Open data files with the Reset, Rewrite and Open commands listed on pages
9-3 thru 9-5 of the Pascal Reference Manual. When accessing your data file,
be sure to use a proper name. The correct format for "title" is "VolumeName:
FileName", where VolumeName is the name of the diskette on which your file
resides and FileName is the name of the file (see page 9-25).
If you do not know the name of the volume or file, use the OldFileName
function to search for the file; alternatively, create a new file with
NewFileName. OldFileName allows you to choose from a dialog box the existing
files on any number of diskettes. The returned string value from these
routines can then be used in a Reset, Rewrite, or Open command. Refer to
page 9-26 for additional descriptions of these functions.
A possible area of confusion is with the variable-reference parameter in
the Reset, Rewrite and Open commands, "f". This variable-reference is a
reference to the file being accessed--for example, the command Open(TheFile,
"Volume1:Inventory") opens the file "Inventory" on the diskette named
"Volume1" and sets the variable-reference "TheFile" so that it refers to that
particular file. Commands such as Get(TheFile), Put(TheFile) and Close
(TheFile), all access this file.