Memory, speed and MSXML - C / C++ / MFC Discussion Boards

Re: fatal error C1083: Cannot open source file: ' ..\filea.cpp

David Crow19-Jun-13 6:10

David Crow

19-Jun-13 6:10

Why is it referring to the file with two elipses (i.e., parent folder) notation?

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Re: fatal error C1083: Cannot open source file: ' ..\filea.cpp

ForNow19-Jun-13 6:19

ForNow

19-Jun-13 6:19

Don't know here is the actual build output

CSS

1>------ Rebuild All started: Project: TunTap32, Configuration: Release x64 ------
1>Build started 6/19/2013 11:45:32 AM.
1>_PrepareForClean:
1>  Deleting file "x64\Release\TunTap32.lastbuildstate".
1>InitializeBuildStatus:
1>  Touching "x64\Release\TunTap32.unsuccessfulbuild".
1>ClCompile:
1>  StdAfx.cpp
1>  fishtrace.cpp
1>  TT32api.cpp
1>  TTAdapter.cpp
1>  TunTap.cpp
1>  TunTap32.cpp
1>  fishtrace.cpp
1>c1xx : fatal error C1083: Cannot open source file: '..\fishtrace.cpp': No such file or directory
1>  Generating Code...
1>
1>Build FAILED.
1>
1>Time Elapsed 00:00:03.20

Re: fatal error C1083: Cannot open source file: ' ..\filea.cpp

Richard MacCutchan19-Jun-13 6:56

Richard MacCutchan

19-Jun-13 6:56

Try removing (but not deleting) the file from your project, and then adding it back in. You should familiarise yourself with rules of projects as this sort of issue can crop up unexpectedly. Open the project file in Notepad (but be careful not to corrupt it) and see how the rules are put together.

Use the best guess

Re: fatal error C1083: Cannot open source file: ' ..\filea.cpp

David Crow19-Jun-13 7:40

David Crow

19-Jun-13 7:40

Look in the project's VCPROJ file for a reference to each of these files. See if you notice anything different about fishtrace.cpp.

How to Implement HD video recording using DirectShow.?

mbatra3119-Jun-13 3:34

mbatra31

19-Jun-13 3:34

Hi,

I am using DirectShow to Play / Pause / Stop and Capture Video files. But Capturing and playing of video files is simple. I want to Implement HD Video recording in my project.

Anybody have any idea of how to Implement HD Video Capturing using DirectShow.?

Or Apart from DirectShow, is there any other method to Implement HD Video recording in MFC.

Regards,
Mbatra

How to download a httpfile throw Proxy

haha_c18-Jun-13 17:19

haha_c

18-Jun-13 17:19

Hi,I need to open a httpfile by Proxy Server,but the UserName and Password I set always fail,I don't know why,I tried many times,I don't know how to do,Can you have any ideas.

Here is My code:

CString strURL = _T("http://www.kkkk.com/");
CInternetSession Session(_T("Get Xml"));
CHttpFile *lpFile = NULL;
try
{
//set proxy info
char sProxyList[MAX_PATH], sProxyName[64],sProxyPassw[64];
strcpy(sProxyName,"mmm");
strcpy(sProxyPassw,"mmm");

INTERNET_PROXY_INFO proxyinfo;
proxyinfo.dwAccessType = INTERNET_OPEN_TYPE_PROXY;
proxyinfo.lpszProxy =_T("192.168.0.1:8080");
proxyinfo.lpszProxyBypass = NULL;

Session.SetOption(INTERNET_OPTION_PROXY,(LPVOID)&proxyinfo,sizeof(INTERNET_PROXY_INFO));//Success
if (! Session.SetOption(INTERNET_OPTION_PROXY_USERNAME, sProxyName, strlen(sProxyName)+1))
{
DWORD ret = GetLastError();//Always return 12018.Why?
}
if (! Session.SetOption(INTERNET_OPTION_PROXY_PASSWORD, sProxyPassw, strlen(sProxyPassw)+1))
{
DWORD ret = GetLastError(); //Always return 12018.Why?
}
}

lpFile = (CHttpFile*)Session.OpenURL(strURL,1,INTERNET_FLAG_TRANSFER_ASCII|INTERNET_FLAG_RELOAD|INTERNET_FLAG_DONT_CACHE);
if (lpFile != NULL)
{
while(TRUE)
{
char szBuff[1024] = {0};
if ( lpFile->Read(szBuff, 1024) <= 0)
{
break;
}
strContent += szBuff;
}
}
}catch(CInternetException* pEx)
{
TCHAR pszError[64];
pEx->GetErrorMessage(pszError, 64);
strErrorMsg = pszError;
pEx->Delete();
}
delete lpFile;
lpFile = NULL;
Session.Close();

Re: How to download a httpfile throw Proxy

Richard MacCutchan18-Jun-13 22:55

Richard MacCutchan

18-Jun-13 22:55

Error code 12018 is described here[^].

Use the best guess

Memory, speed and MSXML

Argonia18-Jun-13 5:32

Argonia

18-Jun-13 5:32

Hello, i have a question about the MSXML library. I fail to find how exactly they read the XML Document when its already loaded into memory. If i look for XML nodes do they read the whole document from top to bottom until find it or its something with hash tables.

