C / C++ / MFC

Iain Clarke, Warrior Programmer3-Mar-09 22:33

3-Mar-09 22:33

This is a bigger question than it looks.

I have a loopback address, my ethernet adapter has two addresses (don't ask), and my wifi adapter has one address (though not currently active).

Go to a command prompt, and type:
ipconfig /all
and see all the information you can shake a stick at.

Then do a search for GetIpAddrTable in MSDN, and that will show you a bunch of functions to interogate windows about network information.

Now, get scared and look for articles on codeproject (which you should have done first)
http://www.codeproject.com/KB/IP/[^]
http://www.codeproject.com/KB/IP/getipnr.aspx[^] looks pretty perfect for you.

Enjoy, and learn,

Iain.

Codeproject MVP for C++, I can't believe it's for my lounge posts...

Paulraj G3-Mar-09 22:52

Paulraj G

3-Mar-09 22:52

Thank you so much for your reply.

G.Paulraj

PankajB4-Mar-09 1:14

PankajB

4-Mar-09 1:14

#include <afxwin.h> 
#include <afxsock.h>
:::::::::::
:::::::::::

char* CLogger::GetIPAdd()
{
	WORD wVersionRequested;
	WSADATA wsaData;
	char Name[255];
	PHOSTENT HostInfo;
	wVersionRequested = MAKEWORD( 1, 1 );
	char *IPAdd;
	if ( WSAStartup( wVersionRequested, &wsaData ) == 0 )
	{
		if( gethostname ( Name, sizeof(Name)) == 0)
		{
			//printf("Host name: %s\n", name);
			if((HostInfo = gethostbyname(Name)) != NULL)
			{
				int nCount = 0;
				while(HostInfo->h_addr_list[nCount])
				{
					IPAdd = inet_ntoa(*(struct in_addr *)HostInfo->h_addr_list[nCount]);
 
					++nCount;
				}
			}
		}
	}
  return IPAdd;
}

Iain Clarke, Warrior Programmer4-Mar-09 1:20

4-Mar-09 1:20

You might want to reply to the person asking the question...

Iain.

Codeproject MVP for C++, I can't believe it's for my lounge posts...

CPallini4-Mar-09 2:00

4-Mar-09 2:00

#include <windows.h>
#include <tchar.h>
#include <stdio.h>

int _tmain(
            int argc, 
            TCHAR *argv[]
           )
{
   DCB dcb;
   HANDLE hCom;
   BOOL fSuccess;
   TCHAR *pcCommPort = TEXT("COM2");

   hCom = CreateFile( pcCommPort,
                    GENERIC_READ | GENERIC_WRITE,
                    0,    // must be opened with exclusive-access
                    NULL, // default security attributes
                    OPEN_EXISTING, // must use OPEN_EXISTING
                    0,    // not overlapped I/O
                    NULL  // hTemplate must be NULL for comm devices
                    );

   if (hCom == INVALID_HANDLE_VALUE) 
   {
       // Handle the error.
       printf ("CreateFile failed with error %d.\n", GetLastError());
       return (1);
   }
:::::::::::::::::::::
:::::::::::::::::::::
   return (0);
}

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.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

Iain Clarke, Warrior Programmer4-Mar-09 2:57

4-Mar-09 2:57

Now you're just doing that on purpose! Mad | :mad:

Iain.

Codeproject MVP for C++, I can't believe it's for my lounge posts...

CPallini4-Mar-09 3:30

4-Mar-09 3:30

In a bad mood today? Rose | [Rose]

Iain Clarke, Warrior Programmer4-Mar-09 5:07

4-Mar-09 5:07

Now where's that :hulk: emoticon...

Iain.

Codeproject MVP for C++, I can't believe it's for my lounge posts...

CPallini4-Mar-09 5:50

4-Mar-09 5:50

:pizza:

and :'extra vergine' olive oil: for you.

Iain Clarke, Warrior Programmer4-Mar-09 6:03

4-Mar-09 6:03

I trust you've added yourself to the THHB? If not, do so IMMEDIATELY!

Iain.

Codeproject MVP for C++, I can't believe it's for my lounge posts...

Eytukan3-Mar-09 22:49

Eytukan

3-Mar-09 22:49

Here[^]

He never answers anyone who replies to him. I've taken to calling him a retard, which is not fair to retards everywhere.-Christian Graus

CPallini3-Mar-09 22:55

3-Mar-09 22:55

See also here [^].
Smile | :)

CPU Problem

MsmVc3-Mar-09 21:27

MsmVc

3-Mar-09 21:27

Hi
My Application CPU use very high.I ahve a globlem function and these function i am calling in InitDialog.

void ThreadRoute1( void* arg )	
	{

		try{
  USES_CONVERSION;

  HANDLE hDir = CreateFile( CString("C:\\"), // pointer to the file name
    FILE_LIST_DIRECTORY,                // access (read/write) mode
    FILE_SHARE_READ|FILE_SHARE_DELETE,  // share mode
    NULL,                               // security descriptor
    OPEN_EXISTING,                      // how to create
    FILE_FLAG_BACKUP_SEMANTICS,         // file attributes
    NULL                                // file with attributes to copy
  );

