IviScope_ConfigureTVTriggerLineNumber

CVI/LabWindows IVI Class Driver

IviScope_ConfigureTVTriggerLineNumber

IviScopeTVTrigger Capability Group

C Function Prototype

ViStatus IviScope_ConfigureTVTriggerLineNumber (ViSession vi, ViInt32 tvLineNumber);

Purpose

This function configures the TV line upon which the oscilloscope triggers. The line number is absolute and not relative to the field of the TV signal.

This function affects instrument behavior only if the trigger type is set to the IVISCOPE_VAL_TV_TRIGGER value and the TV trigger event is set to the IVISCOPE_VAL_TV_EVENT_LINE_NUMBER value. Call the IviScope_ConfigureTVTriggerSource function to set the TV trigger event before calling this function.

Parameters

Name Type Description
vi ViSession The instrument handle that you obtain from the IviScope_init or IviScope_InitWithOptions functions. The handle identifies a particular IVI session.
tvLineNumber ViInt32 Specifies the TV trigger line number. The driver sets the IVISCOPE_ATTR_TV_TRIGGER_LINE_NUMBER attribute to this value.

Return Values