getDeviceCursor
Retrieves a GdkCursor pointer for the @device currently set on the specified GdkSurface.
If the return value is null then there is no custom cursor set on the specified surface, and it is using the cursor for its parent surface.
Use method@Gdk.Surface.set_cursor to unset the cursor of the surface.
Return
a GdkCursor
Parameters
device
a pointer GdkDevice