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Delphi Basics

CloseFile procedure

Closes a opened file where a opened file is handled by a variable file F. You must use CloseFile() as the last procedure before you leave and freeing a opened file.

Unit
System

Syntax:
procedure CloseFile(var F);

Where F is a file variable that has been opened.
Note: {$I+} handles runtime errors using exceptions. When using {$I-}, use IOResult to check for I/O errors.

example:
See read() example and write() example program

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