How to get the files size in directory.

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Hello all,

Please tell me how to get the files size in specific directory. I read GetDiskFreeSpace() it will return available free space in given drive like C:\. I want to calculate how much size the files occupied in c:\MyFolder. I have number of files in MyFolder, I want to calculate the total no of files size. Is there any function to get the size of a directory. Please tell me.

Thank u all.

Posted 15-Oct-12 19:44pm

vallikelam

Updated 15-Oct-12 19:59pm

v2

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3 solutions

Solution 1

XML

#include <stdio.h>
#include <sys/types.h>
#include <dirent.h>

int main (void)
{
  DIR *dp;
  int i;
  struct dirent *ep;
  dp = opendir ("./");

  if (dp != NULL)
  {
    while (ep = readdir (dp))
      i++;

    (void) closedir (dp);
  }
  else
    perror ("Couldn't open the directory");

  printf("There's %d files in the current directory.\n", i);

  return 0;
}

Posted 15-Oct-12 19:48pm

Mukesh_Chauhan

Comments

vallikelam 16-Oct-12 2:01am

Hello Mukesh kumar thanks for your response. I want total size of files in a directory.

Solution 2

Firstly, you need to get the total no. of files. Then get size of each file.

To get total no. of files, you can use FindFirstFile/FindNextFile (FindNextFile needs to be called in a loop, until all files have been processed).

See: http://msdn.microsoft.com/en-us/library/windows/desktop/aa365200(v=vs.85).aspx[^] for a sample using FindFirstFile/FindNextFile.

Then use GetFileSizeEx to get size of each file.

If you are using MFC, you can use CFileFind class instead of FindFirstFile and FindNextFile.

Posted 15-Oct-12 20:21pm

manoranjan

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Santhosh G_ · Accepted Answer · 2012-10-15T20:21:00

Solution 3

http://www.codeproject.com/Articles/19142/XFolderSize-A-class-to-determine-folder-size.
If you can use Win32, this might be helpful to get the file size.

Posted 15-Oct-12 20:21pm

Santhosh G_

Comments

vallikelam 17-Oct-12 8:31am

Hi I downloaded this file and try to build the application it is showing below error
error C2065: 'GetFileSizeEx' : undeclared identifier
My system is running on windows 7, using VS 6 and also i included the Kernel32.lib in project settings still I am getting the error. Please solve the problem.

Santhosh G_ 17-Oct-12 9:09am

http://msdn.microsoft.com/en-us/library/windows/desktop/aa364957(v=vs.85).aspx
Please check Community Additions section, Details of using this API with VS 6.0 is explained. You have to use LoadLibrary to access this library,

vallikelam 18-Oct-12 2:59am

Thanks a lot its working fine.