in advance

Re: Merging the two video files

Code-o-mat29-Jan-09 2:09