Sends a trigger to the waiting device when you choose a software version of Start trigger. You can also use this function to override a hardware trigger.

Syntax

int32 __stdcall RFmxInstr_SendSoftwareEdgeStartTrigger(niRFmxInstrHandle instrumentHandle, char selectorString[])

Remarks

This function returns an error if:

  • You configure an invalid trigger.

  • You have not previously called the RFmx Initiate function.

Parameters

NameDirectionTypeDescription
instrumentHandle[in]niRFmxInstrHandle

This parameter identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.

selectorString[in]char

Specifies a selector string. Pass an empty string.

Returns

Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. Examine the status code from each call to an RFmx function to determine if an error has occurred.

To obtain a text description of the status code and additional information about the error condition, call the RFmxInstr_GetError function.

The general meaning of the status code is as follows:

Value

Meaning

0

Success

Positive Values

Warnings

Negative Values

Errors