Getting File atributes in c++

purefan · 03-31-2005, 09:08 PM

heello!
im running VC++6 in Windows XP and...
I need to retrieve the file atributes from a variable number of files...atributes like last modified, size...
It is very important this since it is for a homework (for which I posted before but when I had a different issue).
I found on the MSDN something but works only under .NET framework and I dont have it...
Thank you soo much for the help

alred · 04-01-2005, 02:40 AM

have you tried

Code:

HANDLE FindFirstFile(LPCTSTR lpFileName, LPWIN32_FIND_DATA lpFindFileData);

BOOL FindNextFile(HANDLE hFindFile, LPWIN32_FIND_DATA lpFindFileData);

BOOL FindClose(HANDLE hFindFile);

the return values for lpFindFileData

typedef struct _WIN32_FIND_DATA {
DWORD dwFileAttributes;
FILETIME ftCreationTime;
FILETIME ftLastAccessTime;
FILETIME ftLastWriteTime;
DWORD nFileSizeHigh;
DWORD nFileSizeLow;
DWORD dwReserved0;
DWORD dwReserved1;
TCHAR cFileName[ MAX_PATH ];
TCHAR cAlternateFileName[ 14 ];
} WIN32_FIND_DATA;

if working on single file then you can try

Code:

DWORD GetFileSize(   HANDLE hFile,  LPDWORD lpFileSizeHigh );
BOOL GetFileTime( HANDLE hFile, LPFILETIME lpCreationTime, LPFILETIME lpLastAccessTime, LPFILETIME lpLastWriteTime);

check your VC++ documentation for examples for these functions.
not sure these can work for you but be aware that your visual C++ might have simpler and faster "builtin" file handling functions.Better check your documentation

good luck to your homework

purefan · 04-01-2005, 10:05 AM

Great!!
well I managed to get the attributes I need in a very simple way:

Code:

	WIN32_FILE_ATTRIBUTE_DATA  wfad;

GetFileAttributesEx(TEXT("C:\\mybats\\pro.bat"), GetFileExInfoStandard, &wfad);

printf("Size of pro.bat is %u\n", wfad.ftLastWriteTime);

That is all!
simple as that, and while writting the wfad in the printf (for example) since this is a class at least in VC++6 it shows the functions withing that class, and so you are able to just get the size or other things you might want to retrieve. simple...yet not obvious, to me at least.
Thank for answering!!

alred · 04-01-2005, 10:39 AM

glad to hear that
things couldn't get any more simpler than that !!