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─────Run-Time Library───────────────────────────────────────────────────────
 
/* WGETSIZE.C - Demonstrate getting the
 * size of a QuickWin window on the screen
 */
 
#include <io.h>
#include <stdio.h>
 
#define OPENFLAGS   "w"          /* Access permission */
#define PERSISTFLAG _WINPERSIST  /* Keep on screen */
 
void main()
{
   int nRes;                /* Result */
   FILE *wp;                /* File pointer */
   struct _wsizeinfo ws;    /* Size information */
 
   /* Open a window */
   /* NULL arguments accept default characteristics */
   wp = _fwopen( NULL, NULL, OPENFLAGS );
   if( wp == NULL )
   {
      printf( "***ERROR:_fwopen\n" );
      exit( -1 );
   }
 
   /* Get the window's size and screen position */
   ws._version = _QWINVER;
   nRes = _wgetsize( _fileno( wp ), _WINCURRREQ, &ws );
   if( nRes == -1 )
   {
      printf( "***ERROR: _wgetsize\n" );
      exit( -1 );
   }
   nRes = fprintf( wp, "Size:\n" );
   nRes = fprintf( wp, "  Upper Left: x = %d\n", ws._x );
   nRes = fprintf( wp, "              y = %d\n", ws._y );
   nRes = fprintf( wp, "  Width:      w = %d\n", ws._w );
   nRes = fprintf( wp, "  Height:     h = %d\n", ws._h );
 
   nRes = _wclose( _fileno( wp ), PERSISTFLAG );
 
   exit( 0 );
}
                                    -♦-