Re: Process Directory - C / C++ / MFC Discussion Boards

Tim Deveaux5-Jul-01 13:28

5-Jul-01 13:28

GetModuleFileName or GetModuleFileNameEx should work, or you can parse argv[0].

Isn't this in the FAQ yet? Wink | ;)

Re: Process Directory

John Uhlenbrock5-Jul-01 13:30

John Uhlenbrock

5-Jul-01 13:30

As I previously mentioned I wanted to get the directory the file is in, not the file name and its full path.

Re: Process Directory

Tim Deveaux5-Jul-01 13:40

Tim Deveaux

5-Jul-01 13:40

I think its a simple parse. Once you have the full path just strrchr for the last '\\', then the next to last, and what remains, however improbable, should be your directory.

later
oops - I think just one strrchr would do it - just read your msg again...

Re: Process Directory

Mike Burston5-Jul-01 14:30

Mike Burston

5-Jul-01 14:30

Or better yet, use stl strings.

string dirAndName = "c:\\Test\\SubDir\\File.Ext";
string directoryOnly = dirAndName.substr( 0, dirAndName.findLastOf('\\') );

Of course, this does no error checking, so if you think there might be no '\' character at all then you'd need to rework this slightly.

Re: Process Directory

Kannan Kalyanaraman5-Jul-01 23:10

Kannan Kalyanaraman

5-Jul-01 23:10

how about using _splitpath

cheers
kannan

Re: Process Directory

Mike Burston5-Jul-01 13:36

Mike Burston

5-Jul-01 13:36

"GetCurrentDirectory" will return you the directory that the current process is running in (fairly obvious from the name, really!!). If you create a desktop shortcut this is the "Start In" entry (at least, that's what it's called under 2000 - I can't remember if NT/95/etc use the exact same terminology).

"GetModuleFileName" will return you the path of the file that the specified module (such as a DLL) was loaded into memeory from. If you pass NULL as the first parameter you get the path of the current process module. You may need to process the returned value from "GetModuleFileName" to extract exactly what you want (path only, filename only, etc) - it's been a while since I did anything like this, so I'm not sure!

Re: Process Directory

Carlos Antollini5-Jul-01 12:36

Carlos Antollini

5-Jul-01 12:36

But if you call to GetCurrentDirectory when the application start you can get the directory. But dependes the application. If the App is runing like NT service the currentdirectory will be System32

Cheers!!!

Carlos Antollini.

Re: Process Directory

#realJSOP6-Jul-01 4:54

#realJSOP

6-Jul-01 4:54

Here's a crap-load of filename code I use a lot. The function you're interested in is at the bottom, and it relies on one or two of the other functions. You didn't specify, but I assume you're using VC++ and MFC.

Here's the header file (FILENAME.H) :

#ifndef __FILENAME_H
#define __FILENAME_H

CString justFileName(LPCSTR);
CString justName(LPCSTR);
CString justExtention(LPCSTR);
CString justPath(LPCSTR);
CString justDrive(LPCSTR);
CString forceExtention(CString fn, CString newext);
CString forceFileName(CString fn, CString newname);
CString forcePath(CString fn, CString newpath);
BOOL FileExists(CString fn);
int DeleteFile(CString fname);
int RenameFile(CString oldname, CString newname);
void AddBackSlash(CString& path);
CString RemoveBackSlash(CString path);
CString GetProgramPath(BOOL bAndExeName=FALSE);
#endif

And here's the CPP file (FILENAME.CPP) :

#include "stdafx.h"
#include "filename.h"
#include <io.h>

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

//-------------------------------------------------------------------------//
CString justFileName(LPCSTR f)                                               
{
  char drive[_MAX_DRIVE],
        dir[_MAX_DIR],
        file[_MAX_FNAME],
        ext[_MAX_EXT];
  CString st;
  _splitpath((char *)f, drive, dir, file, ext);
  st = file;
  st += ext;
  return st;
}

//-------------------------------------------------------------------------//
CString justName(LPCSTR f)
{
  char drive[_MAX_DRIVE],
        dir[_MAX_DIR],
        file[_MAX_FNAME],
        ext[_MAX_EXT];
  CString st;
  _splitpath((char *)f, drive, dir, file, ext);
  st = file;
  return st;
}


