pro wi, wnum , limits=lim,wsize=wsize,wposition=wposition,show=show,verbose=verbose, _extra=ex
if (!d.flags and 256) eq 0 then begin
dprint,dlevel=2,'Device has no windows!',/no_check_events
if keyword_set(wsize) then begin
device, set_resolution = wsize
endif
return
endif
if n_elements(wnum) eq 0 then begin
wnum=!d.window
dprint,'Current window is: ',wnum,form='(a,i0)',verbose=verbose,dlevel=2,/no_check_events
endif
device,window_state=windows
s = windows[wnum > 0]
if s eq 1 then begin
wset,wnum
if not keyword_set(wsize) then wsize = [!d.x_size,!d.y_size]
if wsize[0] ne !d.x_size or wsize[1] ne !d.y_size then s=0
endif
if s eq 0 then begin
if keyword_set(wposition) then begin
xpos = wposition[0]
ypos = wposition[1]
endif
if keyword_set(wsize) then $
window,wnum > 0,xsize=wsize[0],ysize=wsize[1],xpos=xpos,ypos=ypos,_extra=ex $
else $
window,wnum > 0,_extra=ex
endif
if keyword_set(show) then wshow
return
end