Send a PollCommandLength message.
Send the PollCommandLength system command on the specified connection slot.
- This function requires the enhanced NBC/NXC firmware version 1.28+.
|conn||The connection slot (0..4). Connections 0 through 3 are for bluetooth connections. Connection 4 refers to the RS485 hi-speed port. See Remote connection constants. |
|bufnum||The poll buffer you want to query (0=USBPoll, 1=HiSpeed). |
|length||The number of bytes available for polling. |
- A char value indicating whether the function call succeeded or not.