From:	gautam AT interlog DOT com (Gautam N. Lad)
Newsgroups:	comp.os.msdos.djgpp
Subject:	How do I shell-out from graphics-mode into text-mode and back, in GRX v2.0?
Date:	Sat, 22 Feb 97 16:55:34 GMT
Organization:	InterLog Internet Services
Lines:	56
Message-ID:	<5enc9k$g9e@news.interlog.com>
NNTP-Posting-Host:	ip220-54.cc.interlog.com
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Hi,
In my program (which has a GUI), there's a button that allows the user to 
shell-out to DOS text-mode.  I'm using POV-Ray (for 
those who don't know it, it's a renderer), and in my program, when the user 
presses the button, POV-Ray is launched to render an image.  What I would like 
to do is shell-out into text-mode, run POV-Ray, and then return back to my 
GUI.

Here's a snippet of what happens when the button's pressed:

		// determine if button's pressed.  Return TRUE if so.
                  if (FILES[5].ClickedD(evt.x,evt.y)) 
                    {
                    FILES[5].ClickedUP(DGray,"Preview");
		
		// Create the batch file that will be run
                    if((fp = fopen("PREVIEW.BAT","w"))==NULL)
                       {
                       sound(500); delay(100); nosound();
                        exit(0);
                       }
                    fprintf(fp,"POVRAY -w160 -h120 -iPREVIEW.POV -f +dgt +p");
                    fclose(fp);

             	// this function will write the scene that POV-Ray will render
                    ExportPOV();

		// Change to text-mode.  Am I doing this right?
                    GrSetMode(GR_default_text);

		// Run the batch file
                    system("PREVIEW.BAT");
                    }

I'm using: GrSetMode(GR_width_height_color_graphics,800,600,256);
to set the graphics mode.

What I want is to return to that graphics mode, after system("PREVIEW.BAT"); 
is finished running.

BTW, When POV-Ray is rendering, it's also giving a preview as it renders the 
image.  


Thanks!

****************************************************
* Gautam N. Lad                                    *
*--------------------------------------------------*
*                                                  *
* E-Mail	: gautam AT interlog DOT com              *
* Website	: http://www.interlog.com/~gautam  *
*                                                  *
* OS/2, DOS/Windows, Graphics Gallery, Software,   *
* Links, Rayzor Editor/2, POV-Ray,  and more.      *
****************************************************

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