Disabling Unused Extensions
IviPwrMeter Class Driver
When you call the IviPwrMeter_init, the IviPwrMeter_InitWithOptions, or the IviPwrMeter_Reset VI, the class driver disables extension capability groups that the program does not use by setting of the unused extension group to values that disable that extension group.
The class driver disables extension capability groups by setting the following to the noted default values:
| Unused Extension Group | Property | Value |
|---|---|---|
| IviPwrMeterChannelAcquistion | IVIPWRMETER_ATTR_CHANNEL_ENABLED | False |
| IviPwrMeterTriggerSource | IVIPWRMETER_ATTR_TRIGGER_SOURCE | Immediate |
| IviPwrMeterDutyCycleCorrection | IVIPWRMETER_ATTR_DUTY_CYCLE_CORRECTION_ENABLED | False |
| IviPwrMeterReferenceOscillator | IVIPWRMETER_ATTR_REFERENCE_OSCILLATOR_ENABLED | False |
 |
Note |
The following extension groups are not disabled by the IviPwrMeter driver: