%SETCTL is a subroutine of the program "fractory.m".  On
%some systems, covering a control does not prevent it from
%being accessed, so SETCTL sets certain controls 'Visible'
%property to ctlmode ('on' or 'off').  The vector 'setwho'
%determines which controls are affected....
%1: SQUARE TRANSFORMATION controls
%2: LOAD/SAVE/CLEARALL/QUIT buttons
%3: everything else 

if any(setwho==1)
  set(FL1butt,'Visible',ctlmode);
  set(FL2butt,'Visible',ctlmode);
  set(FL3butt,'Visible',ctlmode);
  set(FL4butt,'Visible',ctlmode);
  set(Sysldr,'Visible',ctlmode);
  set(Sxsldr,'Visible',ctlmode);
  set(Sxedtx,'Visible',ctlmode);
  set(Syedtx,'Visible',ctlmode);
  set(RTsldr,'Visible',ctlmode);
  set(RTedtx,'Visible',ctlmode);
  set(OPsldr,'Visible',ctlmode);
  set(OPedtx,'Visible',ctlmode);
  set(SCsldr,'Visible',ctlmode);
  set(SCedtx,'Visible',ctlmode);
  set(LEsldr,'Visible',ctlmode);
  set(LEbutt,'Visible',ctlmode);
  set(LEedtx,'Visible',ctlmode);
end
if any(setwho==2)
  set(LObutt,'Visible',ctlmode);
  set(SAbutt,'Visible',ctlmode);
  set(CAbutt,'Visible',ctlmode);
  set(QUbutt,'Visible',ctlmode);
end
if any(setwho==3)
  set(HFbox,'Visible',ctlmode);
  set(INbox,'Visible',ctlmode);
  set(DrFbutt,'Visible',ctlmode);
  set(NIedtx,'Visible',ctlmode);
  set(HEbutt,'Visible',ctlmode);
  set(VWbutt,'Visible',ctlmode);
  set(Z2sttx,'Visible',ctlmode);
  set(Z3sttx,'Visible',ctlmode);
  set(Y2sttx,'Visible',ctlmode);
  set(Y3sttx,'Visible',ctlmode);
  set(X2sttx,'Visible',ctlmode);
  set(X3sttx,'Visible',ctlmode);
  set(DeFbutt,'Visible',ctlmode);
  set(NFbutt,'Visible',ctlmode);
  set(CFbutt,'Visible',ctlmode);
  set(FOchbx,'Visible',ctlmode);
  set(FSsldr,'Visible',ctlmode);
  if viewon==-1
    for nn=[5:12 17]
      set(helpbox(nn),'Visible',ctlmode);
    end
  end
  if viewon==1
    for nn=[3:6 8:10]
      set(viewbox(nn),'Visible',ctlmode);
    end
  end
end