niHSDIO_UnlockSession
Specific Function
C Function Prototype
ViStatus niHSDIO_UnlockSession (ViSession vi, ViBoolean* callerHasLock);
Purpose
This function releases a lock that you acquired on an instrument session using niHSDIO_LockSession.
Parameters
| Name | Type | Description |
|---|---|---|
| vi | ViSession | This handle identifies your instrument session. vi was obtained from the niHSDIO_InitAcquisitionSession or niHSDIO_InitGenerationSession function. |
| callerHasLock | ViBoolean | This parameter serves as a convenience. If you do not want to use this parameter, pass VI_NULL. You can use this parameter in complex functions to track lock status and the need to unlock the session. Pass the address of a local ViBoolean variable in the declaration of the local variable and initialize it to VI_FALSE. Also, pass the address of the same local variable to any other calls you make to niHSDIO_LockSession or niHSDIO_UnlockSession in the same function. |