• Set Attributes
  • RFmxInstr_SetAttributeString
  • RFmxInstr_SetAttributeI8
  • RFmxInstr_SetAttributeU8
  • RFmxInstr_SetAttributeI16
  • RFmxInstr_SetAttributeU16
  • RFmxInstr_SetAttributeI32
  • RFmxInstr_SetAttributeU32
  • RFmxInstr_SetAttributeI64
  • RFmxInstr_SetAttributeF64
  • RFmxInstr_SetAttributeF32
  • RFmxInstr_SetAttributeI8Array
  • RFmxInstr_SetAttributeI32Array
  • RFmxInstr_SetAttributeI64Array
  • RFmxInstr_SetAttributeU8Array
  • RFmxInstr_SetAttributeU32Array
  • RFmxInstr_SetAttributeF32Array
  • RFmxInstr_SetAttributeF64Array
  • RFmxInstr_SetAttributeNIComplexSingleArray
  • RFmxInstr_SetAttributeNIComplexDoubleArray
• Get Attributes
  • RFmxInstr_GetAttributeString
  • RFmxInstr_GetAttributeI8
  • RFmxInstr_GetAttributeU8
  • RFmxInstr_GetAttributeI16
  • RFmxInstr_GetAttributeU16
  • RFmxInstr_GetAttributeI32
  • RFmxInstr_GetAttributeU32
  • RFmxInstr_GetAttributeI64
  • RFmxInstr_GetAttributeF64
  • RFmxInstr_GetAttributeF32
  • RFmxInstr_GetAttributeI8Array
  • RFmxInstr_GetAttributeI32Array
  • RFmxInstr_GetAttributeI64Array
  • RFmxInstr_GetAttributeU8Array
  • RFmxInstr_GetAttributeU32Array
  • RFmxInstr_GetAttributeF32Array
  • RFmxInstr_GetAttributeF64Array
  • RFmxInstr_GetAttributeNIComplexSingleArray
  • RFmxInstr_GetAttributeNIComplexDoubleArray

int32 __stdcall RFmxInstr_SetAttributeString (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, char attrVal[]);

Sets the value of an RFmx string attribute.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being set. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
attrVal	char[]	Pass the value to which you want to set the attribute.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_SetAttributeI8 (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, int8 attrVal);

Sets the value of an RFmx 8-bit integer (int8) attribute.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being read. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
attrVal	int8	Pass the value to which you want to set the attribute.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_SetAttributeU8 (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, uInt8 attrVal);

Sets the value of an RFmx 8-bit unsigned integer (uInt8) attribute.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being set. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
attrVal	uInt8	Pass the value to which you want to set the attribute.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_SetAttributeI16 (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, int16 attrVal);

Sets the value of an RFmx 16-bit integer (int16) attribute.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being read. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
attrVal	int16	Pass the value to which you want to set the attribute.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_SetAttributeU16 (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, uInt16 attrVal);

Sets the value of an RFmx 16-bit unsigned integer (uInt16) attribute.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being read. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
attrVal	uInt16	Pass the value to which you want to set the attribute.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_SetAttributeI32 (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, int32 attrVal);

Sets the value of an RFmx 32-bit integer (int32) attribute.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being set. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
attrVal	int32	Pass the value to which you want to set the attribute.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_SetAttributeU32 (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, uInt32 attrVal);

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

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being read. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
attrVal	uInt32	Pass the value to which you want to set the attribute.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_SetAttributeI64 (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, int64 attrVal);

Sets the value of an RFmx 64-bit integer (int64) attribute.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being read. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
attrVal	int64	Pass the value to which you want to set the attribute.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_SetAttributeF64 (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, float64 attrVal);

Sets the value of an RFmx 64-bit floating point number (float64) attribute.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being set. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
attrVal	float64	Pass the value to which you want to set the attribute.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_SetAttributeF32 (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, float32 attrVal);

Sets the value of an RFmx 32-bit floating point number (float32) attribute.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being read. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
attrVal	float32	Pass the value to which you want to set the attribute.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_SetAttributeI8Array (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, int8 attrVal[], int32 arraySize);

Sets the value of an RFmx 8-bit integer (int8) attribute. You must provide a char array to serve as a buffer for the value. Pass the number of bytes in the buffer as the arraySize parameter. If you want to call this function just to get the required buffer size, you must pass 0 for arraySize and NULL for the attrVal buffer.

