Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!bloom-beacon!athena.mit.edu!jstravis
From: jstravis@athena.mit.edu (John S. Travis)
Newsgroups: comp.windows.x
Subject: Drawables
Message-ID: <15320@bloom-beacon.MIT.EDU>
Date: 23 Oct 89 19:09:56 GMT
References: <8910122202.AA01845@iceland.steinmetz.ge.com>
Sender: daemon@bloom-beacon.MIT.EDU
Reply-To: jstravis@athena.mit.edu (John S. Travis)
Organization: Massachusetts Institute of Technology
Lines: 22

Widgets and Pixmaps and other stuff are often reffered to as drawables.
I have a program that calls various functions to write on a widget. I
now would also like to write to a Pixmap. Must i recopy my various 
functions and set the parameter as Pixmap or is there Drawable declaration
that covers both. Writing this i realize it's a silly question, but
can i get around this. Send the Pixmap cast a Widget--this seems like
ity could never work, but i'm an amteur so tell me if it would. Example 
simple function below, thanks.

john travis
jstravis@athena.mit.edu

     Widget  w;
     GC      gc;
     int   x,y,x2,y2;
{
  Display   *dpy =XtDisplay(w);
  Window    win = XtWindow(w);

  check_points(&x,&y,&x2,&y2);
  XFillArc(dpy,win,gc,x,y,x2-x,y2-y,0,64 * 360);
}