ICCCM & Properties

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2 total messages Started by Alexis MERMET-GRANDFILLES Tue, 09 Apr 1991 16:11

#548

Author: Alexis MERMET-GRANDFILLES
Date: Tue, 09 Apr 1991 16:11

47 lines
1909 bytes

Hello,

1/

I am looking for the latest Inter Client Communication Conventions document.

I have got the O'reily books which say that it should appear in the 
Appendix L of the volume 0 : X protocol Reference Manual.

Unfortunately, my volume 0 book ends at appendix K. too bad...

Does anybody know where to find this text or this document ?


2/

I am trying to find out what is the best way to transfer quite a big
amount of Data ( Several KBytes ) between 2 X clients.

In fact, I am thinking of a X11 client which acts as a server for many
other clients. On the request of those clients, this 'server'
would send somehow some kind of data, from a few bytes to several KBytes
to the requesting client.

I was thinking of writing the complete buffer into a pre-defined root
window property, and then , sending a ClientMessage to the waiting client
to tell him the data is ready and where it is.


Does this sound feasable ?
Any performance concerns ? 
Any better ideas ?

What is the limitted amount of data that a X11-server may store in
a single property ?


Thank very much for any help !



--------------------------------------------------------------------------
Alexis MERMET-GRANDFILLES             HEWLETT-PACKARD
Tel: 76 62 12 11                      Grenoble Network Division
Fax: 76 62 52 00                      5 avenue Raymond Chanas - EYBENS
alex@hpgndxo.hp.com                   38053 GRENOBLE CEDEX 9
-------------------------------------------------------------------------

Re: ICCCM & Properties

#568

Author: A.B. van Woerkom
Date: Wed, 24 Apr 1991 07:53

34 lines
1883 bytes

alex@hpgnd.grenoble.hp.com (Alexis MERMET-GRANDFILLES) writes:


>2/

>I am trying to find out what is the best way to transfer quite a big
>amount of Data ( Several KBytes ) between 2 X clients.

>In fact, I am thinking of a X11 client which acts as a server for many
>other clients. On the request of those clients, this 'server'
>would send somehow some kind of data, from a few bytes to several KBytes
>to the requesting client.

>I was thinking of writing the complete buffer into a pre-defined root
>window property, and then , sending a ClientMessage to the waiting client
>to tell him the data is ready and where it is.


>Does this sound feasable ?

Sounds like reinventing the wheel.  The Xt-intrinsics offer a set of functions
that implement the so-called selection mechanism.  Using this mechanism it is
quite easy to transfer large amounts of data from one client to the other;
when the amount meets a limit the intrinsics will handle the chopping in chunks
for you.
So, have a look at XtOwnSelection and friends.
--
A.B. van Woerkom, adri@dutncp6.tudelft.nl
Delft University of Technology, Faculty of Applied Physics, Physics
Informatics Group, section Computational Physics, Lorentzweg 1,
2628 CJ  DELFT, The Netherlands
________________________________________________________________________
"Unfortunately, the current generation of mail programs do not have checkers
 to see if the sender knows what he is talking about" (A.S. Tanenbaum)

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