If the current value of the attribute, including the terminating NULL byte, is larger than the size you indicate in the arraySize parameter, the function copies buffer size - 1 bytes into the buffer, places an ASCII NULL byte at the end of the buffer, and returns the buffer size you must pass to get the entire value. For example, if the value is "123456" and the buffer size is 4, the function places "123" into the buffer and returns 7.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being read. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
attrVal	int8[]	Pass the value to which you want to set the attribute.
arraySize	int32	Specifies the size of the array.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_SetAttributeI32Array (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, int32 attrVal[], int32 arraySize);

Sets the value of an RFmx 32-bit integer (int32) attribute. You must provide a char array to serve as a buffer for the value. Pass the number of bytes in the buffer as the arraySize parameter. If you want to call this function just to get the required buffer size, you must pass 0 for arraySize and NULL for the attrVal buffer.

If the current value of the attribute, including the terminating NULL byte, is larger than the size you indicate in the arraySize parameter, the function copies buffer size - 1 bytes into the buffer, places an ASCII NULL byte at the end of the buffer, and returns the buffer size you must pass to get the entire value. For example, if the value is "123456" and the buffer size is 4, the function places "123" into the buffer and returns 7.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being read. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
attrVal	int32[]	Pass the value to which you want to set the attribute.
arraySize	int32	Specifies the size of the array.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_SetAttributeI64Array (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, int64 attrVal[], int32 arraySize);

Sets the value of an RFmx 64-bit integer (int64) attribute. You must provide a char array to serve as a buffer for the value. Pass the number of bytes in the buffer as the arraySize parameter. If you want to call this function just to get the required buffer size, you must pass 0 for arraySize and NULL for the attrVal buffer.

If the current value of the attribute, including the terminating NULL byte, is larger than the size you indicate in the arraySize parameter, the function copies buffer size - 1 bytes into the buffer, places an ASCII NULL byte at the end of the buffer, and returns the buffer size you must pass to get the entire value. For example, if the value is "123456" and the buffer size is 4, the function places "123" into the buffer and returns 7.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being read. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
attrVal	int64[]	Pass the value to which you want to set the attribute.
arraySize	int32	Specifies the size of the array.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_SetAttributeU8Array (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, uInt8 attrVal[], int32 arraySize);

Sets the value of an RFmx 8-bit unsigned integer (uInt8) attribute. You must provide a char array to serve as a buffer for the value. Pass the number of bytes in the buffer as the arraySize parameter. If you want to call this function just to get the required buffer size, you must pass 0 for arraySize and NULL for the attrVal buffer.

If the current value of the attribute, including the terminating NULL byte, is larger than the size you indicate in the arraySize parameter, the function copies buffer size - 1 bytes into the buffer, places an ASCII NULL byte at the end of the buffer, and returns the buffer size you must pass to get the entire value. For example, if the value is "123456" and the buffer size is 4, the function places "123" into the buffer and returns 7.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being read. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
attrVal	uInt8[]	Pass the value to which you want to set the attribute.
arraySize	int32	Specifies the size of the array.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_SetAttributeU32Array (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, uInt32 attrVal[], int32 arraySize);

Sets the value of an RFmx 32-bit unsigned integer (uInt32) attribute. You must provide a char array to serve as a buffer for the value. Pass the number of bytes in the buffer as the arraySize parameter. If you want to call this function just to get the required buffer size, you must pass 0 for arraySize and NULL for the attrVal buffer.

If the current value of the attribute, including the terminating NULL byte, is larger than the size you indicate in the arraySize parameter, the function copies buffer size - 1 bytes into the buffer, places an ASCII NULL byte at the end of the buffer, and returns the buffer size you must pass to get the entire value. For example, if the value is "123456" and the buffer size is 4, the function places "123" into the buffer and returns 7.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being read. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
attrVal	uInt32[]	Pass the value to which you want to set the attribute.
arraySize	int32	Specifies the size of the array.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_SetAttributeF32Array (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, float32 attrVal[], int32 arraySize);

Sets the value of an RFmx 32-bit floating point number (float32) attribute. You must provide a char array to serve as a buffer for the value. Pass the number of bytes in the buffer as the arraySize parameter. If you want to call this function just to get the required buffer size, you must pass 0 for arraySize and NULL for the attrVal buffer.

