Foreign surface

[gherissi ayachi]

Hi,

Background: our library allow to grab video to a supplied windows 
handle, When using X11 the user pass the XID to the lib

and we can paint to this Window and do some interaction (pointer), All 
is done in the same process.

In Wayland, The user has to provide us with his wl_display and 
wl_surface and we have to use  subsurface to do the paint right ?

what about  pointer events (motion and button).

Thank's