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From: Glenn.Mcpherson@f421.n109.z1.fidonet.org (Glenn Mcpherson)
Newsgroups: comp.sys.mac.hypercard
Subject: Re: Centering Modal Dialog
Message-ID: <3031.278D9BF1@blkcat.fidonet.org>
Date: 11 Jan 91 02:00:55 GMT
Sender: ufgate@blkcat.fidonet.org (newsout1.26)
Organization: FidoNet node 1:109/421 - The Twilight Clone, Paul Heller
Lines: 40

> I'll bet this has been asked before.  Is there any way to cause
> HyperCard's modal dialogs to center themselves on the card window
> rather than on the physical screen?
 
Try the following Think C code:
 
  /* pp is the XCmdPtr that Hypercard gives you... */
 
  Rect   r;
  Handle res;
  int    h, v;
  int    wHor = 102, wVer = 50;   /* you set these! */
 
  theRes = EvalExpr(pp, "\pthe rect of card window");
  if(theRes == NIL)
    /* ERROR! */;
 
  HLock( theRes    );
  CtoPstr( *theRes );
  StrToRect( pp, *theRes, &r );
  HUnlock( theRes );
  DisposHandle( theRes );
    
  h = (r.right  - r.left - wHor) / 2 + r.left;
  v = (r.bottom - r.top  - wVer) / 2 + r.top;
  SetRect(&r, h, v, h + wHor, v + wVer);
 
  /* use "r" to open a window... */
 
Hope this helps...
 
Glenn McPherson
Somewhere on Fidonet!


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