If the current value of the attribute, including the terminating NULL byte, is larger than the size you indicate in the arraySize parameter, the function copies buffer size - 1 bytes into the buffer, places an ASCII NULL byte at the end of the buffer, and returns the buffer size you must pass to get the entire value. For example, if the value is "123456" and the buffer size is 4, the function places "123" into the buffer and returns 7.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being read. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
attrVal	float32[]	Pass the value to which you want to set the attribute.
arraySize	int32	Specifies the size of the array.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_SetAttributeF64Array (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, float64 attrVal[], int32 arraySize);

Sets the value of an RFmx 64-bit floating point number (float64) attribute. You must provide a char array to serve as a buffer for the value. Pass the number of bytes in the buffer as the arraySize parameter. If you want to call this function just to get the required buffer size, you must pass 0 for arraySize and NULL for the attrVal buffer.

If the current value of the attribute, including the terminating NULL byte, is larger than the size you indicate in the arraySize parameter, the function copies buffer size - 1 bytes into the buffer, places an ASCII NULL byte at the end of the buffer, and returns the buffer size you must pass to get the entire value. For example, if the value is "123456" and the buffer size is 4, the function places "123" into the buffer and returns 7.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being read. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
attrVal	float64[]	Pass the value to which you want to set the attribute.
arraySize	int32	Specifies the size of the array.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_SetAttributeNIComplexSingleArray (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, NIComplexSingle attrVal[], int32 arraySize);

Sets the value of an RFmx NIComplexSingle attribute. You must provide a char array to serve as a buffer for the value. Pass the number of bytes in the buffer as the arraySize parameter. If you want to call this function just to get the required buffer size, you must pass 0 for arraySize and NULL for the attrVal buffer.

If the current value of the attribute, including the terminating NULL byte, is larger than the size you indicate in the arraySize parameter, the function copies buffer size - 1 bytes into the buffer, places an ASCII NULL byte at the end of the buffer, and returns the buffer size you must pass to get the entire value. For example, if the value is "123456" and the buffer size is 4, the function places "123" into the buffer and returns 7.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being read. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
attrVal	NIComplexSingle[]	Pass the value to which you want to set the attribute.
arraySize	int32	Specifies the size of the array.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_SetAttributeNIComplexDoubleArray (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, NIComplexDouble attrVal[], int32 arraySize);

Sets the value of an RFmx NIComplexDouble attribute. You must provide a char array to serve as a buffer for the value. Pass the number of bytes in the buffer as the arraySize parameter. If you want to call this function just to get the required buffer size, you must pass 0 for arraySize and NULL for the attrVal buffer.

If the current value of the attribute, including the terminating NULL byte, is larger than the size you indicate in the arraySize parameter, the function copies buffer size - 1 bytes into the buffer, places an ASCII NULL byte at the end of the buffer, and returns the buffer size you must pass to get the entire value. For example, if the value is "123456" and the buffer size is 4, the function places "123" into the buffer and returns 7.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being read. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
attrVal	NIComplexDouble[]	Pass the value to which you want to set the attribute.
arraySize	int32	Specifies the size of the array.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_GetAttributeString (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, int32 arraySize, char attrVal[]);

Queries the value of an RFmx string attribute. You must provide a char array to serve as a buffer for the value. Pass the number of bytes in the buffer as the arraySize parameter. If you want to call this function just to get the required buffer size, you must pass 0 for arraySize and NULL for the attrVal buffer.

If the current value of the attribute, including the terminating NULL byte, is larger than the size you indicate in the arraySize parameter, the function copies buffer size - 1 bytes into the buffer, places an ASCII NULL byte at the end of the buffer, and returns the buffer size you must pass to get the entire value. For example, if the value is "123456" and the buffer size is 4, the function places "123" into the buffer and returns 7.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being read. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
arraySize	int32	Specifies the size of the array. Pass the number of bytes in the char buffer you specify for the attrVal parameter. If you pass 0, you can pass NULL for the attrVal parameter.
Output
Name	Type	Description
attrVal	char[]	Returns the current value of the attribute. This parameter must have at least as many bytes as indicated in the arraySize parameter. If you specify 0 for the arraySize parameter, you can pass NULL for this parameter.

