Re: How to Trap the cursor position ?????

[John Hall <jhall@xxxxxxxxxxx>]

I believe there IS a way to define every key as an AID key.  We use a
product called laservault which uses single commands on their green
screen interface.  for example press ? and a help screen pops up.

I have never had the need to program it but I am sure it can be done. 
There is no CPU time consumed while the system is waiting for a
keystroke.

John Hall
Home Sales Co.

Douglas Handy wrote:
> 
> Jaydeep,
> 
> >Is there any way  to trap cursor position (giving X ,Y  coordinates) ,when 
>user
> >presses arrow keys.
> 
> Not directly.  Unlike a PC, keystrokes do not generate an interrupt of
> the main CPU(s).  Instead devices operate in a block mode with all
> keystrokes handled by the workstation controller (or its equivalent)
> until one of the so-called AID keys is pressed.  AID stands for
> something Attention IDentification, and basically consists of the
> Enter key, Fx keys, Page Up/Down, SysReq/Attn, and a couple of misc
> other ones like Print, Help, Clear and Home (when cursor is already
> home).
>
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