Sets the reference window that will be used when atspi_generate_mouse_event
is called. Coordinates will be assumed to be relative to this window. This
is needed because, due to Wayland's security model, it is not currently
possible to retrieve global coordinates.
If NULL is passed, then AT-SPI will use the window that has focus at the
time that atspi_generate_mouse_event is called.
Sets the reference window that will be used when atspi_generate_mouse_event is called. Coordinates will be assumed to be relative to this window. This is needed because, due to Wayland's security model, it is not currently possible to retrieve global coordinates. If NULL is passed, then AT-SPI will use the window that has focus at the time that atspi_generate_mouse_event is called.