Name	Type	Description
statusOrRequiredSize	int32	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. When the statusOrRequiredSize return value returns the buffer size, the status code is not returned. 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

int32 __stdcall RFmxInstr_GetAttributeI8 (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, int8 *attrVal);

Queries the value of an RFmx 8-bit integer (int8) attribute.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being set. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
Output
Name	Type	Description
attrVal	int8*	Returns the current value of the attribute.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_GetAttributeU8 (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, uInt8 *attrVal);

Queries the value of an RFmx 8-bit unsigned integer (uInt8) attribute.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being read. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
Output
Name	Type	Description
attrVal	uInt8*	Returns the current value of the attribute.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_GetAttributeI16 (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, int16 *attrVal);

Queries the value of an RFmx 16-bit integer (int16) attribute.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being set. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
Output
Name	Type	Description
attrVal	int16*	Returns the current value of the attribute.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_GetAttributeU16 (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, uInt16 *attrVal);

Queries the value of an RFmx 16-bit unsigned integer (uInt16) attribute.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being set. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
Output
Name	Type	Description
attrVal	uInt16*	Returns the current value of the attribute.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_GetAttributeI32 (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, int32 *attrVal);

Queries the value of an RFmx 32-bit integer (int32) attribute.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being read. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
Output
Name	Type	Description
attrVal	int32*	Returns the current value of the attribute.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_GetAttributeU32 (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, uInt32 *attrVal);

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

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being set. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
Output
Name	Type	Description
attrVal	uInt32*	Returns the current value of the attribute.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_GetAttributeI64 (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, int64 *attrVal);

Queries the value of an RFmx 64-bit integer (int64) attribute.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being set. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
Output
Name	Type	Description
attrVal	int64*	Returns the current value of the attribute.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_GetAttributeF64 (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, float64 *attrVal);

Queries the value of an RFmx 64-bit floating point number (float64) attribute.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being read. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
Output
Name	Type	Description
attrVal	float64*	Returns the current value of the attribute.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_GetAttributeF32 (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, float32 *attrVal);

Queries the value of an RFmx 32-bit floating point number (float32) attribute.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being set. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
Output
Name	Type	Description
attrVal	float32*	Returns the current value of the attribute.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_GetAttributeI8Array (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, int8 attrVal[], int32 arraySize, int32 *actualArraySize);

Queries the value of an RFmx 8-bit integer (int8) attribute. You must provide a char array to serve as a buffer for the value. Pass the number of bytes in the buffer as the arraySize parameter. If you want to call this function just to get the required buffer size, you must pass 0 for arraySize and NULL for the attrVal buffer.

If the current value of the attribute, including the terminating NULL byte, is larger than the size you indicate in the arraySize parameter, the function copies buffer size - 1 bytes into the buffer, places an ASCII NULL byte at the end of the buffer, and returns the buffer size you must pass to get the entire value. For example, if the value is "123456" and the buffer size is 4, the function places "123" into the buffer and returns 7.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being set. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
arraySize	int32	Specifies the size of the array. Set the arraySize parameter to 0 to get the size of all the arrays in the actualArraySize parameter.
Output
Name	Type	Description
attrVal	int8[]	Returns the current value of the attribute.
actualArraySize	int32*	Returns the actual size of the array. If you set the arraySize parameter to 0, it returns the required array size.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_GetAttributeI32Array (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, int32 attrVal[], int32 arraySize, int32 *actualArraySize);

Queries the value of an RFmx 32-bit integer (int32) attribute. You must provide a char array to serve as a buffer for the value. Pass the number of bytes in the buffer as the arraySize parameter. If you want to call this function just to get the required buffer size, you must pass 0 for arraySize and NULL for the attrVal buffer.

If the current value of the attribute, including the terminating NULL byte, is larger than the size you indicate in the arraySize parameter, the function copies buffer size - 1 bytes into the buffer, places an ASCII NULL byte at the end of the buffer, and returns the buffer size you must pass to get the entire value. For example, if the value is "123456" and the buffer size is 4, the function places "123" into the buffer and returns 7.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being set. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
arraySize	int32	Specifies the size of the array. Set the arraySize parameter to 0 to get the size of all the arrays in the actualArraySize parameter.
Output
Name	Type	Description
attrVal	int32[]	Returns the current value of the attribute.
actualArraySize	int32*	Returns the actual size of the array, if you pass NULL to all output array parameters, and set the arraySize parameter to 0.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_GetAttributeI64Array (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, int64 attrVal[], int32 arraySize, int32 *actualArraySize);

Queries the value of an RFmx 64-bit integer (int64) attribute. You must provide a char array to serve as a buffer for the value. Pass the number of bytes in the buffer as the arraySize parameter. If you want to call this function just to get the required buffer size, you must pass 0 for arraySize and NULL for the attrVal buffer.

