CLOSE: Difference between revisions
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(Created page with "CLOSE closes an open file or port using the number(s) assigned in an OPEN statement. {{PageSyntax}} : CLOSE [{{Parameter|fileNumber}}[, ...]] {{Parameters}} * {{Parameter|fileNumber}} indicates the file or list of file numbers to close. When not specified, all open files are closed. {{PageDescription}} * A file must be closed when changing to another file mode. * CLOSE files when they are no longer needed, in order to save memory. * Files cannot be...") |
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[[CLOSE]] closes an open file or port using the number(s) assigned in an [[OPEN]] statement. | [[CLOSE]] closes an open file or port using the number(s) assigned in an [[OPEN]] statement. | ||
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* Will not return an error if a filenumber is already closed or was never opened. It does not verify that a file was closed. | * 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]] can be used to close all open files. | * [[CLEAR]] can be used to close all open files. | ||
* [[CLOSE]] can also be used to close an open TCP/IP connection using a handle returned by '''QB64'''. | * [[CLOSE]] can also be used to close an open TCP/IP or HTTP connection using a handle returned by '''QB64'''. | ||
Revision as of 07:48, 6 January 2023
CLOSE closes an open file or port using the number(s) assigned in an OPEN statement.
Syntax
- CLOSE [fileNumber[, ...]]
- fileNumber indicates the file or list of file numbers to close. When not specified, all open files are closed.
Description
- A file must be closed when changing to another file mode.
- CLOSE files when they are no longer needed, in order 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 can be used to close all open files.
- CLOSE can also be used to close an open TCP/IP or HTTP connection using a handle returned by QB64.
See also