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Purpose
Κ
To open (r+) a file and get the file for further processing.
Syntax
Κ
F% = OPENUP filename$
Example
Κ
FilePath$="C:\DATA\Test.DAT"
fileID%=OPENUP FilePath $
Description
Κ
F%
is sn integer variable to be assigned to the result.
F%
Meaning
0
Open file failed.
Other
Open successfully. It returns the file.
filename$
is a string variable, indicating the file path.
In case of error, open will return an integer value of 0. You
can use the GET_FILE_ERROR command to get the file
error code. Possible error codes and their interpretation are
listed below:
GET_FILE_ERROR Meaning
1
Filename is a NULL string.
6
Can't create file because the
maximum number of files
allowed in the system is
exceeded.
File path error.
Purpose
Κ
To close a file.
Syntax
Κ
CLOSE # F%
Example
Κ
CLOSE # FILEID%
Description
Κ
F%
is an integer indicating the file handle.
You can use the GET_FILE_ERROR command to get the
file error code. Possible error codes and their interpretation
are listed below:
GET_FILE_ERROR Meaning
2
File specified does not exist.
8
File not opened
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