       drag.wind_handle=muis->wind_handle;
       drag.type=5;     /* fixed box drag type */
       drag.x0=muis->mousex-60;
       drag.y0=muis->mousey-40;
       drag.x1=muis->mousex+60;
       drag.y1=muis->mousey+40;
       drag.px0=0;
       drag.py0=0;
       drag.px1=2*1279;
       drag.py1=1024;
       r.r[1]=(int)&drag;
       err=os_swix(Wimp_DragBox,&r);                  
       }