SET LIBRARY TO WLEFT 
=WPOSITION()

#include <pro_ext.h>

void putLong(long n, int width)
{
   Value val;

   val.ev_type = 'I';
   val.ev_long = n;
   val.ev_width = width;

   _PutValue(&val);
}

void FAR Example(ParamBlk FAR *parm)
{
   WHANDLE wh = _WOnTop();

   _PutStr("\ntop   ="); putLong(_WTop(wh), 5);
   _PutStr("\nleft ="); putLong(_WLeft(wh), 5);
   _PutStr("\nbottom ="); putLong(_WBottom(wh), 5);
   _PutStr("\nright  ="); putLong(_WRight(wh), 5);
}

FoxInfo myFoxInfo[] = {
   {"WPOSITION", (FPFI) Example, 0, ""},
};
FoxTable _FoxTable = {
   (FoxTable FAR *) 0, sizeof(myFoxInfo)/sizeof(FoxInfo), myFoxInfo
};