DLN-series adapters allow you to control LEDs’ behavior by defining the value of the DLN_LED_STATE type defined in the dln_led.h file.The list of its possible LED states is given in the following table:
| State | LED Behavior |
DLN_LED_STATE_OFF | Off |
DLN_LED_STATE_ON | On |
DLN_LED_SLOW_BLINK | Blinking slowly |
DLN_LED_FAST_BLINK | Blinking rapidly |
DLN_LED_DOUBLE_BLINK | Blinking in a double-blink pattern |
DLN_LED_TRIPLE_BLINK | Blinking in a triple-blink pattern |
To specify a LED state, use the DlnLedSetState() function. You can check the current state of a LED by using the DlnLedGetState() function.