Returns a numerical value indicating the '''object ID ''' number of the currently selected arrow object.
Arw_GetActive returns a value of -1 if no arrow objects are currently selected.
== Notes ==
* An object-specific ID number is assigned by [[Arw_New]], [[Arw_New_s]], [[Arw_New_self]] or [[Arw_New_self_s]] when the arrow object is created.* Use [[MC_Arw_GetActive]] to get the '''arrow ID''' number of the currently selected arrow.