# 4D_bWriteObj(ObjType, ObjIndex, aa) hash function
Sends the contents of RAM location aa to the nominated 4D object. The single byte value in aa is converted to the 16-bit data expected by ViSi-Genie, so possible values lie between 0 and 255.
ObjType is the 4D systems Object. These are defined in the ViSi-Genie reference manual. ObjIndex is the object number of that particular type.
Executing this hash function will always result in one YieldTask.