epstein@trwacs.UUCP (Jeremy Epstein) (02/01/91)
A question oh great hardware & X gurus. On my Sun 3, the mouse reports relative movement (at a hardware level). Hence to warp the pointer, the server need only interpret the relative movement with respect to a different initial position. The mouse device driver is unaware of any such warping. The question: Does there exist any hardware where warping the pointer would require writing to the device? This seems to imply that the pointer would provide absolute (rather than relative) positioning. What sort of devices would they be (i.e., mouse, trackball, tablet)? In other words, can I assume that the mouse is ALWAYS a read only device, or might there be instances where I have to write to it? Thanks for any ideas! --Jeremy -- Jeremy Epstein UUCP: uunet!trwacs!epstein Trusted X Research Group Internet: epstein@trwacs.fp.trw.com TRW Systems Division Voice: +1 703/876-8776 Fairfax Virginia