niDMM_GetChannelName

ViStatus = niDMM_GetChannelName(ViSession Instrument_Handle, ViInt32 Index, ViInt32 Buffer_Size, ViChar Channel_String[])

Purpose

Returns the Channel_String that is in the channel table at an Index you specify. Not applicable to National Instruments DMMs. Included for compliance with the IviDmm Class Specification.

Parameters

Input
Name	Type	Description
Instrument_Handle	ViSession	Identifies a particular instrument session. You obtain the Instrument_Handle parameter from niDMM_init or niDMM_InitWithOptions. The default is None.
Index	ViInt32	A 1–based Index into the channel table.
Buffer_Size	ViInt32	Passes the number of bytes in the ViChar array you specify for the Channel_String parameter. If the next Channel_String, including the terminating NULL byte, contains more bytes than you indicate in this 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. If you pass a negative number, the function copies the value to the buffer regardless of the number of bytes in the value. If you pass 0, you can pass VI_NULL for the Channel_String buffer parameter. The default value is None.
Output
Name	Type	Description
Channel_String	ViChar[ ]	Returns the Channel_String that is in the channel table at the Index you specify. Do not modify the contents of the Channel_String.

Return Value

Name	Type	Description
Status	ViStatus	Reports the Status of this operation. To obtain a text description of the status code, call niDMM_error_message. To obtain additional information concerning the error condition, use niDMM_GetError.