//-------------------------------------------------------------------------//
CString justPath(LPCSTR f)
{
  char drive[_MAX_DRIVE],
        dir[_MAX_DIR],
        file[_MAX_FNAME],
        ext[_MAX_EXT];
  CString st;
  _splitpath((char *)f, drive, dir, file, ext);
  st = drive;
  st += dir;
  return st;
}   

//-------------------------------------------------------------------------//
CString justExtention(LPCSTR f)
{
  char drive[_MAX_DRIVE],
       dir[_MAX_DIR],
       file[_MAX_FNAME],
       ext[_MAX_EXT];
  CString st;
  _splitpath((char *)f,drive,dir,file,ext);
  st = ext;
  return st;
}

//-----------------------------------------------------------------------/
CString forceExtention(CString fn, CString newext)
{
  CString st = justPath(fn);
  st += justName(fn);
  st += newext;
  return st;
}

//-----------------------------------------------------------------------/
CString forceFileName(CString fn, CString newname)
{
  CString st = justPath(fn);
  st += newname;
  st += justExtention(fn);
  return st;
}

//----------------------------------------------------------------------------/
CString forcePath(CString fn, CString newpath)
{
  CString st = newpath;
  AddBackSlash(st);
  st += justFileName(fn);
  return st;
}

//----------------------------------------------------------------------------/
BOOL FileExists(CString fn)
{
	BOOL exists = FALSE;                   // assume failure
	if (!fn.IsEmpty())
	{
		int status = _access(fn,0);
		if (status == 0)
			exists = TRUE;
	}
	return exists;
}

//----------------------------------------------------------------------------/
int RenameFile(CString oldname, CString newname)
{
	int  status    = 0;
	BOOL oldexists = FileExists(oldname);
	BOOL newexists = FileExists(newname);

	if (oldexists && !newexists)
		CFile::Rename(oldname, newname);
	else
		status = -1;
	return status;
}

//----------------------------------------------------------------------------/
int DeleteFile(CString fname)
{
	int  status    = 0;
	if (FileExists(fname))
		CFile::Remove(fname);
	else
		status = -1;
	return status;
}

//----------------------------------------------------------------------------/
void AddBackSlash(CString& path)
{
	int length = path.GetLength();

	if (length > 1)
	{
		if (path.GetAt(length - 1) != '\\')
		{
			path += "\\";
		}
	}
	else if (1 == length)
	{
		CString temp = path;
		temp.MakeUpper();
		TCHAR ch = temp.GetAt(0); 

		if (ch >= 'A' && ch <= 'Z')
		{
			path += ":\\";
		}
		else if (ch != '\\')  // add a back slash anyway
		{
			path += "\\";
		}
	}
	else
	{
		path += "\\";
	}
}

CString RemoveBackSlash(CString path)
{
	if (path.Find('\\') == 0)
		return path;
	int len = path.GetLength();
	path = path.Left(len - 1);
	return path;
}

//-----------------------------------------------------------------------------/
CString GetProgramPath(BOOL bAndExeName/*=FALSE*/)
{
	TCHAR szFullPath[MAX_PATH];
	::GetModuleFileName(NULL, szFullPath, MAX_PATH);
	//CString path = justPath(szFullPath);
	CString path = szFullPath;
	if (!bAndExeName)
	{
		path = justPath(path);
		AddBackSlash(path);
	}
	return path;
}

Re: Everyone.

John Uhlenbrock9-Jul-01 7:05

John Uhlenbrock

9-Jul-01 7:05

Thanks for all the input. Just to let you all know, GetCurrentDirectory() doesn't cut it, your current working directory seems to have nothing to do with your exe path. Anyway, the easiest way I found is shown below.

CString File;

GetModuleFileName(NULL, File.GetBuffer(MAX_PATH), MAX_PATH);
File.ReleaseBuffer(File.ReverseFind('\\') + 1);

If the exe path was say... "c:\my documents\code\program\app.exe", the File CString is "c:\my documents\code\program\"

RE: John Simmons / outlaw programmer (or anyone else who knows how to...)

