Bottom line at the top:
Even if you did port the Motif calls to MPE, you would still need the
mwm (Motif Window Manager) running too.
Skippable explanation here:
WRQ can correct me here if I make a misstatement about their product.
There are really 3 pieces in the X-window setup. The 'client' program
(which runs on your HP3000 server). The X-server (which runs on your
client PC or workstation). And the 'window manager' (which can run
anywhere, even a third system).
Motif is a set of calls built on top of the X-toolkit calls that are
built on top of the X-lib calls. MPE/iX used to have the Motif calls
that could be linked into a program that would then communicate to a
Motif Window Manager (not just any window manager) that is not provided
on the HP3000.
Reflection/X is the 'X-server' that runs on the PC to interact with the
PC hardware (mouse, keyboard, screen). It talks to a 'window manager'
that they don't provide.
So, where do you find a Motif Window Manager to complete the 3rd piece
of the setup?
Jim Fennell, Scott Mullen and Mike Yawn shared this wonderful learning
exercise with me :-) My only experince with this on MPE was in a very
early version of Java/iX that had the AWT (we currently don't support
the AWT nor Swing and never will since the Motif/iX product is
obsolete). We could export the DISPLAY var and send the window to an
HP9000 workstation just fine. We could not send it to a PC running
Reflection/X. It turns out that the HP9000 supplied the Motif Window
Manager that sits between the client code running on the 3000 and the
X-server running on the HP9000 workstation.
So, the *only* way we were ever able to push a Motif window from an
HP3000 to a PC running Reflection/X was to have an HP9000 supply the
Motif Window Manager (not too practical).
Mark Bixby wrote:
> Paul Courry wrote:
>
>
>>Does the HP3000 support X Windows?
>>
>>We are looking at a tax package that requires a C compiler, Motif and X-
>>Windows. While C compilers and Motif appear readily available, X-Windows does
>>not. Can anybody give me a definitive answer on who makes a software package
>>for the HP3000 to support X-Windows? (I'll assume Exceed or WRQ can handle the
>>PC
>>end.)
>>
>
> The source code for X can be downloaded from:
>
>
> http://www.x.org/download.htm
>
> Should be a fun little porting project for anybody with sufficient desire and
> free time. ;-)
>
> Given that X is ultimately just a sockets-based programming library, and that
> once upon a time HP did port it to MPE, I believe it could be re-ported
> successfully (he said, never having looked at the source code). But I suspect
> you might find the performance to be lacking.
> --
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