DAQmxGetNthTaskReadChannel

int32 DAQmxGetNthTaskReadChannel (TaskHandle taskHandle, uInt32 index, char buffer[], int32 bufferSize);

Purpose

Takes a task, an index, and a user declared buffer with size. It fills out the buffer with the Nth channel as requested by the user in the index. This comes from all the channels in the task. Indexing starts at 1.

Parameters

Input
Name	Type	Description
taskHandle	TaskHandle	The task used in this function.
index	uInt32	The Nth channel to return. The index starts at 1.
bufferSize	int32	The size, in bytes, of buffer. If you pass 0, this function returns the number of bytes needed to allocate.
Output
buffer	char []	The Nth channel in the index. If you pass NULL, this function returns the number of bytes needed to allocate.

Return Value

Name	Type	Description
status	int32	The error code returned by the function in the event of an error or warning. A value of 0 indicates success. A negative value indicates an error. For this function, if you pass NULL for the buffer or 0 for the buffer size, this function returns the number of bytes needed to allocate.