APPLICATION NOTE #126
 USING 3270 EMULATION MODE WITH XYWRITE III PLUS
 Rev. 02


 There are a number of packages on the market that allow you to enter 
3270 emulation mode. This application note describes the special 
setup needed to run, from XyWrite, the 3270 emulation program 
produced by IBM. Other emulation packages may respond differently. If 
so, please call XYQUEST's Technical Support Department.


 INSTALLATION
 First be sure that you have enough extra memory to run the emulation 
program. Remember, XyWrite requires 256K of memory (384K with the 
Spelling Checker). You must add to that the amount of memory required 
by the emulation program and any other programs that you have loaded.

 If you have sufficient memory, install the 3270 emulation program 
according to the directions supplied with that program. Modify the 
AUTOEXEC.BAT file to load the emulation program before loading 
XyWrite.


 KEYBOARD TABLE
 The IB (IBM) function call clears the XyWrite keyboard buffer. You 
must assign IB to the key you use to exit 3270 emulation mode.

 1.  Determine the keycode of the key you are using to exit 3270 
emulation
     mode.  A common key sequence for this function is Ctrl-Esc, which 
is
     keycode 1. (Refer to the keyboard diagram in Chapter 6 of the 
XyWrite III
     Plus Reference Guide for a diagram of keys and their associated 
keycodes.)

 2.  Call the XyWrite keyboard file to the screen.

       F5call ibm.kbd<CR>

 3.  For the key sequence Ctrl-Esc, find the TABLE=CTRL statement and 
then
     move the cursor to the key definition for key 1.

 4.  Change the key definition line to read, for example:

        1=ib

 5.  Store and load the keyboard file.

        F5load ibm.kbd<CR>


 PRINTER FILE
 To run the 3270 emulation program from XyWrite, you must also include 
a KM (Keyboard Mode) command in the printer file. This command allows 
XyWrite to clear the keyboard buffer when too many keystrokes have 
accumulated while the 3270 emulation program has control.

 To add this command to the printer file:

 1.  Call your printer file to the screen. For example:

       F5call 3epsonfx.prn<CR>

 2.  Move the cursor past the comments section (comment lines start 
with a ;).
     Before the first PT (Print Type) table, enter the following 
command:

       km=3

 3.  Store and load the printer file.

       F5load 3epsonfx.prn <CR>


 RUNNING 3270 EMULATION MODE
 Assuming you have loaded the emulation program into memory, you can 
now use its hot key (e.g., Ctrl-Esc) to enter the emulation program 
from XyWrite. You may want to first press Ctrl-M and release some 
memory before entering the emulation mode. Refer to the XyWrite III 
Plus Reference Guide for more information on memory usage.