lps_setinputtray

<B>Digital的Unix操作系统VAX 4.2源码</B>

% LPS$$SETINPUTTRAY device control library module.
% Version V1.0
%
% Copyright ) 1986 by DEC, Maynard, Mass.  All rights reserved.

% Remember, you are still in lps$lpsdict!
%
% This module expects the input tray to be on the stack.

    dup /lps$input-tray exch def % Store paper tray used.

% Table for Input_tray
%
    /input-tray-dict 3 dict def
    input-tray-dict begin
      /top	{1 setpapertray} bind def
      /middle	{2 setpapertray} bind def
      /bottom	{3 setpapertray} bind def
      end

    input-tray-dict exch get exec % Now set the paper tray used.