deleting all files from a folder

[kakan]

According to my experience, it's risky to do changes in a directory structure while doing a FindFirst/Findnext loop. I have had problems doing that (such as deleting the found files) in the past. IMO, ShFileOperation is safer, and I would use it.

Alcohol. The cause of, and the solution to, all of life's problems - Homer Simpson

[Tara14]

This is the program that I tried.

#include "afxdisp.h"

void main()
{

WIN32\_FIND\_DATA find;
char	aExePath\[\_MAX\_PATH\];
char	aDrive\[\_MAX\_DRIVE\];
char	aDir\[\_MAX\_DIR\];
CString	aPath;

::GetModuleFileName( AfxGetInstanceHandle(),aExePath,sizeof(aExePath));

\_splitpath(aExePath,aDrive,aDir,NULL,NULL);

aPath.Format("%s%s",aDrive,aDir);
aPath =  aPath + "sbh\_store";

SetCurrentDirectory(aPath); 
HANDLE handle=FindFirstFile("\*.mdb",&find);
do
DeleteFile(find.cFileName);
while(FindNextFile(handle,&find)!=0);
FindClose(handle);

}

Here I get the error

nafxcwd.lib(thrdcore.obj) : error LNK2001: unresolved external symbol __endthreadex
nafxcwd.lib(thrdcore.obj) : error LNK2001: unresolved external symbol __beginthreadex

When I comment out CString aPath; ::GetModuleFileName( AfxGetInstanceHandle(),aExePath,sizeof(aExePath)); I do not get the unresolved external symbol error. I guess I am missing something. Please can you tell me what I am not doing right. Have I missed out a header? -- modified at 5:40 Friday 18th August, 2006

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Fortitudine Vincimus!_

[Tara14]

I tried using SHFileOperation. But the program is crashing. This is what I did:

SHFILEOPSTRUCT del;

del.hwnd = NULL;
del.wFunc = FO\_DELETE;
del.pFrom = "C:\\\\temp\\\\\*.mdb";
del.fFlags = FOF\_FILESONLY;

SHFileOperation(&del);

Something is wrong here. I tried searching the net, but I am not able to figure it out. Please can you help me. Thanks.

_

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Fortitudine Vincimus!_

[prasad_som]

see this solution

Prasad Notifier using ATL

[Tara14]

OH! I got it!! The pTo member of the SHFILEOPSTRUCT structure shoud be assigned NULL! Thanks.

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Fortitudine Vincimus!_

[prasad_som]

you need to set del.pTo ,too. i.e. set it to NULL if you are not using it. code will be,

SHFILEOPSTRUCT del;
del.hwnd = NULL;
del.wFunc = FO_DELETE;
del.pFrom = "C:\\temp\\*.mdb";
del.fFlags = FOF_FILESONLY;
del.pTo = NULL;
SHFileOperation(&del);

Oh ! you got it right already. :) -- modified at 5:59 Friday 18th August, 2006

Prasad Notifier using ATL

[Tara14]

Ah! How did I miss it. Thanks a billion!

_

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Fortitudine Vincimus!_

[Kleser]

hi, i don't want to give you an answer, instead i would like to ask about how you can make your app create an mdb file. because this is what i trying to do right now. if you don't mind, would you share me you little secret? thanks in advance. cheers -- modified at 10:25 Friday 18th August, 2006

[Hamid Taebi]

Is your problem solve

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**_

WhiteSky

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[Tara14]

Hello, I use DAO to make the connection. There are some really nice samples that come in msdn. I wrote my own little class to do the stuff taking help from the samples. Here is the database creation part. My database needed to be locked with a password.

//////////////////////////////////////////////////////
/////////********* CREATE DATABASE ***********///////////////////////////

void CDBcreate::CreateDatabase(CString m_strDBName)
{

int dwOptions =0;
dwOptions |=dbVersion30;

//Release table if selected
if (m_pTableDef)
{
m_pTableDef->Close();
delete m_pTableDef;
m_pTableDef = NULL;
}

//close database if open
if (m_pDatabase)
{
m_pDatabase->Close();
delete m_pDatabase;
m_pDatabase=NULL;
}

//create new database
m_pDatabase = new CDaoDatabase;
m_pDatabase->Create(m_strDBName, dbLangGeneral,dwOptions);

CString strConnect( _T( ";pwd=" ) );
COleVariant NewPassword( "password", VT_BSTRT ),OldPassword( "", VT_BSTRT );
DAO_CHECK( m_pDatabase->m_pDAODatabase->NewPassword( V_BSTR( &OldPassword ),
V_BSTR( &NewPassword ) ) );
m_bOpen=TRUE; // flag of currently open table

}

/////////********* END CREATE DATABASE ***********///////////////////////////

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Fortitudine Vincimus!_

[Tara14]

Yes. Changing the settings helped. But there is something I do not understand. I used ::GetModuleFileName( AfxGetInstanceHandle(),aExePath,sizeof(aExePath)); in my application using mfc. There I had no problem. But in the C++ program that I wrote to delete files form a folder, AfxGetInstanceHandle() was causing assersion failure. I could'nt figure out why. When I changed it to NULL >::GetModuleFileName( NULL,aExePath,sizeof(aExePath)); it worked fine. Why?

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Fortitudine Vincimus!_