To have your program find out if the attention light is on, use the API GetAttentionLight (use the uppercase and lowercase shown).
There are no restrictions on the use of this command.
This API returns the following information:
| Bytes 0 and 1 | Bytes 2 and 3 | Bytes 4 through 4+N |
|---|---|---|
| 16-bit return code 0 => Command successful 1 => Command unsuccessful |
16-bit additional data length N N = size of ASCII return value (does not count end of string NULL) |
True or False |