GNAT Ada - Clear Screen

GNAT Ada - Clear Screen

[Fingertip]

Hello everyone,

This is the first time I post here, so I hope I don't violate any 
guidelines and/or rules you guys set here.

Now, for my question:

I am using a GNAT Ada compiler, and I want to be able to clear the console 
window.

I've searched the net for some solutions, but the only solutions I found 
were:
ADA.TEXT_IO.NEW_PAGE;

And:
ADA.TEXT_IO.NEW_LINE (24);

The first solution doesn't really work. It just outputs the ASCII.FF char, 
but it doesn't do anything.

The second solution isn't much help, because it moves the marker to the 
bottom of the screen. When I try to get it back to the top with:
ADA.TEXT_IO.SET_COL  (1);
ADA.TEXT_IO.SET_LINE (1);

It outputs the ASCII.FF character again, but does nothing else.

I would appreciate any help you have to offer.

Thanks in advace,
Fingertip

Re: GNAT Ada - Clear Screen

[David C. Hoos, Sr.]

Your problem is not an Ada (language) issue, but an OS issue.
You would have the same problem with any language.

Rather than go into all of the possibilities, if you can
tell us what OS you're using, and what Ada compiler, we'll
be able to give you more directed help.

----- Original Message ----- 
From: "Fingertip" <kammar@deletethispart.actcom.co.il>
Newsgroups: comp.lang.ada
To: <comp.lang.ada@ada.eu.org>
Sent: April 18, 2003 4:05 AM
Subject: GNAT Ada - Clear Screen


> Hello everyone,
> 
> This is the first time I post here, so I hope I don't violate any 
> guidelines and/or rules you guys set here.
> 
> Now, for my question:
> 
> I am using a GNAT Ada compiler, and I want to be able to clear the console 
> window.
> 
> I've searched the net for some solutions, but the only solutions I found 
> were:
> ADA.TEXT_IO.NEW_PAGE;
> 
> And:
> ADA.TEXT_IO.NEW_LINE (24);
> 
> The first solution doesn't really work. It just outputs the ASCII.FF char, 
> but it doesn't do anything.
> 
> The second solution isn't much help, because it moves the marker to the 
> bottom of the screen. When I try to get it back to the top with:
> ADA.TEXT_IO.SET_COL  (1);
> ADA.TEXT_IO.SET_LINE (1);
> 
> It outputs the ASCII.FF character again, but does nothing else.
> 
> I would appreciate any help you have to offer.
> 
> Thanks in advace,
> Fingertip
> _______________________________________________
> comp.lang.ada mailing list
> comp.lang.ada@ada.eu.org
> http://ada.eu.org/mailman/listinfo/comp.lang.ada
> 
> 

Re: GNAT Ada - Clear Screen

[Fingertip]

"David C. Hoos, Sr." <david.c.hoos.sr@ada95.com> wrote in
news:mailman.2.1050657623.25854.comp.lang.ada@ada.eu.org: 

> Your problem is not an Ada (language) issue, but an OS issue.
> You would have the same problem with any language.
> 
> Rather than go into all of the possibilities, if you can
> tell us what OS you're using, and what Ada compiler, we'll
> be able to give you more directed help.


WinME.

But I want it to run on other WinX OS...

Thanks!

Fingertip

Re: GNAT Ada - Clear Screen

[David Holm]

Hi,
there is an ncurses binding for Ada. I suggest you get that if you want to be able to do
advanced console manipulations that work on all kinds of terminals.

//David Holm

On Fri, 18 Apr 2003 09:05:44 GMT
Fingertip <kammar@deletethispart.actcom.co.il> wrote:

> Hello everyone,
> 
> This is the first time I post here, so I hope I don't violate any 
> guidelines and/or rules you guys set here.
> 
> Now, for my question:
> 
> I am using a GNAT Ada compiler, and I want to be able to clear the console 
> window.
> 
> I've searched the net for some solutions, but the only solutions I found 
> were:
> ADA.TEXT_IO.NEW_PAGE;
> 
> And:
> ADA.TEXT_IO.NEW_LINE (24);
> 
> The first solution doesn't really work. It just outputs the ASCII.FF char, 
> but it doesn't do anything.
> 
> The second solution isn't much help, because it moves the marker to the 
> bottom of the screen. When I try to get it back to the top with:
> ADA.TEXT_IO.SET_COL  (1);
> ADA.TEXT_IO.SET_LINE (1);
> 
> It outputs the ASCII.FF character again, but does nothing else.
> 
> I would appreciate any help you have to offer.
> 
> Thanks in advace,
> Fingertip

