niFgen_CheckAttributeViReal64

NI-FGEN C Function

niFgen_CheckAttributeViReal64

ViStatus niFgen_CheckAttributeViReal64 (ViSession vi, ViConstString channelName, ViAttr attributeID, ViReal64 attributeValue);

Purpose

Checks the validity of a value you specify for a ViReal64 attribute.

Parameters

Input
Name Type Description
vi ViSession Identifies your instrument session. vi is obtained from the niFgen_init or the niFgen_InitWithOptions functions and identifies a particular instrument session.
channelName ViConstString Specifies the name of the channel on which to check the attribute value if the attribute is channel-based. If the attribute is not channel-based, then pass VI_NULL or an empty string ("").

Default Value: "" (empty string)

attributeID ViAttr Specifies the ID of an attribute.
attributeValue ViInt32 Specifies the value to which you want to set the attribute.
Note   Some of the values might not be valid depending on the current settings of the instrument session.
Default Value: None

Return Value

Name Type Description
Status ViStatus Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. You can examine the status code from each call to an NI-FGEN function to determine if an error occurred. To obtain a text description of the status code, call the niFgen_error_message function. To obtain additional information about the error condition, call the niFgen_GetError function. To clear the error information from NI-FGEN, call the niFgen_ClearError function.

The general meaning of the status code is as follows:

Value Meaning
0 Success
Positive Values Warnings
Negative Values Errors