If the current value of the attribute, including the terminating NULL byte, is larger than the size you indicate in the arraySize parameter, the function copies buffer size - 1 bytes into the buffer, places an ASCII NULL byte at the end of the buffer, and returns the buffer size you must pass to get the entire value. For example, if the value is "123456" and the buffer size is 4, the function places "123" into the buffer and returns 7.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being set. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
arraySize	int32	Specifies the size of the array. Set the arraySize parameter to 0 to get the size of all the arrays in the actualArraySize parameter.
Output
Name	Type	Description
attrVal	int64[]	Returns the current value of the attribute.
actualArraySize	int32*	Returns the actual size of the array, if you pass NULL to all output array parameters, and set the arraySize parameter to 0.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_GetAttributeU8Array (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, uInt8 attrVal[], int32 arraySize, int32 *actualArraySize);

Queries the value of an RFmx 8-bit unsigned integer (uInt8) attribute. You must provide a char array to serve as a buffer for the value. Pass the number of bytes in the buffer as the arraySize parameter. If you want to call this function just to get the required buffer size, you must pass 0 for arraySize and NULL for the attrVal buffer.

If the current value of the attribute, including the terminating NULL byte, is larger than the size you indicate in the arraySize parameter, the function copies buffer size - 1 bytes into the buffer, places an ASCII NULL byte at the end of the buffer, and returns the buffer size you must pass to get the entire value. For example, if the value is "123456" and the buffer size is 4, the function places "123" into the buffer and returns 7.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being set. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
arraySize	int32	Specifies the size of the array. Set the arraySize parameter to 0 to get the size of all the arrays in the actualArraySize parameter.
Output
Name	Type	Description
attrVal	uInt8[]	Returns the current value of the attribute.
actualArraySize	int32*	Returns the actual size of the array, if you pass NULL to all output array parameters, and set the arraySize parameter to 0.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_GetAttributeU32Array (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, uInt32 attrVal[], int32 arraySize, int32 *actualArraySize);

Queries the value of an RFmx 32-bit unsigned integer (uInt32) attribute. You must provide a char array to serve as a buffer for the value. Pass the number of bytes in the buffer as the arraySize parameter. If you want to call this function just to get the required buffer size, you must pass 0 for arraySize and NULL for the attrVal buffer.

If the current value of the attribute, including the terminating NULL byte, is larger than the size you indicate in the arraySize parameter, the function copies buffer size - 1 bytes into the buffer, places an ASCII NULL byte at the end of the buffer, and returns the buffer size you must pass to get the entire value. For example, if the value is "123456" and the buffer size is 4, the function places "123" into the buffer and returns 7.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being set. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
arraySize	int32	Specifies the size of the array. Set the arraySize parameter to 0 to get the size of all the arrays in the actualArraySize parameter.
Output
Name	Type	Description
attrVal	uInt32[]	Returns the current value of the attribute.
actualArraySize	int32*	Returns the actual size of the array, if you pass NULL to all output array parameters, and set the arraySize parameter to 0.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_GetAttributeF32Array (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, float32 attrVal[], int32 arraySize, int32 *actualArraySize);

Queries the value of an RFmx 32-bit floating point number (float32) attribute. You must provide a char array to serve as a buffer for the value. Pass the number of bytes in the buffer as the arraySize parameter. If you want to call this function just to get the required buffer size, you must pass 0 for arraySize and NULL for the attrVal buffer.

