Test whether the display window is being closed.

'false' until the display window is about to be closed, 'true' afterwards.

The following loop uses the browser window opening status as stopping criterion.

solct:= 0
svgrefresh              ! Start graph display before svgclosing test
while (solct<NBSOL and not svgclosing) do
  solct+=1
  draw_solution(solct)  ! Draws a graph calling svgrefresh and svgpause
end-do
svgwaitclose

This function can be used to intercept the event of the display window being closed in order to adapt the behaviour of the model execution ( e.g. to interrupt a loop with repeated graphical displays or an optimization solver run).

svgwaitclose.