FileSize

FileSize

Determines the size of a file

Syntax

      FileSize([<cFileMap>, [<FileAttr>]]) --> <nFileSiz>

Arguments

<cFileMap> : Designates the file name, path, and drive designation.

<FileAttr> : Designates the file attribute that is explained in the table below. The default value is 0. () : If the function is called without parameters, it returns the file size from the current FileSeek() buffer.

Returns

<nFileSiz> : a numeric value designated file’s size, the size from the FileSeek() buffer (when called without a parameter), or -1.

Description

Implement FileSize() alone or in conjunction with FileSeek(). If the function is called with the <cFileMap> parameter, it returns the size of the first entry found. If no matching entry is available, then a value of -1 is returned

When called without parameters, FileSize() returns the size of the most recent file found with FileSeek(). Used in conjunction with FileSeek(), you can also determine the size of file groups (wildcards).

You can designate the attribute for the desired file in numeric form:

          Coding the File Attribute
          ----------------------------------------------------------------
          Value   Symb. constants     Assigned attribute
          ----------------------------------------------------------------
          0       FA_NORMAL
          1       FA_READONLY         READ ONLY (Read-only)
          2       FA_HIDDEN           HIDDEN (Hidden files)
          4       FA_SYSTEM           SYSTEM (System files)
          32      FA_ARCHIVE          ARCHIVE (Changes since last backup.)
          ----------------------------------------------------------------

Specify only the SYSTEM, HIDDEN, VOLUME, or DIR attributes for an entry to be found. If multiple attributes are implemented simul-taneously, the table values are added accordingly. Of course, not all combinations are useful.

Examples

      .  Show the size of a particular file:

         ? FileSize("C:\TEXT\TEXT.TXT")      // File size or -1

      .  The size of an ARCHIVE/HIDDEN file:

         ? FileSize("C:\HIDE.TXT", 34")      // File size or -1

      .  Used in conjunction with FileSeek():

         cFile  :=  FileSeek(C:\TEXT.TXT")
         DO WHILE .NOT. EMPTY(cFile)
            ? cFile, FileSize()              // File name and size
            cFile  := FileSeek()             // Search for next entry
         ENDDO

Seealso

FileSeek(), FileAttr(), FileDate(), FileTime()

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