[Paraview] server-side InvokeEvent(...) doesn't call client-side observer

[Utkarsh Ayachit]

This is not a use-case supported in ParaView. We don't forward events from
server to client.

On Wed, Nov 22, 2017 at 12:53 PM, Kolja Petersen <petersenkolja at gmail.com>
wrote:

> Hello,
> I would like to invoke a callback on a proxy in a pvpython session from a
> server-side method.
>
> In my server-side class "vtkCustom" I have a method
> void vtkCustom::SetData(int i){
>   ...
>   this->InvokeEvent(1999,NULL);
>   ...
> }
>
>
> On the client side, I create a proxy to a vtkCustom object, register an
> observer and set the "Data" property, which should invoke eventid=1999:
> ...
> custom=pxm.NewProxy("myextensions","Custom")
> pxm.RegisterProxy("myextensions","Custom",custom)
>
> def fun(obj,event):
>   print "CALLBACK",obj,event
>
> custom.AddObserver(1999,fun)
> vtk.vtkSMPropertyHelper(custom.GetProperty("Data")).Set(42)
> ...
>
> The observer function "fun" on the client is never invoked, although the
> server-side invokes that event. I'm misunderstanding some concept of
> Paraviews event mechanism for sure. Can you help me correct my steps?
> Thanks
> Kolja
>
>
>
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