GxDmmGetExternalTriggers

Purpose

Returns the external trigger configuration

Syntax

GxDmmGetExternalTriggers (nHandle, pdwTriggerDirections, pdwTriggerEdges, pnStatus)

Parameters

Comments

The dwTriggerDirections is a 20 bit long field that determines the directionality of each external trigger. Each bit in the field represents the enable bit for a particular trigger and direction. A ‘1’ indicates enabled and a ‘0’ indicates disabled. By default all bits are set to ‘0’. The fields are described in the following table:

dwTriggerDirections Bit Field

The dwTriggerEdges is a 11 bit long field that determines the edge sensitivity of each external trigger. Each bit in the field represents the edge selected to use for triggering. A ‘1’ indicates rising edge and a ‘0’ indicates falling edge. By default all bits are set to ‘0’. The fields are described in the following table:

dwTriggerEdges Bit Field

Example

The following example gets all the trigger directions and all edge sensitivities to Rising Edge:

SHORT nHandle, nStatus;

GxDmmGetExternalTriggers (nHandle, &dwTriggerDirections, &dwTriggerEdges, &nStatus);

See Also

GxDmmSetExternalTriggers, GxDmmSetTriggerMode, GxDmmGetTriggerMode, GxDmmReadArray, GxDmmGetReadArrayStatus, GxDmmAbortReading, GxDmmSetRange, GxDmmGetRange, GxDmmSetFunction, GxDmmGetFunction, GxDmmGetErrorString