On Mon, 23 Jun 2003, Maxime Labelle wrote: > I was wondering if it is possible (and I know it is..) to hack the XFree86 > code to make the virtual screen follow the mouse's cursor as if the screen's > window mouvement was linked to the centered cursor. By that I mean that if I > move the cursor, the whole zoomed section of the screen moves with the > cursor. Then if the cursor reach a certain percentage of the zoomed screen' > width and height it stops being linked so it becomes possible to move the > cursor freely again..
> The purpose of this is for a friend of mine who has 30% of his vision and is > using UNIX. He needs his screen to be in very low resolution for him to see > things clearly. > I am just asking a evaluation of how hard and how long might it takes to do > such a job onto the XFree86 source code. I will do such modifications myself > but I was hoping for you to give me a hand to publish the code and expose it > on xfree.org to promote and help people with vision problems.. Something like this shouldn't be too hard. In xc/programs/Xserver/hw/xfree86/common/xf86Cursor.c in the sources, you'll find the functions xf86InitViewport(), xf86PointerMoved() and xf86SwitchMode(). These could be generalised to factor in a configurable percentage of the physical resolution whose edges the pointer's hot-spot needs to stay away from. Marc. +----------------------------------+-----------------------------------+ | Marc Aurele La France | work: 1-780-492-9310 | | Computing and Network Services | fax: 1-780-492-1729 | | 352 General Services Building | email: [EMAIL PROTECTED] | | University of Alberta +-----------------------------------+ | Edmonton, Alberta | | | T6G 2H1 | Standard disclaimers apply | | CANADA | | +----------------------------------+-----------------------------------+ XFree86 Core Team member. ATI driver and X server internals. _______________________________________________ XFree86 mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xfree86
