Path: utzoo!attcan!uunet!wuarchive!zaphod.mps.ohio-state.edu!unix.cis.pitt.edu!dsinc!bagate!cbmvax!peter
From: peter@cbmvax.commodore.com (Peter Cherna)
Newsgroups: comp.sys.amiga.tech
Subject: Re: 3d-look
Message-ID: <15859@cbmvax.commodore.com>
Date: 14 Nov 90 15:34:01 GMT
References: <39661@ut-emx.uucp>
Reply-To: peter@cbmvax.commodore.com (Peter Cherna)
Organization: Commodore, West Chester, PA
Lines: 63

In article <39661@ut-emx.uucp> amiga@ccwf.cc.utexas.edu (Paul) writes:
> (I wrote)
>>wbPens = {0, 1, 1, 2, 1, 3, 1, 0, 3, ~0};
>>
>>Then you would say
>
>>	myscreen = OpenScreenTags(&mynewscreen,
>>		SA_Pens, wbPens,
>>		TAG_DONE);
>
>I am also trying to d this but I am having a few problems.
>I have tried my code as stated above and blink gives an
>undefined symbol _OpenScreenTags. Do I need to include somthing
>else? my includes are as follows

You need a 2.0-current version of amiga.lib.

Alternately, you can define your own OpenScreenTags(), as follows

struct Screen *OpenScreenTags( struct NewScreen *ns, Tag firsttag, ...)
{
    return( OpenScreenTagList( ns, &firsttag ) );
}


>The above statement is confusing to me. Do you create a ExtNewScreen
>structure with a tag list pointer, that you pass to OpenScreen() and
>then set the NS_EXENDED flag? I tried it this way and could not get 
>it to work either. I think my problem here is I'm not sure how to make
>a tag-list for this (or other things). A small code example of a tag 
>would be helpful.  

Set the NS_EXTENDED flag in the ExtNewScreen structure before you
call OpenScreen().

To make a taglist, you would say:

struct TagItem mytags[] =
{
	SA_Pens, (ULONG) mypens,
	TAG_DONE, 0,		/* Need full tagitem, hence 0 after TAG_DONE */
};

struct ExtNewScreen myens =
{
	...
	... | NS_EXTENDED,	/* Set the extended flag */
	...			/* usual newscreen stuff goes here */
	mytags,			/* taglist pointer */
};

...

	screen = OpenScreen( (struct NewScreen *) myens );

>Amiga@ccwf.cc.utexas.edu	            .....Paul......

     Peter
--
     Peter Cherna, Software Engineer, Commodore-Amiga, Inc.
     {uunet|rutgers}!cbmvax!peter    peter@cbmvax.commodore.com
My opinions do not necessarily represent the opinions of my employer.
"She read him like a book:  she liked to peek at his end."