Function gdk_sys::gdk_seat_grab

pub unsafe extern "C" fn gdk_seat_grab(
    seat: *mut GdkSeat, 
    window: *mut GdkWindow, 
    capabilities: GdkSeatCapabilities, 
    owner_events: gboolean, 
    cursor: *mut GdkCursor, 
    event: *const GdkEvent, 
    prepare_func: GdkSeatGrabPrepareFunc, 
    prepare_func_data: gpointer
) -> GdkGrabStatus

This is supported on crate feature v3_20 only.