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https://github.com/QB64-Phoenix-Edition/QB64pe.git
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31 lines
1.3 KiB
Plaintext
31 lines
1.3 KiB
Plaintext
{{QBDLDATE:05-20-2022}}
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{{QBDLTIME:23:17:13}}
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This statement opens access to parts or all of a file to other programs and network users.
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{{PageSyntax}}
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: [[UNLOCK]] [#]{{Parameter|fileNumber%}}
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: [[UNLOCK]] [#]{{Parameter|fileNumber%}}, {{Parameter|record&}}
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: [[UNLOCK]] [#]{{Parameter|fileNumber%}}, [{{Parameter|firstRecord&}}] TO {{Parameter|lastRecord&}}
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{{PageDescription}}
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* {{Parameter|fileNumber%}} is the file number of the file to unlock.
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* In the first syntax, the entire file is unlocked.
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* In the second syntax, {{Parameter|record&}} is the record number of the file to unlock.
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* In the third syntax, the records or bytes in the range [{{Parameter|firstRecord&}},{{Parameter|lastRecord&}}] are unlocked. If {{Parameter|firstRecord&}} is omitted, it is assumed to be the first record or byte.
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* For files opened in [[BINARY]] mode, each record corresponds to a single byte.
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* [[LOCK]] and [[UNLOCK]] statements are always used in pairs and each statement must match the other one.
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* Files must be unlocked before other programs can access them, and before the file is closed.
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* [[Keywords_currently_not_supported_by_QB64#Keywords_Not_Supported_in_Linux_or_MAC_OSX_versions|Keyword Not Supported in Linux or MAC versions]]
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{{PageSeeAlso}}
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* [[LOCK]]
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* [[OPEN]]
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* [[ACCESS]]
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{{PageNavigation}}
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