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%OP%LM4
%OP%FGTrinity.Medium
%OP%FX192
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%OP%FS12000
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%C%%H2%PipeDream 3 for RISC OS

%C% Colton Software, 1989


Filename: 
%L%Last updated:


%H2%General

%JR%This file describes gives extra information to the PipeDream 3 User Guide.  Topics covered 
are:






%H2%Fonts

%JR%The PipeDream 3 User Guide implies that specifying fonts within your text only has effect on 
%JL%the printer and has no effect on the screen.  This is not the case.  Fonts are also displayed on 
%JR%the screen.  The current slot is always shown in the system font because on most monitors it is 
much clearer and easier to edit with.

%JR%To be able to display or print characters in fonts other than the system font (the system font is 
%JL%the one used by the window's title bar) the Archimedes needs to have information about the 
%JR%shapes of all of the letters.  This information is supplied on disc and is read from disc when 
%JL%needed.  The directory !Fonts on Applications Disc 1 contains some fonts and others may 
become available from Acorn or other sources.  

%JR%To speed the operation of drawing fonts RISC OS reduces disc accesses by keeping as much 
%JL%font information in memory as it can.  The area of memory used for storing fonts is called the 
%JR%Font cache and you can vary the amount of memory available for the Font cache in the Task 
%JL%display off the Archimedes 'A' icon bar menu.  The memory that you allocate to the font 
%JR%cache becomes unavailable to the rest of the system so it is best to keep it as small as possible.  
%JL%But if you find that fonts take ages to display because they are continually being read from 
disk you will need to give the font cache a little more memory.

%JR%In order to show RISC OS where to find the directory !Fonts it is necessary to catalogue the 
%JL%disc or directory which contains it.  Then, whenever RISC OS needs to read more font 
information, it will automatically read it from the disc.

%JR%The file Readme_f in this directory contains a copy of this document formatted in 
%JL%Trinity.Medium. Try loading that file into a window to compare the text with that in the 
%JR%system font.  If you have a dot-matrix or a laser printer and a suitable RISC OS printer driver 
%JL%you can try printing Readme_f .  You may find that to obtain a reasonable speed in the 
%JR%display of fonts you need to allocate a lot of memory to the Font cache and to print at a 
%JL%reasonable speed on a dot-matrix printer you need to allocate a lot of memory to the Module 
area.


%H2%Highlights in headers and footers

%JR%Highlights can be inserted into headers and footers (and the title) by inserting ^n where n is the 
highlight number (similar to search and replace).  For example ^4 would switch on italics.


%H2%Z88 Filing System

%JR%The Z88 Filing System provided on the PipeDream 3 disc enables you to connect a Z88 
%JL%computer to the Archimedes and load files from it and save files to it as if it were a disc drive.  
%JR%In order to do this two extra pieces of hardware are required - a Z88-Archimedes lead and 
%JL%the PC-LINK EPROM card plugged into the Z88.  Both of these components are available 
separately from Colton Software.

%JR%To start the Z88 double-click Select on the Z88 icon on the PipeDream 3 disc.  The Z88 
%JL%Filing System will load and install its icon on the icon bar.  Ensure that the lead is connected 
%JR%securely to both computers and that the PC-LINK EPROM card is inserted and running in 
%JL%the Z88. Now click Select on the Z88 icon on the icon bar.  A directory viewer should appear 
%JR%showing the devices available on the Z88.  Click Select on one of the devices and a directory 
viewer will appear showing the files and directories currently in the device.  

%JR%If you receive the message "Failed to synchronise with the Z88 (Is PC-LINK running on the 
%JL%Z88?)" check that the lead is connected securely in both computers, and that the PC-LINK 
%JR%EPROM is correctly inserted and running in the Z88.  (To start PC-LINK press []L (square L) 
on the Z88.)

%JR%With the Z88 Filing System running you can copy files between a directory on an Archimedes 
%JL%disk and a directory in the Z88.  You can create selections in directories on both the Z88 and 
%JR%Archimedes and copy the selections.  You can also copy files from the Z88 to PipeDream 3 
%JL%running on the Archimedes either by dragging the file to the PipeDream 3 icon on the icon bar 
%JR%to load the file, or by dragging the file into a PipeDream window to insert it into another 
%JL%document.  Similarly you can save a file from PipeDream 3 to the Z88 by dragging the file 
icon from the Save dialog box to the Z88 directory viewer.

%JR%You can also drag files from the Z88 to other, but not all, applications.  For example you can 
%JL%load files from the Z88 straight into Edit by dragging files in a similar way to that described 
%JR%above for PipeDream 3.  Some applications will not be able to load or save Z88 files directly 
%JL%and the data will be corrupted when it is displayed in the application's window.  Of course, 
%JR%you can copy the file into a directory on an Archimedes disc first, and then load it into the 
%JL%application.  (For the technically minded, this is because the PC-LINK EPROM does not 
support random access, just sequential access.)

%JR%Not all of the filing system operations are supported by the Z88 Filing System.  You cannot 
%JL%use the Access, Delete or Rename commands on the Filer Selection sub-menu to operate on 
%JR%Z88 files.  Neither can you create directories on the Z88 from the Archimedes; you must do 
this on the Z88 itself, using it's own Filing System.
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Fonts
Highlights in headers and footers
Z88 Filing System
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%L%$.Documents.Readme
%L%02 August 1989
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