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From: bjoern@drdhh.hanse.de (Bjoern Kriews)
Newsgroups: comp.sys.atari.st.tech
Subject: Re: Printing GEM Graphics
Message-ID: <2663.04.91@drdhh.hanse.de>
Date: 11 Apr 91 17:52:44 GMT
References: <63607@bbn.BBN.COM>
Organization: Digital Island
Lines: 42

From article <63607@bbn.BBN.COM>, by aking@bbn.com (Allen King):
> 
>    I've written a program which uses GEM windows, and I would like to
> add printer capability to it. The simple thing of "print screen" lacks
> the resolution I need. How do you change such a program to redirect
> its output to the printer rather than the screen?

Install GDOS & a printer driver, using device id 21 + fonts.
Then the following piece of source should bring what you expect:

     int h,i;
     int in[11],out[57];
     int p[10];

     appl_init();

     in[0]=21;  /* DEVICE ID */
     for(i=1;i<10;in[i++]=1);
     in[10]=0;  /* NDC */

     v_opnwk(in,&h,out);   /* NOT VIRTUAL !!! */

     if(!h)
          {
               printf("h: %d, couldn't open\n",h);
               appl_exit(); 
               exit(1);
          }

     v_arc(h,5000,5000,2000,0,900);
     v_clswk(h);  

     appl_exit();
     exit(0);

Hope that helps,
	Bjoern
	

---
bjoern@drdhh.hanse.de = Bjoern Kriews / Stormsweg 6 / 2000 Hamburg 76 / FRG
"gaaga mahwe Bjoern urgl ufzae Turbo-C bnub"     (J. Willamowius)