scrwidth
col += scrwidth(c);
extern int scrwidth(wchar_t);
if ((nscrsz = scrwidth(wchar)) == 0)
extern int scrwidth(wchar_t); /* header file? */
scrwidth = GetDeviceCaps(hdc, HORZRES);
r.left = (scrwidth - dlgwidth) / 2;
int scrwidth, scrheight;