How do you get your code to show up like that on a message? (With the yellow background, and formatting in-tact)

THANKS!
John

Simulate a carriage return

RobJones5-Jul-01 10:12

RobJones

5-Jul-01 10:12

Is it possible to simulate a carriage return in VC++? Basically I’m trying to have my application "push the enter key" on a specified event.

Thanks in advance for your help! Big Grin | :-D

Rob

Re: Simulate a carriage return

Christian Graus5-Jul-01 12:16

Christian Graus

5-Jul-01 12:16

Do you want to add a carriage return to a text box, push OK, or what ?

Christian

#include "std_disclaimer.h"

People who love sausage and respect the law should never watch either one being made.

The things that come to those who wait are usually the things left by those who got there first.

Re: Simulate a carriage return

Julien5-Jul-01 13:34

Julien

5-Jul-01 13:34

Try
this->PostMessage(WM_OK);
Or if you want to SEE the click, your going to have get Spy++ out
and capture all the WM_COMMAND message & parameters and figure out
which one(s) to Post/Send to the window.

Julien.

Re: Simulate a carriage return

C~~MFC6.0~~VS.NETUser6-Jul-01 4:49

C~~MFC6.0~~VS.NETUser

6-Jul-01 4:49

To simulate a carriage return all you need to do is called CWnd::GetWindowText() giving the CString obj you want to fill. Next you append the "\n" (Newline Character in C/C++) to the end of the CString obj using the "+=" operator. Lastly, you use CWnd::SetWindowText().

This is for MFC only.

Check MSDN on how to use CWnd::GetWindowText(), the "+=" operator, and CWnd::SetWindowText().

Beginner Question

Dan Madden5-Jul-01 9:55

Dan Madden

5-Jul-01 9:55

Can anyone tell me how to convert a:

BYTE *btArray ==> CStringArray

I would really appreciate it.

Thanks in advance,

Dan

Re: Beginner Question

Pavlos Touboulidis5-Jul-01 10:29

Pavlos Touboulidis

5-Jul-01 10:29

Hmm. I believe you need to convert it to a CString, not to a CStringArray.
CString is a string class (like the STL 'string'), while CStringArray is an array of strings (like an STL 'vector<string>').

I guess btArray is a pointer to an array of characters (a 'C' string).
To convert it to a CString, this should be enough:
CString s = btArray;

CStringArray can hold many CStrings, and it resizes dynamically.
You can, for example: CStringArray sa; sa.Add(s); sa.Add("Hello");
After this, sa[0] is a CString and you can do:
sa[0] = "SomeString";
printf("My String is: %s\n", (LPCTSTR)sa[0]);

Hope this helps,
Pavlos

Re: Doesn't Work

Dan Madden5-Jul-01 17:38

Dan Madden

5-Jul-01 17:38

Doesn't work...I get:

const CString& CString::operator=(LPCTSTR lpsz)
{
ASSERT(lpsz == NULL || AfxIsValidString(lpsz)); <=========== Error is here!
AssignCopy(SafeStrlen(lpsz), lpsz);
return *this;
}

HERE is an example of the code:

//BYTE btArr[3] = {67,245,67}; <========= I can see this!

BYTE *btArr = lpVal[3].Value.bin.lpb;

CString s = _T("");
s = btArr; <=========================== Error!
s = lpVal[3].Value.bin.lpb[0]; <======== Error!
MessageBox(0,s,"",0);

Thanks in advance,

Dan

Re: Doesn't Work

Mike Burston5-Jul-01 18:11

Mike Burston

5-Jul-01 18:11

>> AfxIsValidString(lpsz)
This function checks if the address you have passed in points to memory that your program has 'read' access to. This routine looks for a terminating NULL char, since all valid 'C' and windows strings must have terminating NULL. All characters between the starting address and the terminating NULL must be in valid 'read' access memory.

Looking at your samp,e code, you appear to be passing the address of an array that has no terminating NULL, so this is why the attempt to load the CString from this memory is failing.

The bigger question is why you want to load and array 'byte' data, which does not appear to be a valid string value, into a CString ??

