Ivi_QueryInstrStatus
Usage
ViBoolean = Ivi_QueryInstrStatus(ViSession vi);
Purpose
This function returns the current value of the IVI_ATTR_QUERY_INSTRUMENT_STATUS attribute for the session you specify.
Use Ivi_QueryInstrStatus in the high-level functions in specific instrument drivers. Ivi_QueryInstrStatus provides fast, convenient access to the IVI_ATTR_QUERY_INSTRUMENT_STATUS attribute because it does no error checking and does not lock the session.
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Note Do not call this function unless you have already locked the session. |
Parameters
| Name | Type | Description |
|---|---|---|
| vi | ViSession |
The ViSession handle that you obtain from Ivi_SpecificDriverNew. The handle identifies a particular IVI session. |
Return Value
Returns the value of the IVI_ATTR_QUERY_INSTRUMENT_STATUS attribute for the session. This attribute determines whether or not to query the instrument error status after each operation.
Values:
| VI_TRUE (1) | Query instrument status |
| VI_FALSE (0) | Do not query instrument status |
If you pass an invalid session handle to the function, this parameter returns VI_FALSE.