DAQmxGetNthTaskDevice
int32 DAQmxGetNthTaskDevice (TaskHandle taskHandle, uInt32 index, char buffer[], int32 bufferSize);
Purpose
Returns the Nth device. This function takes the taskHandle, index, and bufferSize you specify and returns the Nth device.
Parameters
| Input | ||
| Name | Type | Description |
|---|---|---|
| taskHandle | TaskHandle | The task used in this function. |
| index | uInt32 | The Nth device you want 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 |
|
The Nth device 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. |