Apple AppleShare 3.0 Users and Groups Programming Interface - Manual (Page 15)

ugBadParamErr 13 async is TRUE, the length of the password
is greater than 8, or the length of the
user name is greater than 31.
ugInvalidPasswd 22 ugPassword is not the correct password.
ugFatalError 99 There is a problem with the users and
groups file. Delete it and re-create it.
UGNewGroup
FUNCTION UGNewGroup (thePB: UserGroupPBPtr; async: BOOLEAN): OSErr;
pascal OSErr UGNewGroup (UserGroupPBPtr thePB, Boolean async);
Parameter Block 18 ugNamePtr long pointer to group
name
24 ugRefNum word file reference
number
30 ugAccessID long program access ID
38 ugGroupID long group ID
UGNewGroup creates a new group. The name of the group is specified in
ugNamePtr (a pointer to a Str31) and the group ID is returned in ugGroupID.
Result Codes
noErr 0 No error.
ugUserAlreadyExists 1 User with that name already exists.
ugGroupAlreadyExists 2 Group with that name already exists.
ugNoMoreUGs 4 The maximum value ($FFFFFFFF) has been
reached.
ugBadParamErr 13 async is TRUE, ugNamePtr contains a
colon, or ugNamePtr points to a string
longer than 31 characters or shorter
than 1 character.
ugServerRunning 16 Server is running.
ugAdminRunning 17 Admin is running.
ugNotBtree 18 Users and groups file is not a B-Tree
file.
ugBadUID 21 The ID in ugAccessID is wrong. The users
and groups file may not be open.
ugFatalError 99 There is a problem with the users and
groups file. Delete it and re-create it.
UGDeleteGroup