CLOSE - QB64 Wiki


From QB64 Wiki

Jump to: navigation, search

CLOSE closes an opened file or port using the number(s) assigned in an OPEN statement.


CLOSE [filenumber[, ...]]


  • filenumber indicates the file or list of file numbers to close. When not designated all files are closed.


  • A file MUST be closed when changing to another file mode.
  • CLOSE files when they are no longer needed to save memory.
  • Files cannot be opened in the same OPEN mode using another number until the first one is closed.
  • Use holding variables for each file number returned by FREEFILE so that the file reference is known.
  • Will not return an error if a filenumber is already closed or was never opened. It does not verify that a file was closed.
  • CLEAR will also close all open files.
  • CLOSE can also be used to close an open TCP/IP connection using a handle returned by QB64.

See also:

Go to Keyword Reference - Alphabetical
Go to Keyword Reference - By usage
Go to Main WIKI Page
Personal tools