_FILEEXISTS - QB64Official/qb64 GitHub Wiki

The _FILEEXISTS function determines if a designated file name exists and returns true (-1) or false (0).

Syntax

theFileExists% = _FILEEXISTS(filename$)

Description

  • The filename$ parameter can be a literal or variable STRING value that can include a path.
  • The function returns -1 when a file exists and 0 when it does not.
  • The function reads the system information directly without using a SHELL procedure.
  • The function will use the appropriate Operating System path separators. _OS$ can determine the operating system.
  • This function does not guarantee that a file can be accessed or opened, just that it exists.

Example(s)

Checks if a file exists before opening it.


IF _FILEEXISTS("mysettings.ini") THEN
    PRINT "Settings file found."
END IF

See Also