(x_text_icon, x_new_font): Don't BLOCK_INPUT.
(XTins_del_lines): BLOCK_INPUT here.
(XTupdate_end): Don't turn on cursor if minibuffer-screen.
(XTread_socket): On MotionNotify, just that screen is selected before
processing.
(XTtopos): If updating_screen, just set x and y, don't flush.
(x_text_icon, x_new_font): Don't BLOCK_INPUT.
(XTins_del_lines): BLOCK_INPUT here.
(XTupdate_end): Don't turn on cursor if minibuffer-screen.
(XTread_socket): On MotionNotify, just that screen is selected before
processing.
(XTtopos): If updating_screen, just set x and y, don't flush.