Re: GNAT Ada - Clear Screen

[Jeffrey Creem]

Note that the ncurses binding is built in to the later ncurses distributions
so you dont have to go
looking for it.

ftp://ftp.gnu.org/gnu/ncurses

"Fingertip" <kammar@deletethispart.actcom.co.il> wrote in message
news:newscache$828jdh$1ko$1@lnews.actcom.co.il...
> Hello everyone,
>
> This is the first time I post here, so I hope I don't violate any
> guidelines and/or rules you guys set here.
>
> Now, for my question:
>
> I am using a GNAT Ada compiler, and I want to be able to clear the console
> window.

Re: GNAT Ada - Clear Screen

[Fingertip]

David Holm <david@realityrift.com> wrote in
news:20030418120111.2cea818c.david@realityrift.com: 

> Hi,
> there is an ncurses binding for Ada. I suggest you get that if you
> want to be able to do advanced console manipulations that work on all
> kinds of terminals. 
> 
> //David Holm
> 

As a beginner programmer in ada, can you be a bit more specific?

What is a binding? Where can I find the one you are talking about?

Thanks!

Fingertip

Re: GNAT Ada - Clear Screen

[Fingertip]

Hmm... I thought GNAT Ada explained enough about the compiler. Apparently I 
was wrong. So, the exact version is:

"AdaGIDE v. 6.22.10"

Thanks in advance,
Fingertip

Re: GNAT Ada - Clear Screen

[Preben Randhol]

Fingertip wrote:
> Hmm... I thought GNAT Ada explained enough about the compiler. Apparently I 
> was wrong. So, the exact version is:
> 
> "AdaGIDE v. 6.22.10"

This is the IDE you are using, not the compiler.

Preben

Re: GNAT Ada - Clear Screen

[Fingertip]

Preben Randhol <randhol+news@pvv.org> wrote in
news:slrnba03ar.rkc.randhol+news@kiuk0152.chembio.ntnu.no: 

> This is the IDE you are using, not the compiler.
> 
> Preben

Oh...

Erm, then maybe it is "GNATMAKE 3.12P"?

Thanks again,
Fingertip

Re: GNAT Ada - Clear Screen

[Preben Randhol]

Fingertip wrote:
> Preben Randhol <randhol+news@pvv.org> wrote in
> news:slrnba03ar.rkc.randhol+news@kiuk0152.chembio.ntnu.no: 
> 
>> This is the IDE you are using, not the compiler.
>> 
>> Preben
> 
> Oh...
> 
> Erm, then maybe it is "GNATMAKE 3.12P"?

Yes sound correct. I recommend you upgrade to Gnat 3.15p as Gnat 3.12p
is very old. 

You can find it here: http://libre.act-europe.fr/GNAT/

Preben

Re: GNAT Ada - Clear Screen

[tmoran]

> WinME.
If that will support ANSI.SYS in text mode, go to www.adaic.com
and search for  "ansi terminal emulator"

> But I want it to run on other WinX OS...
  I note "ansi.sys" is present in my w2k's winnt\system32 directory, but
I haven't actually tried it.  Windows really prefers that you use their
GUI rather than text mode.

Re: GNAT Ada - Clear Screen

[Michael Bode]

tmoran@acm.org writes:

>   I note "ansi.sys" is present in my w2k's winnt\system32 directory, but
> I haven't actually tried it.  Windows really prefers that you use their
> GUI rather than text mode.

This is only for DOS apps. It is not used for Windows apps. You need a
DOS Ada compiler to use ANSI escape codes with NT. The proper
functions for Windows apps are the Windows console API. Specifically
to clear the console screen in Windows use this method:
http://support.microsoft.com/default.aspx?scid=kb%3ben-us%3b99261

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Re: GNAT Ada - Clear Screen

[Richard Riehle]

Fingertip wrote:

> I am using a GNAT Ada compiler, and I want to be able to clear the console
> window.

