🚀 go-pugleaf

Some ideas here:
http://www.codeproject.com/file/filesize.asp
HTH Pete

"Robert G. Hoover" <not.a.real.address@anywhere.sorry> wrote 
in message news:46923739@newsgroups.borland.com...
> Hi All,
>
> I'm sure there's a simple answer to this silly question... 
> my apologies...
>
> How can I get the size of a file in bytes given it's 
> absolute filename? I'd
> rather not open the file and perform a FileSeek to the end 
> to determine the
> size... I need something quick, no overhead... does such a 
> function exist?
> Something like GetFileSizeInBytes(Ansistring FileName)?

Robert G. Hoover wrote:
> I'm sure there's a simple answer to this silly question... my apologies...
>
> How can I get the size of a file in bytes given it's absolute filename? 
> I'd
> rather not open the file and perform a FileSeek to the end to determine 
> the
> size... I need something quick, no overhead... does such a function exist?
> Something like GetFileSizeInBytes(Ansistring FileName)?

If you are ok with Win98 and higher, you could use the GetFileAttributesEx 
function. Eg:

WIN32_FILE_ATTRIBUTE_DATA FileAttr;

if( GetFileAttributesEx( FileName, GetFileExInfoStandard, &FileAttr ) )
{
    LARGE_INTEGER li;
    li.LowPart = FileAttr.nFileSizeLow;
    li.HighPart = FileAttr.nFileSizeHigh;

    unsigned __int64 FileSizeInBytes = li.QuadPart;


}

Otherwise you'll have to open the file with CreateFile, then use GetFileSize 
on the handle.

HTH

Jon 

See if this does what you want.  If it does not find the file or if the file 
does not have a size (directories and labels do not report size) then the 
returned value is zero.

-------------------------------------
#include <vcl.h>

__int64 __fastcall SizeOfFile(const char *file_name);

inline __int64 SizeOfFile(AnsiString & as)
  {
  return SizeOfFile(as.c_str());
  }

const HANDLE BAD_FIND_VALUE =
  reinterpret_cast<HANDLE>(INVALID_HANDLE_VALUE);

__int64 __fastcall SizeOfFile(const char *file_name)
  {
  WIN32_FIND_DATA wfd;
  HANDLE find_hand = ::FindFirstFile(file_name, &wfd);
  __int64 result = 0;

  if (find_hand != BAD_FIND_VALUE)
    {
    result = (static_cast<__int64>(wfd.nFileSizeHigh) << 32) |
      wfd.nFileSizeLow;
    }

  return result;
  }
-------------------------------------

.  Ed

> Robert G. Hoover wrote in message
> news:46923739@newsgroups.borland.com...
>
> I'm sure there's a simple answer to this silly question... my apologies...
>
> How can I get the size of a file in bytes given it's absolute filename? 
> I'd
> rather not open the file and perform a FileSeek to the end to determine 
> the
> size... I need something quick, no overhead... does such a function exist?
> Something like GetFileSizeInBytes(Ansistring FileName)?

Corrected version:

See if this does what you want.  If it does not find the file or if the file
does not have a size (directories and labels do not report size) then the
returned value is zero.

-------------------------------------
#include <vcl.h>

__int64 __fastcall SizeOfFile(const char *file_name);

inline __int64 SizeOfFile(AnsiString & as)
 {
 return SizeOfFile(as.c_str());
 }

const HANDLE BAD_FIND_VALUE =
 reinterpret_cast<HANDLE>(INVALID_HANDLE_VALUE);

__int64 __fastcall SizeOfFile(const char *file_name)
 {
 WIN32_FIND_DATA wfd;
 HANDLE find_hand = ::FindFirstFile(file_name, &wfd);
 __int64 result = 0;

 if (find_hand != BAD_FIND_VALUE)
   {
   result = (static_cast<__int64>(wfd.nFileSizeHigh) << 32) |
     wfd.nFileSizeLow;
   ::FindClose(find_hand); // CORRECTION - added
   }

 return result;
 }
-------------------------------------
>
> .  Ed
>
>> Robert G. Hoover wrote in message
>> news:46923739@newsgroups.borland.com...
>>
>> I'm sure there's a simple answer to this silly question... my 
>> apologies...
>>
>> How can I get the size of a file in bytes given it's absolute filename? 
>> I'd
>> rather not open the file and perform a FileSeek to the end to determine 
>> the
>> size... I need something quick, no overhead... does such a function 
>> exist?
>> Something like GetFileSizeInBytes(Ansistring FileName)?
>
> 

"Robert G. Hoover" <not.a.real.address@anywhere.sorry> wrote in message
news:46923739@newsgroups.borland.com...

> How can I get the size of a file in bytes given it's absolute filename?

You have two options:

1) open the file with CreateFile() and then query the size with
GetFileSize().

2) if you do not want to open the file, then use FindFirstFile() instead.
The file size is part of the returned WIN32_FIND_DATA structure.


Gambit

Outstanding!!! Guess you guys have run into this before. Thank you SO much for
the suggestions. That's one more little crescent wrench for the ol' back pocket!

Many thanks,

Rob