the length in byte [...] be at least of LEN byte [...] ARRAY [0..3] OF BYTE
Request (Method) TargetByte
Symbol POINTER TO BYTE [...] Local POINTER TO BYTE
..(GVL_CONSTANT.THUMB_SIZE - 1)] OF BYTE [...] ..(GVL_CONSTANT.THUMB_SIZE - 1)] OF BYTE
..VUM_Constants.VISU_VUM_MAX_GROUPS_PER_USER] OF BYTE Additional user [...] UserGroupCount BYTE Number
in bytes where p [...] of Bytes written to pData