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Re: Hiding and revealing part of a window

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In article <5cf93cf94dbob@sick-of-spam.invalid>,
   Bob Latham <bob@sick-of-spam.invalid> wrote:
> In article <mpro.thz9x000u4xlm03ow.news@stevefryatt.org.uk>,
>    Steve Fryatt <news@stevefryatt.org.uk> wrote:
> > On 10 Jul, Bob Latham wrote in message
> >     <5cf627bdb6bob@sick-of-spam.invalid>:

> My extra panel is at the bottom of the window. So I assume this is
> the minimum y settings.

> So I create a window in WinEd that contains all elements including
> the icons at the bottom which are usually hidden.

> Okay done that.

> > Adjust the data block for Wimp_OpenWindow (including the scroll
> > offsets),

> Adjust which parameters? What am I trying to achieve doing this? 

> > call Wimp_OpenWindow, 

> Okay.

> > then call Wimp_SetExtent. 

> To do what?
> What am I trying to achieve doing this?


> Sorry to be thick but I can't understand the principle of what
> you're telling me to do. I need to understand before I can code
> something.

I am confused as well! If you have a fixed main window area, but
sometimes you want to display another fixed area at the bottom of it,
then I would think you need to alter the Visible Area displayed, not
the Work Area (which Wimp_SetExtent does).

Create a window with two icons in WinEd, vertically spaced.
Then Menu => Work Area => Minimise & Update you will see the work
area X1 & Y1 shrink, and the scroll bars on the new window expand to
fill the bar.
But the DISPLAYED window does not change - you still see the two
icons.
If you now use Menu => Visible Area and reduce the Height by 50%,
when you click on Move the visible window will halve in height, and
you will probably only be able to see the top icon. 

Change the Visible height back to the original, and you will see both
icons again.

The change in Visible Area is done with a Wimp_GetWindowState, then
change just the visible min Y value and nothing else, then issue an
Wimp_OpenWindow.

However, if the main part of the window is of variable height, and/or
you need the scroll bars, then this simple way will not work, as the
extra bottom icons will need to move to the bottom of the window if
the top part changes size.

-- 
Martin Avison 
Note that unfortunately this email address will become invalid
without notice if (when) any spam is received. 

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Thread

Hiding and revealing part of a window Bob Latham <bob@sick-of-spam.invalid> - 2026-07-10 09:49 +0100
  Re: Hiding and revealing part of a window Martin <News04@avisoft.f9.co.uk> - 2026-07-10 10:06 +0100
    Re: Hiding and revealing part of a window Bob Latham <bob@sick-of-spam.invalid> - 2026-07-10 11:25 +0100
      Re: Hiding and revealing part of a window Steve Fryatt <news@stevefryatt.org.uk> - 2026-07-10 22:19 +0100
        Re: Hiding and revealing part of a window Bob Latham <bob@sick-of-spam.invalid> - 2026-07-11 10:32 +0100
          Re: Hiding and revealing part of a window Steve Fryatt <news@stevefryatt.org.uk> - 2026-07-11 16:33 +0100
            Re: Hiding and revealing part of a window Bob Latham <bob@sick-of-spam.invalid> - 2026-07-11 20:41 +0100
        Re: Hiding and revealing part of a window druck <news@druck.org.uk> - 2026-07-15 17:39 +0100
          Re: Hiding and revealing part of a window Steve Fryatt <news@stevefryatt.org.uk> - 2026-07-15 20:24 +0100
        Re: Hiding and revealing part of a window Bob Latham <bob@sick-of-spam.invalid> - 2026-07-16 11:05 +0100
          Re: Hiding and revealing part of a window Martin <News04@avisoft.f9.co.uk> - 2026-07-16 12:04 +0100
            Re: Hiding and revealing part of a window Bob Latham <bob@sick-of-spam.invalid> - 2026-07-16 12:48 +0100
              Re: Hiding and revealing part of a window Martin <News04@avisoft.f9.co.uk> - 2026-07-16 13:26 +0100
              Re: Hiding and revealing part of a window Harriet Bazley <harriet@bazleyfamily.co.uk> - 2026-07-16 14:26 +0100
                Re: Hiding and revealing part of a window Bob Latham <bob@sick-of-spam.invalid> - 2026-07-16 14:50 +0100
                Hiding and revealing part of a window Bob Latham <bob@sick-of-spam.invalid> - 2026-07-18 17:27 +0100
                Re: Hiding and revealing part of a window Martin <News04@avisoft.f9.co.uk> - 2026-07-18 22:10 +0100
                Re: Hiding and revealing part of a window Bob Latham <bob@sick-of-spam.invalid> - 2026-07-19 09:20 +0100
          Re: Hiding and revealing part of a window Jean-Michel <jmc.bruck@orange.fr> - 2026-07-16 17:45 +0200
            Re: Hiding and revealing part of a window Bob Latham <bob@sick-of-spam.invalid> - 2026-07-16 16:58 +0100
  Re: Hiding and revealing part of a window Kevin Wells <kev@kevsoft.co.uk> - 2026-07-10 16:37 +0100
    Re: Hiding and revealing part of a window Bob Latham <bob@sick-of-spam.invalid> - 2026-07-10 20:08 +0100
      Re: Hiding and revealing part of a window Harriet Bazley <harriet@bazleyfamily.co.uk> - 2026-07-12 12:12 +0100
        Re: Hiding and revealing part of a window Bob Latham <bob@sick-of-spam.invalid> - 2026-07-12 13:45 +0100
          Re: Hiding and revealing part of a window Harriet Bazley <harriet@bazleyfamily.co.uk> - 2026-07-12 23:19 +0100
      Re: Hiding and revealing part of a window Kevin Wells <kev@kevsoft.co.uk> - 2026-07-12 21:03 +0100
        Re: Hiding and revealing part of a window Steve Fryatt <news@stevefryatt.org.uk> - 2026-07-15 20:26 +0100
          Re: Hiding and revealing part of a window Kevin Wells <kev@kevsoft.co.uk> - 2026-07-17 21:06 +0100
  Re: Hiding and revealing part of a window J Peachey <john@jpeachey.co.uk> - 2026-07-10 21:15 +0000
    Re: Hiding and revealing part of a window Bob Latham <bob@sick-of-spam.invalid> - 2026-07-11 10:11 +0100

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