[vtkusers] RenderWindow refresh for Multiple renders in VTK

[Cheng Zhigao]

Hi,

     My codes dynamically adds and removes renders in the RenderWindow. The problem is everytime  i add a new render, the renderwindow will only refresh after i do something on the renderwindow like a mouse click. Anyway so that the renderwindow can refresh as soon as it is updated?

   Thanks.   

Regards,
zhigao