<Source>.UnlockRecNum (Function)

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<Source>.UnlockRecNum (Function)

In french: <Source>.DébloqueNumEnr

Not available with these kinds of connection

Unlocks a record locked by:

the <Source>.LockRecNum function,
a read function used with a locking parameter (for example, <Source>.Read used with the hLockWrite or hLockReadWrite constant).

Remark: <Source>.UnlockRecNum does not unblock a record locked by another application.

Versions 16 and later

This function is now available for Java applications.

This function is available for HFSQL data files only. It is not available for the data files accessed by JDBC.

Versions 18 and later

This function is now available in Windows Store apps mode.

Versions 21 and later

This function is now available for Universal Windows Platform applications.

Example

// Lock
Customer.LockRecNum(hRecNumCurrent, hLockReadWrite)
// Modify the record
...
// Unlock
Customer.UnlockRecNum(hRecNumCurrent)

Syntax

<Result> = <Source>.UnlockRecNum([<Record number>])

<Result>: Boolean

True if the record was unlocked,
False if a problem occurs. HError is used to identify the error.

<Source>: Type corresponding to the specified source

Name of the data file used.

<Record number>: Optional integer

Number of the record to unlock.
If this number is not specified (or is equal to 0 or to the hCurrentRecNum constant), <Source>.UnlockRecNum will read the current record.
<Source>.UnlockRecNum unlocks the current record only. You cannot specify a record number other than the current one (to specify the current record number, use the hRecNumCurrent constant).

Remarks

<Source>.UnlockRecNum has no effect if:

The data file is in single-user mode (see <Source>.Mode).
The record is not locked.

Component: wd290hf.dll