Re: Doesn't Work

Dan Madden5-Jul-01 18:25

Dan Madden

5-Jul-01 18:25

I have written a program that processes mails from Outlook into a Database. I noticed that the Messages are being cut off after 255 characters. When reading the message text I am using:

"CString csBody = lpVal[3].Value.lpszA;" which gives be only 255. another value is:

"lpVal[3].Value.bin.lpb;" which returns a LPBYTE...see below (from MSDN). I have also looked at "lpVal[3].Value.bin.cb;" which returns "8792808"?? I am basically really confused!

typedef struct _SBinary
{
ULONG cb;
LPBYTE lpb;
} SBinary, FAR *LPSBinary;

Members
cb
Count of bytes in the lpb member.

lpb
Pointer to the PT_BINARY property value.

Thanks in advance,

Dan

Re: Doesn't Work

Mike Burston5-Jul-01 18:42

Mike Burston

5-Jul-01 18:42

Ok. You will need to rethink this, or approach things fromn another angle. The "lpVal[3].Value.bin.lpb" variable is NOT a suitable pointer to initialize a CString with. By definition, a CString is useful for holding NULL terminated plain text. It IS possible to make a CString hold binary info, but that's a topic for another day (and a much longer discussion!)

What you need to do first is find out why you only get 255 chars from the "lpVal[3].Value.lpszA" pointer. I don't knowe the Outlook format at all, but this sounds like the data you want - yet it's being truncated. Chase that down first.

If you find that you really do need to process the binary data in order to get the full body of text (sounds strange, but might be true), then I'd suggest the STL vector (or perhaps stringstream) as a better container for working with the binary data you want to process.

Re: Doesn't Work

Dan Madden5-Jul-01 19:20

Dan Madden

5-Jul-01 19:20

Thanks for you help...because I took a look from a far, I can now read the entire body of the message. The way I did this was first of all, I "Read the ____ing Manual". MAPI says that if you have a large message to read, you should do the following (I felt you deserved how I got it to work!:

hr = pmsgRoute->OpenProperty(PR_BODY, STGM_READ, (LPUNKNOWN FAR *) &lpstreamBody);
if(S_OK != GetScode(hr))
{
DebugTraceResult(OpenProperty, hr);
goto err;
}

hr = lpstreamBody->Stat(&statstg, STATFLAG_NONAME);
if(S_OK != GetScode(hr))
{
DebugTrace("IStream::Stat failed");
goto err;
}

Assert(statstg.cbSize.HighPart == 0);
if(MAPIAllocateBuffer(statstg.cbSize.LowPart + 1, (LPVOID FAR *) &lpszNoteText))
{
goto err;
}

hr = lpstreamBody->Read(lpszNoteText, statstg.cbSize.LowPart, &cb);
if(S_OK != GetScode(hr))
{
DebugTrace("IStream::Read failed");
goto err;
}

lpszNoteText[statstg.cbSize.LowPart] = '\0';
SetDlgItemText(hDlg, IDC_RTNOTE, lpszNoteText);

MAPIFreeBuffer(lpszNoteText);
lpszNoteText = NULL;
lpstreamBody->Release();
lpstreamBody = NULL;

Thanks in advance,

Dan

pointer to a function

5-Jul-01 9:13

I have declared a pointer to a function like this :
double (*pF)(double);

I have a function in a class CTest declared like this : double CTest::Compute(double);

the following code : pF =&Compute, doesn't work ????

The message error is :
"& : illegal operation on bound member function expression"
for compiler the function nammed Compute is Virtual...

So, How can I point a class member function ???

Leon

Re: pointer to a function

C^hris L^osinger5-Jul-01 9:26

C^hris L^osinger

5-Jul-01 9:26

in general, you can't use member functions with function pointers unless the function is declared "static".

-c

------------------------------
Smaller Animals Software, Inc.
http://www.smalleranimals.com

Re: pointer to a function

KingsGambit5-Jul-01 18:00

KingsGambit

5-Jul-01 18:00

There is no need of assigning the address like pF = &Compute;
The right way is pF = Compute;

Re: pointer to a function

5-Jul-01 18:28

Because the type of the Compute function is double (CTest::*)(double).

--Mike--
http://home.inreach.com/mdunn/
"Holding the away team at bay with a non-functioning phaser was an act of unmitigated gall. I admire gall."
-- Lt. Cmdr. Worf

Re: pointer to a function

8-Jul-01 11:03

Hi,
You need to write pF = Compute, and not pF =&Compute.
Lose the & .

I hope that helps Cool | :cool:

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