:Available conditions for testing the user click 
:Syntax,Meaning

:point,x,y
Point at (x,y). It is a ``fat'' point, with fixed width.

:rectangle,x1,y1,x2,y2
The interior of a rectangle with two corners (x1,y1) and (x2,y2).

:circle,x,y,d
The interior of a circle with center (x,y) and diameter d.

:ellipse,x,y,w,h
The interior of an ellipse with center (x,y), width w, and height h.

:polygon,x1,y1,x2,y2,x3,y3,...
The interior of a polygon
 generated by the points (x1,y1), (x2,y2), (x3,y3), ...

:bound,FNAME,x,y
bound defined in the image file FNAME, which must be of the same size as the clicked image (but can be a different image).
The condition is met if (x,y) is in the same fill zone as the user click.
If fill is in the option field of the reply, the zone is filled in red or green (instead of a ball).
$wims_name_warning. If the exercise is in a class, the image NOMFIC should be copied  :

\text{cache=draw(\size[1],\size[2]
copy 0,0,-1,-1,-1,-1,NOMFIC)}
\text{cache = slib(oef/insfilename)}

In a module, it is sufficient to write its name.

Two options are available:

-  fill : the zone is filled instead of
  indicated by a ball in the answer (do not use in the case where an
  auxiliary image FNAME has been used).

-  goodanswershown: show the correct answer
  on the image in case of wrong answer.

:bound,FNAME
as above, but the condition is met if the user click has DIFFERENT color than the pixel on the upper-left corner of FNAME.
