[Coco] splitting the screen

[Stephen H. Fischer]

Hi,

There are several ways that can be used, one is to set up the window 
descriptors like I did with the split screen ones already set up. That is 
what I am looking for. So far I have just found the descriptors asm source. 
The text description of these is what I am looking for, I may have to try 
and read the original 3.5" floppies.

In addition I created a shell+ script to convert the current window to a new 
type or create a new window.

These two methods are useful if you decide you want two (or More) screens on 
the physical window. With the limit of 80 x 24 having four 40 x 12 screens 
is a good limit to not exceed.

I am unsure if you wish to split the screen just for your own testing or 
plan to supply the program to others with split screens.

If just for your own testing then the predefined descriptors would be the 
best way to, that's what I used quite often along with changing the window 
type on the fly.

But if you plan to release the program to others then you cannot use the 
predefined window descriptor route.

The split screen Windows would have to be created on the fly using Window 
"/W" so that the next available window will be assigned by OS-9. Then that 
window would need to be made the active window and then the second widow on 
the same physical screen created. If you would wish to keep these windows 
open after you program terminates then some way of closing them would need 
to be provided. The one I created just went away when the program terminated 
which is the best way. If the data on the screen is wanted to be kept, then 
it should also be written to a text file.

I expect to find my Basic09 manual soon, I think that Tandy included 
commands for windowing. I did not use them as my work was in "C".

Off to look for more CDs and DVDs before digging out the original 3.5" disks 
which may no longer be readable. Floppy Disks have an expire date!

SHF


----- Original Message ----- 
From: "Wayne Campbell" <asa.rand at gmail.com>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Thursday, January 07, 2010 11:56 PM
Subject: Re: [Coco] splitting the screen


> I'm not sure about most of what you said, but I have the Mastering OS-9 
> pdf now, and I'm sure it will help me too.
>
> Wayne
>
> ----- Original Message ----- 
> From: "Stephen H. Fischer" <SFischer1 at Mindspring.com>
> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
> Sent: Tuesday, January 05, 2010 9:18 PM
> Subject: Re: [Coco] splitting the screen
>
>
>> Hi,
>>
>> Well, it is a little more complicated perhaps, I said I did instead of I 
>> DO
>> because NitrOS-9 might have changed things.
>>
>> Yes, you can do the same in Basic09.
>>
>> First, the Magic of Window Zero ("/W0") must be fully working.
>>
>> I had a successful system with 1, 2, 3 and 4 windows on same screen at 
>> once.
>> And used them often.
>>
>> The window descriptors were a necessary part of this.
>>
>> I do not know if the NitrOS-9 window descriptors are set up properly, the
>> stock Tandy ones I believe were not.
>>
>> I will look for the files, I was about to put the CD's away but they are
>> still handy.
>>
>> I will make the files available to all, I have noted some incorrect
>> understandings posted over the years.
>>
>>> I have read that script many times. The default startup file is a few 
>>> echos,
>>> and settime. I never found any other examples of opening windows or
>>> controlling them. The manual was insufficient.
>>
>> I now remember a little perhaps about that.
>>
>> If you examine the window creation lines with the proper window creation 
>> page open in the manual, you might learn more.
>>
>> Understanding my script requires the same process as the lines look the 
>> same. But I can supply the understanding glue to putting it all together.
>>
>> The text stream that you will generate and output will look the same.
>>
>> Don't forget your homework, learn what you can about the magic of "/W0".
>>
>> SHF
>>
>> ----- Original Message ----- 
>> From: "Wayne Campbell" <asa.rand at gmail.com>
>> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
>> Sent: Tuesday, January 05, 2010 6:55 PM
>> Subject: Re: [Coco] splitting the screen
>>
>>
>>> If I can use them in Basic09, as object-code subroutines, I'll take 
>>> them.
>>> :)
>>>
>>> Wayne
>>>
>>> ----- Original Message ----- 
>>> From: "Stephen H. Fischer" <SFischer1 at Mindspring.com>
>>> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
>>> Sent: Tuesday, January 05, 2010 4:56 PM
>>> Subject: Re: [Coco] splitting the screen
>>>
>>>
>>>> Script on the Original Tandy OS-9 L-II original distribution disk, I do
>>>> not think so.
>>>>
>>>> The set that OS-9 L-II had was so bad that I researched all the fields 
>>>> in
>>>> the Stock Windows and found some errors.
>>>>
>>>> I then created a new set of windows in assembly language that are more
>>>> useful.
>>>>
>>>> I think that I also created a Shell script that allowed the current
>>>> window to be converted.
>>>>
>>>> I have offered these files before and got no takers.
>>>>
>>>
>>>
>>> --
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>>> Coco at maltedmedia.com
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>>
>>
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>
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