Queries the value of an RFmx 32-bit unsigned integer (uInt32) attribute.

Syntax

int32 __stdcall RFmxBT_GetAttributeU32(niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeId, uInt32 *attrVal)

Parameters

NameDirectionTypeDescription
instrumentHandle[in]niRFmxInstrHandle

Identifies the RFmx session. You can obtain this parameter from the RFmxBT_Initialize function.

selectorString[in]char

Comprises the signal name. If you do not specify the signal name, the default signal instance is used.

Example:

""

"signal::sig1"

You can use the RFmxBT_BuildSignalString function to build the selector string.

attributeId[in]int32

Pass the ID of an attribute.

attrVal[out]uInt32 *

Returns the current value of the attribute.

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 RFmxBT_GetError function.

The general meaning of the status code is as follows:

Value

Meaning

0

Success

Positive Values

Warnings

Negative Values

Errors