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Re: TaskWindow -txt &xxxxxxxx

From Martin Wuerthner <spamtrap@mw-software.com>
Newsgroups comp.sys.acorn.programmer
Subject Re: TaskWindow -txt &xxxxxxxx
Date 2011-09-28 17:16 +0200
Organization MW Software
Message-ID <a930dc1952.martin@bach.planiverse.com> (permalink)
References <3613761952.davehigton@dsl.pipex.com> <068f781952.martin@bach.planiverse.com> <5219d7bca2steve@revi11.plus.com>

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In message <5219d7bca2steve@revi11.plus.com>
          "Ste (news)" <steve@revi11.plus.com> wrote:

> In article <068f781952.martin@bach.planiverse.com>,
>    Martin Wuerthner <spamtrap@mw-software.com> wrote:
>> That is the "txt-handle", a unique handle assigned by your task to the
>> child it launches. You will see this in the TaskWindow_Ego, which will
>> tell you the child's proper task handle. The only purpose of the
>> txt-handle is to be quoted back to you in the TaskWindow_Ego message.

> One example use for the txt-handle is to pass a pointer to some workspace
> into the child.

Really? How does the child get hold of the txt-handle value?

Of course, the most obvious thing for the parent to use as the 
txt-handle is a pointer to some data structure that is associated with 
the child, so when receiving TaskWindow_Ego, the parent has immediate 
access to its own data relating to the child, but I cannot see how you 
could pass anything into the child using the txt-handle.

-- 
Martin
---------------------------------------------------------------------
Martin Wuerthner         MW Software      http://www.mw-software.com/
        RISC OS Software for Design, Printing and Publishing
---------------------------------------------------------------------

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Thread

TaskWindow -txt &xxxxxxxx Dave Higton <davehigton@dsl.pipex.com> - 2011-09-27 21:41 +0100
  Re: TaskWindow -txt &xxxxxxxx Martin Wuerthner <spamtrap@mw-software.com> - 2011-09-27 23:08 +0200
    Re: TaskWindow -txt &xxxxxxxx Dave Higton <davehigton@dsl.pipex.com> - 2011-09-27 22:33 +0100
    Re: TaskWindow -txt &xxxxxxxx "Ste (news)" <steve@revi11.plus.com> - 2011-09-28 15:27 +0100
      Re: TaskWindow -txt &xxxxxxxx Martin Wuerthner <spamtrap@mw-software.com> - 2011-09-28 17:16 +0200
        Re: TaskWindow -txt &xxxxxxxx "Ste (news)" <steve@revi11.plus.com> - 2011-09-28 19:52 +0100
          Re: TaskWindow -txt &xxxxxxxx Erik G <erikg@noname.invalid> - 2011-09-30 06:02 +0200
        Re: TaskWindow -txt &xxxxxxxx druck <news@druck.org.uk> - 2011-10-02 16:13 +0100
          Re: TaskWindow -txt &xxxxxxxx Erik G <erikg@noname.invalid> - 2011-10-13 11:23 +0200
            Re: TaskWindow -txt &xxxxxxxx Alex Macfarlane Smith <nospam@archifishal.co.uk> - 2011-10-13 21:08 +0100
            Re: TaskWindow -txt &xxxxxxxx druck <news@druck.org.uk> - 2011-10-15 12:13 +0100
              Re: TaskWindow -txt &xxxxxxxx Erik G <erikg@noname.invalid> - 2011-10-18 16:25 +0200
                Re: TaskWindow -txt &xxxxxxxx Martin Wuerthner <spamtrap@mw-software.com> - 2011-10-19 10:45 +0200
    Re: TaskWindow -txt &xxxxxxxx Erik G <erikg@noname.invalid> - 2011-09-30 05:47 +0200
      Re: TaskWindow -txt &xxxxxxxx Dave Higton <davehigton@dsl.pipex.com> - 2011-09-30 22:38 +0100
        Re: TaskWindow -txt &xxxxxxxx Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-10-01 05:49 +0200
          Re: TaskWindow -txt &xxxxxxxx Martin Wuerthner <spamtrap@mw-software.com> - 2011-10-01 13:19 +0200
        Re: TaskWindow -txt &xxxxxxxx Dave Higton <davehigton@dsl.pipex.com> - 2011-10-01 20:20 +0100
          Re: TaskWindow -txt &xxxxxxxx Steve Fryatt <news@stevefryatt.org.uk> - 2011-10-01 20:51 +0100
            Re: TaskWindow -txt &xxxxxxxx Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-10-01 22:46 +0200
              Re: TaskWindow -txt &xxxxxxxx Steve Fryatt <news@stevefryatt.org.uk> - 2011-10-01 22:07 +0100
              Re: TaskWindow -txt &xxxxxxxx Steve Fryatt <news@stevefryatt.org.uk> - 2011-10-01 22:04 +0100
              Re: TaskWindow -txt &xxxxxxxx Dave Higton <davehigton@dsl.pipex.com> - 2011-10-01 22:45 +0100
            Re: TaskWindow -txt &xxxxxxxx Dave Higton <davehigton@dsl.pipex.com> - 2011-10-01 22:44 +0100
          Re: TaskWindow -txt &xxxxxxxx Erik G <erikg@noname.invalid> - 2011-10-18 15:23 +0200
            Re: TaskWindow -txt &xxxxxxxx Erik G <erikg@noname.invalid> - 2011-10-18 15:55 +0200
            Re: TaskWindow -txt &xxxxxxxx druck <news@druck.org.uk> - 2011-10-19 20:27 +0100
  Re: TaskWindow -txt &xxxxxxxx Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-10-14 07:53 +0200
    Re: TaskWindow -txt &xxxxxxxx Gavin Wraith <gavin@wra1th.plus.com> - 2011-10-14 11:43 +0100
      Re: TaskWindow -txt &xxxxxxxx Martin Wuerthner <spamtrap@mw-software.com> - 2011-10-14 13:26 +0200
        Re: TaskWindow -txt &xxxxxxxx Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-10-15 20:37 +0200
    Re: TaskWindow -txt &xxxxxxxx druck <news@druck.freeuk.com> - 2011-10-16 18:26 +0100
      Re: TaskWindow -txt &xxxxxxxx Stewart Brodie <stewart.brodie@ntlworld.com> - 2011-10-16 23:28 +0100
        Re: TaskWindow -txt &xxxxxxxx druck <news@druck.org.uk> - 2011-10-19 20:30 +0100

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