Scanner SDK Events - begin scan

Given the Scanner SDK in Windows/Android - is it possible to receive an event when the aim button is pressed on the scanner /handheld mode has started scanning?

 

In the Android SDK example app, could only locate the follwing event ID's:

 

public static final int BARCODE_RECEIVED = 30;

public static final int SESSION_ESTABLISHED = 31;

public static final int SESSION_TERMINATED = 32;

public static final int SCANNER_APPEARED = 33;

public static final int SCANNER_DISAPPEARED = 34;

public static final int FW_UPDATE_EVENT = 35;

 

Thank you.