If the current value of the attribute, including the terminating NULL byte, is larger than the size you indicate in the arraySize parameter, the function copies buffer size - 1 bytes into the buffer, places an ASCII NULL byte at the end of the buffer, and returns the buffer size you must pass to get the entire value. For example, if the value is "123456" and the buffer size is 4, the function places "123" into the buffer and returns 7.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being set. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
arraySize	int32	Specifies the size of the array. Set the arraySize parameter to 0 to get the size of all the arrays in the actualArraySize parameter.
Output
Name	Type	Description
attrVal	float32[]	Returns the current value of the attribute.
actualArraySize	int32*	Returns the actual size of the array, if you pass NULL to all output array parameters, and set the arraySize parameter to 0.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_GetAttributeF64Array (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, float64 attrVal[], int32 arraySize, int32 *actualArraySize);

Queries the value of an RFmx 64-bit floating point number (float64) attribute. You must provide a char array to serve as a buffer for the value. Pass the number of bytes in the buffer as the arraySize parameter. If you want to call this function just to get the required buffer size, you must pass 0 for arraySize and NULL for the attrVal buffer.

If the current value of the attribute, including the terminating NULL byte, is larger than the size you indicate in the arraySize parameter, the function copies buffer size - 1 bytes into the buffer, places an ASCII NULL byte at the end of the buffer, and returns the buffer size you must pass to get the entire value. For example, if the value is "123456" and the buffer size is 4, the function places "123" into the buffer and returns 7.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being set. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
arraySize	int32	Specifies the size of the array. Set the arraySize parameter to 0 to get the size of all the arrays in the actualArraySize parameter.
Output
Name	Type	Description
attrVal	float64[]	Returns the current value of the attribute.
actualArraySize	int32*	Returns the actual size of the array, if you pass NULL to all output array parameters, and set the arraySize parameter to 0.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_GetAttributeNIComplexSingleArray (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, NIComplexSingle attrVal[], int32 arraySize, int32 *actualArraySize);

Queries the value of an RFmx NIComplexSingle attribute. You must provide a char array to serve as a buffer for the value. Pass the number of bytes in the buffer as the arraySize parameter. If you want to call this function just to get the required buffer size, you must pass 0 for arraySize and NULL for the attrVal buffer.

If the current value of the attribute, including the terminating NULL byte, is larger than the size you indicate in the arraySize parameter, the function copies buffer size - 1 bytes into the buffer, places an ASCII NULL byte at the end of the buffer, and returns the buffer size you must pass to get the entire value. For example, if the value is "123456" and the buffer size is 4, the function places "123" into the buffer and returns 7.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being set. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
arraySize	int32	Specifies the size of the array. Set the arraySize parameter to 0 to get the size of all the arrays in the actualArraySize parameter.
Output
Name	Type	Description
attrVal	NIComplexSingle[]	Returns the current value of the attribute.
actualArraySize	int32*	Returns the actual size of the array, if you pass NULL to all output array parameters, and set the arraySize parameter to 0.

Name	Type	Description
status	int32	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

int32 __stdcall RFmxInstr_GetAttributeNIComplexDoubleArray (niRFmxInstrHandle instrumentHandle, char selectorString[], int32 attributeID, NIComplexDouble attrVal[], int32 arraySize, int32 *actualArraySize);

Queries the value of an RFmx NIComplexDouble attribute. You must provide a char array to serve as a buffer for the value. Pass the number of bytes in the buffer as the arraySize parameter. If you want to call this function just to get the required buffer size, you must pass 0 for arraySize and NULL for the attrVal buffer.

If the current value of the attribute, including the terminating NULL byte, is larger than the size you indicate in the arraySize parameter, the function copies buffer size - 1 bytes into the buffer, places an ASCII NULL byte at the end of the buffer, and returns the buffer size you must pass to get the entire value. For example, if the value is "123456" and the buffer size is 4, the function places "123" into the buffer and returns 7.

Input
Name	Type	Description
instrumentHandle	niRFmxInstrHandle	Identifies the instrument session. This parameter is obtained from the RFmxInstr_Initialize function or the RFmxInstr_InitializeFromNIRFSASessionArray function.
selectorString	char[]	Specifies the selector string for the attribute being set. Refer to the Selector String (C/CVI)) topic for more information about configuring the selector string.
attributeID	int32	Pass the ID of an attribute.
arraySize	int32	Specifies the size of the array. Set the arraySize parameter to 0 to get the size of all the arrays in the actualArraySize parameter.
Output
Name	Type	Description
attrVal	NIComplexDouble[]	Returns the current value of the attribute.
actualArraySize	int32*	Returns the actual size of the array, if you pass NULL to all output array parameters, and set the arraySize parameter to 0.

Name	Type	Description
status	int32	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