Difference between revisions of "OPEN"
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OPEN is used to open a file, COM(serial) or LPT(parallel) port. | OPEN is used to open a file, COM(serial) or LPT(parallel) port. | ||
| − | Open can use 5 different modes: | + | ''Syntax 1:'' OPEN FileName$ FOR Mode AS #FileNumber |
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| + | ''FileName$:'' as a string file name using the DOS 8.3 convention naming limits. | ||
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| + | ''Modes:'' Open can use 5 different modes: | ||
[[OUTPUT]]: Creates a new file or erases an existing file for program output | [[OUTPUT]]: Creates a new file or erases an existing file for program output | ||
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[[RANDOM]]: Creates a new file or uses input and/or output from an existing file | [[RANDOM]]: Creates a new file or uses input and/or output from an existing file | ||
[[INPUT]] : Only reads input from an existing file | [[INPUT]] : Only reads input from an existing file | ||
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| + | ''FileNumber:'' as an Integer number or value from [[FREEFILE]] | ||
Revision as of 07:47, 28 August 2009
OPEN is used to open a file, COM(serial) or LPT(parallel) port.
Syntax 1: OPEN FileName$ FOR Mode AS #FileNumber
FileName$: as a string file name using the DOS 8.3 convention naming limits.
Modes: Open can use 5 different modes:
OUTPUT: Creates a new file or erases an existing file for program output APPEND: Creates a new file or appends data output to an existing file BINARY: Creates a new file or uses input and/or output from an existing file RANDOM: Creates a new file or uses input and/or output from an existing file INPUT : Only reads input from an existing file
FileNumber: as an Integer number or value from FREEFILE