  FILE_NOTIFY_INFORMATION Buffer[1024];
  DWORD BytesReturned;
  while( ReadDirectoryChangesW(
                                hDir,                                  // handle to directory
                                &Buffer,                                    // read results buffer
                                sizeof(Buffer),                                // length of buffer
                                TRUE,                                 // monitoring option
                                FILE_NOTIFY_CHANGE_SECURITY|
                                FILE_NOTIFY_CHANGE_CREATION|
                                FILE_NOTIFY_CHANGE_LAST_ACCESS|
                                FILE_NOTIFY_CHANGE_LAST_WRITE|
                                FILE_NOTIFY_CHANGE_SIZE|
                                FILE_NOTIFY_CHANGE_ATTRIBUTES|
                                FILE_NOTIFY_CHANGE_DIR_NAME|
                                FILE_NOTIFY_CHANGE_FILE_NAME,             // filter conditions
                                &BytesReturned,              // bytes returned
                                NULL,                          // overlapped buffer
                                NULL// completion routine
                                ))
    {
		CTime tm = CTime::GetCurrentTime();

    CString helper_txt;
    
    switch(Buffer[0].Action)
      {
      case FILE_ACTION_ADDED: helper_txt = "The file was added to the directory"; break; 
      case FILE_ACTION_REMOVED: helper_txt = "The file was removed from the directory"; break; 
      case FILE_ACTION_MODIFIED: helper_txt = "The file was modified. This can be a change in the time stamp or attributes."; break; 
      case FILE_ACTION_RENAMED_OLD_NAME: helper_txt = "The file was renamed and this is the old name."; break; 
      case FILE_ACTION_RENAMED_NEW_NAME: helper_txt = "The file was renamed and this is the new name."; break;
      }
    int i=0;
	
    do
      {
		 
CString(Buffer[i].FileName);
CString ad="C:\\";
CString adl= "C:\\";
ad +=CString(Buffer[i].FileName).Left(Buffer[i].FileNameLength / 2);


	CString spath1 = tr;

	int nLen = spath1.GetLength();

		LPCSTR lpszBuf = spath1.GetBuffer(nLen);

		spath1.ReleaseBuffer();
	
	/*CFileFind hFile12;
	BOOL bFound = hFile12.FindFile( spath1 + _T("*.*") );

	CString name;

while ( bFound )   
	{
		bFound = hFile12.FindNextFile();
		if( (! hFile12.IsDots()) && ( hFile12.IsDirectory() ) )		
		{
			name = hFile12.GetFileName();
			int nLen = ad.GetLength();

		LPCSTR lpszBuf = spath1.GetBuffer(nLen);

		spath1.ReleaseBuffer();
	
		LPCSTR pF=lpszBuf;
			
		
		
		
		LPCSTR pT=path;
			
			if (fo.Copy(pF,pT));
	
		
		LPCSTR pF=lpszBuf;
			
		
		
		
		LPCSTR pT=path;
			
			if (fo.Copy(pF,pT));
			
		  }
		  else
		  {
		  }
			
      i++;
      
      }
    while (!Buffer[i].NextEntryOffset);



    }
	
	
					catch(...)
					{}
	}

And Calling in

InitDialog()
{
_beginthread( ThreadRoute, 0, (void*)new Param(FILE_NOTIFY_CHANGE_FILE_NAME, CString("FILE_NOTIFY_CHANGE_FILE_NAME") ) );


}

Every things is working fine.How cani i remove CPU Uses problem .
Plz help me

Code-o-mat3-Mar-09 21:44

Code-o-mat

3-Mar-09 21:44

Probably one of your while loops is a runaway...try breaking the execution of your program (debug) when it is eating the CPU and see what your thread is doing.

> 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. <

Stuart Dootson3-Mar-09 21:47

Stuart Dootson

3-Mar-09 21:47

So...you're asking to see all changes and accesses to all files on the C drive. And then you (as far as I can tell) enumerate a whole load of files somewhere on each file access. And you then wonder why you've got high CPU utilisation.

Download FileMon[^] and run it so you see all the file accesses that happen on a standard Windows system.

I think you need to go back to your requirements and think of an alternate implementation, 'cause this one ain't gonna fly, baby!

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Hamid_RT4-Mar-09 1:00

Hamid_RT

4-Mar-09 1:00

Your loops are heavy if you want to monitor changes on files/folders codeproject has good articles for it you can see them for more info.

Of one Essence is the human race
thus has Creation put the base
One Limb impacted is sufficient
For all Others to feel the Mace
(Saadi )

MsmVc4-Mar-09 1:13

MsmVc

4-Mar-09 1:13

can you give me link of monitor changes on files/folder.

Hamid_RT4-Mar-09 1:44

Hamid_RT

4-Mar-09 1:44

Spying a file system[^]

CDirectoryChangeWatcher - ReadDirectoryChangesW all wrapped up[^].

Of one Essence is the human race
thus has Creation put the base
One Limb impacted is sufficient
For all Others to feel the Mace
(Saadi )

MsmVc5-Mar-09 23:42

MsmVc

5-Mar-09 23:42

Thanks for reply.CPU Problem Solved.
It's nice article but problem is that when some we added size of 2GB folder A in directory C and at the same time we send size of 10kb file B then it is not notifying FileB.How to solve that problem?

or can i watch only File and Folder added in directory.Can i avoid to watch folder internal contains.Plz help me..