ProtectEntry
short index ; color table entry
ProtectEntry is used by the Color Manager to provide protection or remove protection from a color table entry.
index is the identification of the entry to be affected by this procedure.
protectFlag specifies whether to protect the entry or remove its protection . It
must be one of:
FALSE remove protection from any specified entry TRUE protect entry, returns a protection error if entry is already protected.
Notes: Once an entry is protected, other clients cannot affect it.