Dowload a copy of NT_Console or Console_IO, both of which will be
more fund to use than Ada.Text_IO on a Windows platform.   These
are written by Jerry Van Dijk.  I think both are available from either
of the Ada web sites.

Richard Riehle

Re: GNAT Ada - Clear Screen

[David Holm]

http://md.uniyar.ac.ru/gsh/docs/ncurses/

On Fri, 18 Apr 2003 11:02:45 GMT
Fingertip <kammar@deletethispart.actcom.co.il> wrote:

> David Holm <david@realityrift.com> wrote in
> news:20030418120111.2cea818c.david@realityrift.com: 
> 
> > Hi,
> > there is an ncurses binding for Ada. I suggest you get that if you
> > want to be able to do advanced console manipulations that work on all
> > kinds of terminals. 
> > 
> > //David Holm
> > 
> 
> As a beginner programmer in ada, can you be a bit more specific?
> 
> What is a binding? Where can I find the one you are talking about?
> 
> Thanks!
> 
> Fingertip

Re: GNAT Ada - Clear Screen

[Steve]

"Fingertip" <kammar@deletethispart.actcom.co.il> wrote in message
news:newscache$ahdjdh$dso$1@lnews.actcom.co.il...
> David Holm <david@realityrift.com> wrote in
> news:20030418120111.2cea818c.david@realityrift.com:
>
> > Hi,
> > there is an ncurses binding for Ada. I suggest you get that if you
> > want to be able to do advanced console manipulations that work on all
> > kinds of terminals.
> >
> > //David Holm
> >
>
> As a beginner programmer in ada, can you be a bit more specific?
>
> What is a binding? Where can I find the one you are talking about?

Some things you would like to program which are not "built in" to the
programming language (like clearing the screen).  To perform these
operations you must call routines that are not built into the language, and
are operating system specific.

"Bindings" refer to the code that permit you to access libraries from Ada.

A good source of bindings and general information is found at:
  http://www.adapower.com

You'll also find a lot of links to other good sites there.

For clearing the screen go to:

http://users.ncrvnet.nl/gmvdijk/packages.html

And take a look at the NT/Win95 Console package.

I think it has what you're looking for.

Steve
(The Duck)

> Thanks!
>
> Fingertip

Re: GNAT Ada - Clear Screen

[Tarjei T. Jensen]

"Fingertip" wrote:
> I am using a GNAT Ada compiler, and I want to be able to clear the console
> window.

There is a solution. You will have to search this newsgroup. Search this
group for the name "Jerry van Dijk". He has created a NT console package.

BTW I have not used it.

greetings,

Re: GNAT Ada - Clear Screen

[Aurele Vitali]

"Tarjei T. Jensen" <tarjei@online.no> wrote in message news:<9e6oa.5034$8g5.77486@news2.e.nsc.no>...
> "Fingertip" wrote:
> > I am using a GNAT Ada compiler, and I want to be able to clear the console
> > window.
> 
> There is a solution. You will have to search this newsgroup. Search this
> group for the name "Jerry van Dijk". He has created a NT console package.
> 
> BTW I have not used it.
> 
> greetings,

Here a quick way of clearing the screen on NT:

  function Command_Interpreter( Command : in Interfaces.C.Strings.Chars_Ptr )
                                return Interfaces.C.Int; 
  pragma import( c, Command_Interpreter, "system" );

  -- Set_Console_Mode: This function sets the number of lines and columns 

  procedure Set_Console_Mode is
    iResult : Interfaces.C.Int;
  begin
    iResult := Command_Interpreter( Interfaces.C.Strings.New_String( 
                          "MODE CON COLS=80 LINES=25" ) );
  end Set_Console_Mode;

  -- Clear_Screen: This function clears the screen 

  procedure Clear_Screen is
    iResult : Interfaces.C.Int;
  begin
    iResult := Command_Interpreter( Interfaces.C.Strings.New_String( "CLS" ) );
  end Clear_Screen;

Cheers
Aurele