My problem is that i have to remove some elements for existent XML document and add it in another. I was wondering which is better(according to speed) to keep the XML Nodes in std::vectors and remove the needed items and put them in the new XML Document and this only with 2 read/write operations on the XML Document or i should get the first part of the items do whatever i have to do with them and then take the next part and so on. This will cause for at least 8 times reading the existent XML Document and getting XML NodeLists out of it. The problem here is that the first XML Document can be really big.

I think its better to read the information only once and do what i have to do with it and then write it in the new XML Document. At least i think its gonna be faster but i am not sure exactly how MSXML does the operations on the XML Document.
Thank you for your help. Smile | :)

Re: Memory, speed and MSXML

David Crow18-Jun-13 6:13

David Crow

18-Jun-13 6:13

Argonia wrote:
I fail to find how exactly they read the XML Document when its already loaded into memory.

Did you look at the selectSingleNode() method?

Argonia wrote:

My problem is that i have to remove some elements for existent XML document and add it in another.

So why not let MSXML do this for you? For a given node (see IXMLDOMNode), use the removeChild() method.

Argonia wrote:
...but i am not sure exactly how MSXML does the operations on the XML Document.

While there are certainly better and more exhaustive examples available, I show how to briefly use MSXML here.

Re: Memory, speed and MSXML

Argonia18-Jun-13 7:52

Argonia

18-Jun-13 7:52

DavidCrow wrote:
Did you look at the selectSingleNode() method?

My question is what is in this function.

DavidCrow wrote:
So why not let MSXML do this for you? For a given node (see IXMLDOMNode), use the removeChild() method.

I can't change the given XML Document. I have to get some of the nodes of the first and add them to the second Document .

Re: Memory, speed and MSXML

David Crow18-Jun-13 9:55

David Crow

18-Jun-13 9:55

Argonia wrote:

My question is what is in this function.

Unless I had access to the source code, I wouldn't have a clue (nor would I care). If I were to surmise a guess, the class has some private member variable (e.g., file pointer or handle) that keeps track of when a file has been read or not.

Argonia wrote:

I can't change the given XML Document. I have to get some of the nodes of the first and add them to the second Document .

You can either remove unwanted nodes from the first and write the balance to the second, or copy wanted nodes from the first to the second. The net result would be the same.

Does ActiveX ctrl work as seperate process?

Vaibhav Gupt18-Jun-13 0:41

Vaibhav Gupt

18-Jun-13 0:41

I want to make an Active X ctrl that communicates with a device and then sends data to main program. I want to know that Does activex work as seperate process. Does main program waits on ActiveX ctrl or I can do sperate processing simultaneously in my main program.

Thanks in advance.

Re: Does ActiveX ctrl work as seperate process?

_AnsHUMAN_ 18-Jun-13 3:41

_AnsHUMAN_

18-Jun-13 3:41

As the name ActiveX CONTROL suggests that it is a control you will need something (some app) to host it. You can call the activex's functions from the host which can be an executable.
ActiveX doesn't work as a separate process.
Does main program waits on ActiveX ctrl or I can do sperate processing simultaneously in my main program.
This depends on the implementation.

You talk about Being HUMAN. I have it in my name
AnsHUMAN

Re: Does ActiveX ctrl work as seperate process?

Jonathan Davies18-Jun-13 5:19

Jonathan Davies

18-Jun-13 5:19

have a look as http://kandkconsulting.tripod.com/VB/Tutorials/activex_exe_tutorial.htm[^]

Assertion error Winocc.cpp line 345 While testing self made unlicensed ActiveXctrl.

Vaibhav Gupt18-Jun-13 0:38

Vaibhav Gupt

18-Jun-13 0:38

I am using vc++ 6.0. I Have made an unlicensed activex ctrl application from app wizard (MFC activeX ctrl wizard for generating random drawing). When I am testing this Activex by ActiveX control test container, all functions are working fine, but when I am testing it with dialog application, On calling any method of ActiveX it is giving error debug assertion failed. Program ......
File: winocc.cpp; line: 345

I am making an object of this ActiveX ctrl wrapper class in my testing dialog application and then calling method defined in this ActiveX ctrl.

My code:

CNewSquiggleAcX m_ClNewSquigg;
CFileDialog m_ldFile(TRUE);
// Show the File open dialog and capture the result
if(m_ldFile.DoModal()== IDOK)
{
CString m_sResults;
m_sResults = m_ldFile.GetFileName();
//m_ClNewSquigg.GetSquiggleLength();
m_ClNewSquigg.LoadDrawing(m_sResults); // Error comes in this line calling any activex function
}

Calling any method of this self created unlicensed ActiveX ctrl is giving error.

Please help.

Remote Accessing

john563217-Jun-13 20:42

john5632

17-Jun-13 20:42

I need to achieve a functionality but do not know how to start please guide:

Functionality:

USB Data Card (like internet data card) is attached with system A, system A is recognising device as USB device but I need to use that card using system B which is having all drivers of data card.
How to achieve it?

Re: Remote Accessing

Richard MacCutchan17-Jun-13 21:16

Richard MacCutchan

17-Jun-13 21:16

You cannot have the device in one system and the drivers in another.

Use the best guess

Re: Remote Accessing

vr99999999917-Jun-13 22:47

vr999999999

17-Jun-13 22:47

you should try to understand how mouse works on another remote desktop from your system.that may help. Thumbs Up | :thumbsup: