FT_DSKFREE()
 Return the amount of available disk space
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 Syntax

      FT_DSKFREE( [ <cDrive> ] ) -> nSpaceAvail

 Arguments

     <cDrive> is the fixed disk to query. If no parameter is passed
     the operation will be performed on the default drive.  Do not
     include the ":".

 Returns

     Integer representing the available disk space in bytes.

 Description

     Function to return the available space on the passed
     drive letter or the default drive if no drive is passed.

     Uses FT_INT86() through the internal function _ftDiskInfo().

 Examples

     ? FT_DSKFREE()  // Returns free space on default drive.

 Source: DISKFUNC.PRG

 Author: Robert A. DiFalco